iSMACONTROLLI iSMA-B-MINI/MIX Intelligent Building Controls User Manual

June 9, 2024
iSMACONTROLLI

iSMA-B-MINI/MIX Intelligent Building Controls

iSMA-B-MINI/MIX
User Manual
Modbus

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DMP262en | 1st Issue rev. 8 | 05/2022

iSMA-B-MINI/MIX Modbus User Manual

Table of Contents

1

Introduction …………………………………………………………………………………………………………….. 6

1.1

Revision History………………………………………………………………………………………………………………..7

2

Safety Rules……………………………………………………………………………………………………………… 9

2.1

Wiring…………………………………………………………………………………………………………………………….. 10

2.2

EN 60730-1 Power Supply Considerations …………………………………………………………………. 10

2.3

FCC Compliance Note…………………………………………………………………………………………………… 10

3

Technical Specification ………………………………………………………………………………………….. 12

3.1

Summary Table for All Modules …………………………………………………………………………………… 15

4

Hardware Specification …………………………………………………………………………………………. 17

4.1

Dimensions …………………………………………………………………………………………………………………… 17

4.1.1

MINI Series Dimensions………………………………………………………………………………………….. 17

4.1.2

MIX18 Series Dimensions ……………………………………………………………………………………….. 17

4.1.3

MIX38 Series Dimensions ……………………………………………………………………………………….. 17

4.2

Power Supply Connection ……………………………………………………………………………………………. 18

4.3

LED Indicators ………………………………………………………………………………………………………………. 18

4.3.1

MIX Series Front Panels ………………………………………………………………………………………….. 18

4.3.2

MINI Series Front Panels…………………………………………………………………………………………. 19

4.4

RS485 Port ……………………………………………………………………………………………………………………. 22

4.4.1

RS485 Communication Bus Connection………………………………………………………………… 22

4.4.2

RS485 Network Termination…………………………………………………………………………………… 22

4.5

Setting Module Address……………………………………………………………………………………………….. 22

4.6

Baud Rate ……………………………………………………………………………………………………………………… 23

4.7

Protocol…………………………………………………………………………………………………………………………. 23

4.8

Default Settings…………………………………………………………………………………………………………….. 23

4.8.1

Restoring Default Settings………………………………………………………………………………………. 25

5

Inputs and Outputs……………………………………………………………………………………………….. 26

5.1

Local I/O ………………………………………………………………………………………………………………………… 26

5.2

Universal Inputs ……………………………………………………………………………………………………………. 26

5.2.1

Universal Input Voltage Connection ………………………………………………………………………. 27

5.2.2

Universal Input Current Connection………………………………………………………………………. 27

5.2.3

Universal Input Resistance Connection …………………………………………………………………. 28

5.2.4

Universal Input Dry Contact Connection ……………………………………………………………….. 28

5.3

Digital Inputs…………………………………………………………………………………………………………………. 28

5.3.1

Digital Input Counter ………………………………………………………………………………………………. 29

5.4

Analog Outputs …………………………………………………………………………………………………………….. 29

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5.4.1

Analog Output Voltage Connection ……………………………………………………………………….. 29

5.4.2

Analog Output Relay Connection …………………………………………………………………………… 30

5.4.3

Analog Output Actuator Connection ……………………………………………………………………… 30

5.5

Digital Outputs ……………………………………………………………………………………………………………… 30

5.5.1

Digital Output Solenoid Valve Connection …………………………………………………………….. 31

5.5.2

Digital Output Resistive Load Connection……………………………………………………………… 31

5.5.3

Digital Output Inductive Load Connection …………………………………………………………….. 31

5.6

Triac Outputs ………………………………………………………………………………………………………………… 32

6

Configuration Registers…………………………………………………………………………………………. 33

6.1

Firmware Version and Module Type (30001)………………………………………………………………. 33

6.2

Module Address (30002) ……………………………………………………………………………………………… 34

6.3

Baud Rate and Protocol (30003)………………………………………………………………………………….. 34

6.4

Counter of Received Messages (30004)………………………………………………………………………. 34

6.5

Counter of Error Messages (30006)…………………………………………………………………………….. 34

6.6

Counter of Sent Messages (30008)……………………………………………………………………………… 35

6.7

Up Time (30012) …………………………………………………………………………………………………………… 35

6.8

Hardware Version (30130) …………………………………………………………………………………………… 35

6.9

MAC Address (30131) …………………………………………………………………………………………………… 35

6.10

Device Actions (40001)…………………………………………………………………………………………………. 35

6.11

Baud Rate (40136)………………………………………………………………………………………………………… 35

6.12

Stop Bits (40137) ………………………………………………………………………………………………………….. 35

6.13

Data Bits (40138) ………………………………………………………………………………………………………….. 36

6.14

Parity Bit (40139) ………………………………………………………………………………………………………….. 36

6.15

Response Delay Time (40140) ……………………………………………………………………………………… 37

6.16

Watchdog Time (40141)……………………………………………………………………………………………….. 37

7

LocalIO Registers …………………………………………………………………………………………………… 38

7.1

Universal Input Registers……………………………………………………………………………………………… 38

7.1.1

Status of Universal Inputs Working as Digital Inputs (30017)……………………………….. 38

7.1.2

Universal Input Voltage (Current) Measure 1-8 (30071, 30073, 30075, 30077, 30079, 30087, 30089, 30091) ………………………………………………………………………………… 38

7.1.3

Universal Input Temperature Measurement 1-8 (30072, 30074, 30076, 30078, 30080, 30095, 30097, 30099) ………………………………………………………………………………… 38

7.1.4

Universal Input Resistance Measurement 1-8 (30103, 30104-30117, 30118)…….. 39

7.1.5

Universal Input Configuration 1-8 (40151-40158)…………………………………………………. 39

7.1.6

Filter Time Constant of the Universal Input 1-8 (40159-40166) …………………………… 40

7.1.7

Resolution of the Universal Inputs (40167)……………………………………………………………. 40

7.2

Digital Input Registers…………………………………………………………………………………………………… 41

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7.2.1

State of Digital Inputs (30016) ………………………………………………………………………………… 41

7.2.2

Counter 1-12 (40023, 40024-40045, 40046)…………………………………………………………. 41

7.2.3

Resetting the Counters (40022) ……………………………………………………………………………… 41

7.3

Analog Output Registers………………………………………………………………………………………………. 42

7.3.1

State of Analog Outputs Operating as Digital Outputs (40019)……………………………. 42

7.3.2

Value of 1-6 Analog Outputs (40121-40126) …………………………………………………………. 42

7.3.3

Default State of the Analog Outputs (Digital) (40144) …………………………………………… 42

7.3.4

Default State of 1-6 Analog Outputs (40145-40150) …………………………………………….. 43

7.3.5

Configuration Mode of 1-6 Analog Outputs (40168-40173)…………………………………. 43

7.3.6

Hand Control Status of Analog Outputs (30015)…………………………………………………… 43

7.3.7

Hand Control Value of 1-4 Analog Outputs (30125-30128)………………………………….. 43

7.4

Digital Output Registers ……………………………………………………………………………………………….. 44

7.4.1

State of Digital Outputs (40018) …………………………………………………………………………….. 44

7.4.2

Default State of Digital Outputs (40143)………………………………………………………………… 44

7.4.3

Hand Control Status of Digital Outputs (30015) ……………………………………………………. 44

7.5

Triac Output Registers………………………………………………………………………………………………….. 45

7.5.1

State of Triac Outputs (40018) ……………………………………………………………………………….. 45

7.5.2

Default State of Triac Outputs (40143) ………………………………………………………………….. 45

7.5.3

Value of 1-4 Triac PWM Outputs (40121-40124)…………………………………………………… 46

7.5.4

Default State of 1-4 Triac PWM Outputs (40145-40148) ………………………………………. 46

7.5.5

Configuration Mode of 1-4 Triac Outputs (40168-40171)…………………………………….. 46

7.5.6

Hand Control Status of the Triac Outputs (30015) ……………………………………………….. 46

7.6

Special Application Modes …………………………………………………………………………………………… 47

7.6.1

Special Application Modes for 4I4O-H, 4I4O-H-IP, 4U4O-H, and 4U4O-H-IP ………. 47

7.6.2

Operation Mode Registers (40176, 40180, 40184, and 40188)……………………………. 48

7.6.3

Time Value Registers (40177,40181,40185,40189)……………………………………………….. 52

7.6.4

Command Register (40020) ……………………………………………………………………………………. 52

7.6.5

Block Inputs Register (40021)…………………………………………………………………………………. 52

7.6.6

Setpoint Registers (40178, 40182, 40186, 40190) ………………………………………………… 53

7.6.7

Differential Registers (40179,40183,40187,40191)……………………………………………….. 53

8

Web Configuration ………………………………………………………………………………………………… 54

8.1

Web Server Access ……………………………………………………………………………………………………….. 54

8.2

Device Page…………………………………………………………………………………………………………………… 54

8.3

LocalIO Status and Configuration………………………………………………………………………………… 55

8.3.1

Universal Inputs ………………………………………………………………………………………………………. 55

8.3.2

Digital Inputs……………………………………………………………………………………………………………. 57

8.3.3

Digital Outputs ………………………………………………………………………………………………………… 57

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8.3.4

Analog Outputs ……………………………………………………………………………………………………….. 58

8.4

RS485 Configuration…………………………………………………………………………………………………….. 59

8.5

IP Configuration ……………………………………………………………………………………………………………. 59

8.6

Device Management …………………………………………………………………………………………………….. 60

8.7

Contact ………………………………………………………………………………………………………………………….. 61

9

List of Modbus Registers ………………………………………………………………………………………. 62

10

List of Supported Temperature Sensors ……………………………………………………………… 73

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iSMA-B-MINI/MIX Modbus User Manual
1 Introduction
The MINI and MIX series of I/O modules with RS485 and IP (2 Ethernet) have been designed for building distributed control systems using MAC36, AAC20, or another controller. Each module is equipped with the most commonly used types of I/O in building automation. Depending on the version, the device has 18 or 38 inputs and outputs, a mix of all types of I/O in one unit. All I/O modules have BTL and UL certificates. The modules with RS485 and IP (2 Ethernet) are factory-equipped with the two most popular open communication protocols: Modbus (ASCII, RTU, TCP/IP) and BACnet (MS/TP, IP), which are selected using DIP switches. Rotary switches are used to set the module address, which facilitates and accelerates the process of commissioning the system. Builtin mini USB allows for the initial configuration of the unit without external power supply. Built-in Modbus Gateway TCP/IP to Modbus ASCII/RTU enables to connect additional modules/devices that communicate via Modbus RS485. Thanks to supporting open communication standards I/O modules can be installed in both new and completed installations, as part of existing BMS. This versatile device will fit any BMS perfectly.

Figure 1. The MINI and MIX IO modules
This user manual outlines all information specific to using I/O modules in the Modbus protocol.

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iSMA-B-MINI/MIX Modbus User Manual

1.1 Revision History

Rev.

Date

1.0

28 Aug 2015

1.1

1 Feb 2016

1.2

3 Jan 2017

1.3

16 May 2017

1.4

7 Dec 2017

Description
First edition
· Information about the capacitive load relay added to the technical specifications.
· Information about load Triac Outputs added to the technical specifications.
· Description of the new MINI module 4x Triac Outputs: 4TOH and 4TO-H-IP
· MINI – 4I40-H and 4I40-H-IP Module built-in application: Change of logic in the Time relay mode. Now, the timer counts from the falling edge (it used to start counting from the rising edge).
· New gateway functionality blocking Send Modbus Error. · Tables with PT1000 and NI1000 updated with more
accurate data with new FW measuring resistance at these sensors with the accuracy of 0.1 .
· New HVAC functions: Heating and Cooling in 4U4O, based on output thermostatic control with a setpoint and differential value setting;
· New input mode for 4I4O added: Time Relay NC [ms], Time Relay NO and NC in seconds, Input Forwarding;
· New input mode added for 4U4O: Ordinary IO, Monostable Relay, Bistable Relay, Time Relay NO and NC [ms], Time Relay NO and NC in seconds, Input Forwarding, Heating, Cooling with corresponding BACnet objects and Modbus registers;
· Output for resetting to default added after input mode change in 4U4O and 4I4O;
· Improved BACnet COV Increment now can have values with the resolution of 0.1;
· BACnet COV Increment access (read/write) through USB added;
· Power LED added, flashing when the I/O watchdog is triggered;
· I/O watchdog reset after read/write registers through USB modified;
· Sensors added for detecting short circuit and disconnection, regardless of filter settings on universal inputs;
· Fixed bug with Stop bits, it was always 1.
· Hardware Version information on the main tab on the web page and in the Modbus register added
· new action in Modbus register no 0 ­ enter the bootloader · RS485 biasing control added for MINI IP modules with
hardware version >= 2.0 · www page: RS485 Biasing Resistors activating option
(appears only in MINI modules with hardware >= 2.0) · modules names on web page corrected (added -H for all
modules with hand operation switches)
· Firmware Version 6.0 released with BACnet certification · fixed out of service flags in AO, BO and TO

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Rev.

Date

1.5

5 Oct 2018

1.6

19 Feb 2020

1.7

13 Oct 2020

1.8

25 May 2022

Description
· fixed overridden flags in AO, BO and TO · fixed bug with number of counters for Binary input object
(now variable is 32 bit) · changed AO-1, BO-1, TO-1 HAND_STATUS Access to read-
only · changed resistance table for 2.2K3A1 sensor
· Corrections of typing errors in the text · Added imperial unit of measure
· New temperature sensors implemented in Celsius and Fahrenheit degrees
· New Modbus function 0x17 Read/Write Multiple registers · New Modbus function 0x2B to read the
VENDOR_NAME,MODEL_NAME, FW_VERSION, HOMEPAGE · Supporting Modbus address 0xFF for communication with
the gateway (IP module) · Improved filtering on UI · Fixed one record in sensor 30k6A1 table ­resistance 60713
to 80713 (5°C)
· Introduced an option to disable web server access by changing the HTTP port to 0;
· Corrected summary table for all modules; · Updated information about biasing resistors in MIX
modules; · General improvements and bugfixes.
Rebranded
Table 1. Revision history

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iSMA-B-MINI/MIX Modbus User Manual
2 Safety Rules
· Improper wiring of the product can damage it and lead to other hazards. Make sure that the product has been correctly wired before turning the power on.
· Before wiring or removing/mounting the product, make sure to turn the power off. Failure to do so might cause an electric shock.
· Do not touch electrically charged parts such as power terminals. Doing so might cause an electric shock.
· Do not disassemble the product. Doing so might cause an electric shock or faulty operation.
· Use the product only within the operating ranges recommended in the specification (temperature, humidity, voltage, shock, mounting direction, atmosphere, etc.). Failure to do so might cause a fire or faulty operation.
· Firmly tighten the wires to the terminal. Failure to do so might cause a fire. · Avoid installing the product in close proximity to high-power electrical devices and
cables, inductive loads, and switching devices. Proximity of such objects may cause an uncontrolled interference, resulting in an instable operation of the product. · Proper arrangement of the power and signal cabling affects the operation of the entire control system. Avoid laying the power and signal wiring in parallel cable trays. It can cause interferences in monitored and control signals. · It is recommended to power controllers/modules with AC/DC power suppliers. They provide better and more stable insulation for devices compared to AC/AC transformer systems, which transmit disturbances and transient phenomena like surges and bursts to devices. They also isolate products from inductive phenomena from other transformers and loads. · Power supply systems for the product should be protected by external devices limiting overvoltage and effects of lightning discharges. · Avoid powering the product and its controlled/monitored devices, especially high power and inductive loads, from a single power source. Powering devices from a single power source causes a risk of introducing disturbances from the loads to the control devices. · If an AC/AC transformer is used to supply control devices, it is strongly recommended to use a maximum 100 VA Class 2 transformer to avoid unwanted inductive effects, which are dangerous for devices. · Long monitoring and control lines may cause loops in connection with the shared power supply, causing disturbances in the operation of devices, including external communication. It is recommended to use galvanic separators. · To protect signal and communication lines against external electromagnetic interferences, use properly grounded shielded cables and ferrite beads. · Switching the digital output relays of large (exceeding specification) inductive loads can cause interference pulses to the electronics installed inside the product. Therefore, it is recommended to use external relays/contactors, etc. to switch such loads. The use of controllers with triac outputs also limits similar overvoltage phenomena. · Many cases of disturbances and overvoltage in control systems are generated by switched, inductive loads supplied by alternating mains voltage (AC 120/230 V). If they do not have appropriate built-in noise reduction circuits, it is recommended to use external circuits such as snubbers, varistors, or protection diodes to limit these effects.

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iSMA-B-MINI/MIX Modbus User Manual
2.1 Wiring
In most cases, I/O modules will be installed in an enclosure along with the other devices, which generate electromagnetic radiation. Relays, contactors, transformers, motor invertors, etc., are examples of such devices. Radiation can induce electrical noise into both power and signal lines, as well as direct radiation into the module. Whether or not the iSMA modules are immune to such effects, the interferences must be suppressed at their source if possible to ensure the proper functioning of the entire system. Appropriate grounding, shielding and other protective steps should be taken at the installation stage to prevent these effects. It is recommended to at least follow the rules below:
· Line power cables must be routed with spatial separation from signal and data transmission cables.
· Analog and digital signal cables should also be separated. · It is recommended to use shielded cables for analog signals, cable shields should not
be interrupted by intermediate terminals. · The shielding should be earthed directly after the cable enters the cabinet.
It is recommended to install interference suppressors when switching inductive loads (e.g., coils of contactors, relays, solenoid valves). RC snubbers or varistors are suitable for AC voltage and freewheeling diodes for DC voltage loads. The suppressing elements must be connected as close to the coil as possible.
2.2 EN 60730-1 Power Supply Considerations
· Electrical safety in the building automation and control systems is essentially based on the use of extra-low voltage which is strictly separated from the mains voltage. This low voltage is either SELV or PELV according to EN 60730-1.
· Protection against electric shock is ensured by the following measures: Limitation of voltage (low voltage AC/DC 24V supply, either SELV or PELV) Protective-separation of the SELV-system from all circuits other than SELV and PELV Simple-separation of the SELV-system from other SELV-systems, from PELVsystems and earth
· Field devices such as sensors, status contacts, and actuators connected to the lowvoltage inputs and outputs of I/O modules must comply with the requirements for SELV or PELV. The interfaces of field devices and other systems must also satisfy SELV or PELV requirements.
· If the supply of SELV or PELV circuits is obtained from supply mains of higher voltages, it shall be provided by safety transformer or a converter designed for continuous operation to supply SELV or PELV circuits.
2.3 FCC Compliance Note
Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a

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iSMA-B-MINI/MIX Modbus User Manual
particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
· Reorient or relocate the receiving antenna; · Increase the separation between the equipment and receiver; · Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected; · Consult the dealer or an experienced radio/TV technician for help.

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iSMA-B-MINI/MIX Modbus User Manual
3 Technical Specification
Power supply Voltage
Module type 8I 8I-IP 8U 8U-IP 4I4O-H 4I4O-H-IP 4U4O-H 4U4O-H-IP 4U4A-H 4U4A-H-IP 4O-H 4O-H-IP 4TO-H 4TO-H-IP MIX18 MIX18-IP MIX38 MIX38-IP Universal Inputs Temperature input
Voltage input

24 V AC/DC ± 20%

Power consumption

At 24 V DC

At 24 V AC

0.4 W

0.6 VA

1.4 W

2.1 VA

0.5 W

0.8 VA

1.5 W

2.3 VA

1.2 W

1.8 VA

2.2 W

3.3 VA

1.2 W

1.8 VA

2.2 W

3.3 VA

2.2 W

3.3 VA

3.2 W

4.8 VA

1.6 W

2.4 VA

2.6 W

3.9 VA

1.0 W

1.5 VA

2.0 W

3.0 VA

3.0 W

4.5 VA

4.4 W

6.6 VA

5.0 W

7.5 VA

7.4 W

11.1 VA

Measurement with RTDS attached Accuracy ± 0.1°C For PT1000 and NI1000 sensors use 16-bit resolution

Voltage measurement in 0-10 V DC range Input impedance 100 k Measurement accuracy ±0.1% Measurement resolution 3 mV at 12-bit and 1 mV at 16bit

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iSMA-B-MINI/MIX Modbus User Manual Current input

Resistive input

Resistance measurement method
Dry contact input
Measurement resolution
Processing time

Digital Inputs Type Max. input frequency
Analog Outputs Voltage range Max. load current

Resolution

Accuracy

Digital Outputs (relays)

Contact material

Resistive load AC1

Inductive load AC3

Capacitive load

Current measurement in 0 – 20 mA range Required external resistor 200 Measurement accuracy ±1.1% Measurement resolution 15 µA at 12-bit and 5 µA at 16bit
Measurement of resistance in 0 to 1000 k range Measurement resolution for 20 k load 20 at 12-bit and 1 at 16-bit Measurement resolution for PT1000 and NI1000 0.1 at 16-bit
Voltage divider

Output current ~1 mA

12-bit (default) or 16-bits

10 ms/channel at 12-bits 140 ms/channel at 16-bits

Dry contact

100 Hz saved in EEPROM memory

0-10 V DC

20 mA, total 60 mA load current for all outputs for MIX18, MIX18-IP, MIX38, MIX38-IP modules

12-bit

±0.5%

AgSnO2

UL compliant ratings Maximum ratings

3 A at 24 V AC 3 A at 30 V DC

3 A at 230 V AC 3 A at 30 V DC

8 VA at 24 V AC 30 W at 30 V DC

75 VA at 230 V AC 30 W at 30 V DC

50 W at LED + PS 230 VAC
100 W at fluorescent lamps with electronic ballast
75 W at CFL Compact fluorescent lamp

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Digital Outputs (relays)
4O-H and 4O-H-IP

Contact material Resistive load AC1

AgSnO2
UL compliant ratings
8 A at 230 V AC 8 A at 30 V DC

Maximum ratings
8 A at 230 V AC 8 A at 30 V DC

Inductive load AC3

37 VA at 230 V AC 90 W at 30 V DC

360 VA at 230 V AC 90 W at 30 V DC

Capacitive load

180 W at CFL Compact fluorescent lamp
120 W at LED + PS 230 V AC
240 W at fluorescent lamps with electronic ballast

Triac Outputs Continuous load per channel 0.5 A at 20 V AC up to max. 250 V AC

Peak load per channel

1.5 A at 20 V AC up to max. 250 V AC (30s)

Gate Control

Zero crossing turn ON

Frequency Range

47 to 63 Hz

Snubber

Snubberless triac

RS485 Interface RS485

Up to 128 devices

Communication protocols

Modbus RTU, Modbus ASCII or BACnet set by switch

Baud rate

From 2400 to 115200 set by switch

Address

0 to 99 set by switch

Ethernet

MIX18-IP, MIX38-IP

2x Fast Ethernet

Switch mode

Baud rate

10/100 Mb/s

8I-IP, 8U-IP, 4I4O-H-IP, 4U4O-H-IP, 4U4A-H-IP, 4O-H-IP, TO-H-IP

1x Fast Ethernet

IP Interface

Baud rate

10/100 Mb/s

USB

USB

Mini USB 2.0

Ingress protection IP

IP40

Temperature

Storage Operating

-40°C to +85°C (-40°F to 185°F) -10°C to +50°C (14°F to 122°F)

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iSMA-B-MINI/MIX Modbus User Manual

Humidity Connectors
Dimensions

Relative

5% to 95%

Type

Removable

Maximum cable size

2.5 mm2 (18 ­ 12 AWG)

Maximum tightening torque

0,35 Nm

MIX18, MIX18-IP

Width

110 mm (4.331 in)

Length

88 mm (3.4646 in)

Height

62 mm (2.441 in)

MIX38, MIX38-IP

Width

110 mm (4.331 in)

Length

160 mm (6.2993 in)

Height

62 mm (2.441 in)

MINI Series

Width

110 mm (4.331 in)

Length

37 mm (1.457 in)

Height

62 mm (2.441 in) Table 2. Technical specification

3.1 Summary Table for All Modules

Module UI DI A

DO

T Modbus

Type

O

O

RTU /

ASCII

4I4O-H

4

4

4I4O-H-IP

4

4

4O-H

4 (NC/NO-8A)

4O-H-IP

4 (NC/NO-8A)

4U4A-H 4

4

4U4A-H-IP 4

4

Modbus TCP/IP

BACnet MS/TP

BACnet IP

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4U4O-H 4

4

4U4O-H- 4

4

IP

8I

8

8I-IP

8

8U

8

8U-IP 8

4TO-H

4

4TO-H-IP

4

MIX18 5 5 4 4

MIX18-IP 5 5 4 4

MIX38 8 12 6 12

MIX38-IP 8 12 6 12

RS485 slave

Modbus gateway IP/ RS485 (works only as a master on RS485 network)

Table 3. Summary table for all modules

RS485 master slave

Modbus gateway IP/ RS485 (works only as a master on RS485 network)

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4 Hardware Specification 4.1 Dimensions 4.1.1 MINI Series Dimensions

Figure 2. The MINI series dimensions
4.1.2 MIX18 Series Dimensions

Figure 3. The MIX18 series dimensions
4.1.3 MIX38 Series Dimensions

Figure 4. The MIX38 series dimensions

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4.2 Power Supply Connection

Figure 5. AC power supply connection

Figure 6. DC power supply connection
4.3 LED Indicators 4.3.1 MIX Series Front Panels
MIX18 Top Panels

Figure 7. The MIX18 top panel

Figure 8. The MIX18-IP top panel

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MIX38 Top Panels

Figure 9. The MIX38 top panel
4.3.2 MINI Series Front Panels
MINI 8I and 8I-IP Top Panels

Figure 10. The MIX38-IP top panel

Figure 11. The 8I top panel
MINI 8U and 8U-IP Top Panels

Figure 12. The 8I-IP top panel

Figure 13. The 8U top panel

Figure 14. The 8U-IP top panel

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MINI 4I4O-H and 4I4O-H-IP Top Panels

Figure 15. The 4I4O-H top panel
MINI 4U4O-H and 4U4O-H-IP Top Panels

Figure 16. The 4I4O-H-IP top panel

Figure 17. The 4U4O-H top panel
MINI 4U4A-H and 4U4A-H-IP Top Panels

Figure 18. The 4U4O-H-IP top panel

Figure 19. The 4U4A-H top panel

Figure 20. The 4U4A-H-IP top panel

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MINI 4O-H and 4O-H-IP Top Panels

Figure 21. The 4O-H top panel
MINI 4TO-H and 4TO-H-IP Top Panels

Figure 22. The 4O-H-IP top panel

Figure 23. The 4TO-H top panel

Figure 24. The 4TO-H-IP top panel

· The power LED (ON) is on (green) if the module runs properly. · The communication LED (COM1) is on (orange) for 20 ms after sending each message.
If the module receives/sends a lot of messages, the LED can be lit continuously. · LEDs indicating the status of the universal inputs (U1-Un) are lit when the resistance
connected to the input is less than 5 k (dry contact input is active).

WARNING!
The LED also lights up when the voltage connected to the input has a very low potential.
· LEDs indicating the status of the digital inputs (I1-In) are lit when the input is active. · LEDs indicating the status of the analog outputs (A1-An) are lit when the output voltage
or PWM duty cycle is greater than 0. · LEDs indicating the status of the digital outputs (O1-On) are lit when the output is
enabled.

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4.4 RS485 Port 4.4.1 RS485 Communication Bus Connection

Figure 25. RS485 connection
4.4.2 RS485 Network Termination
Transmission line effects often present problems for data communication networks. These problems include reflections and signal attenuation. To eliminate the presence of reflections of signal from the end of the cable, the cable must be terminated at both ends with a resistor across the line adequate to its characteristic impedance. Both ends must be terminated since the propagation is bidirectional. In case of an RS485 twisted pair cable this termination is typically 120 .
4.5 Setting Module Address
To determine the address on the Modbus network, the module is equipped with two rotary switches, S1 and S2, located on the top panel of the device. It is possible to set the device address from 0 to 99. The address is set with the following formula: Address = S2 · 10 + S1 where S1 and S2 are the values of the switches. For example:

Figure 26. Setting the address in a Modbus network

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Switches set as in the figure above will set the module address to 11.

4.6 Baud Rate
The transmission baud rate is set with the S3 switch (sections 1, 2, and 3) in accordance with the following table:

1

2

3

Baud Rate

Off (0) Off (0) Off (0) Off (0) On (1) On (1) On (1) On (1)

Off (0) Off (0) On (1) On (1) Off (0) Off (0) On (1) On (1)

Off (0)

Defined by the user in the register

On (1)

76800

Off (0)

4800

On (1)

9600

Off (0)

19200

On (1)

38400

Off (0)

57600

On (1) Table 4. Baud rate selection

115200

4.7 Protocol
The protocol is selected with sections 4 and 5 of the S3 switch according to the table:

4

5

Protocol

Off (0) Off (0) On (1) On (1)

Off (0) On (1) Off (0) On (1)

Modbus RTU Modbus ASCII BACnet master BACnet slave Table 5. Protocol selection

WARNING! The BACnet slave mode does not support the discover function.

4.8 Default Settings
Register Name COUNTER

Default Value 0

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USER BAUD RATE

7680 (76800 bps)

STOP BITS

1

DATA BITS

8

PARITY BITS

0

RESPONSE DELAY

0

WATCHDOG TIME

0 (disabled)

STATE OF THE DIGITAL OUTPUTS AFTER START

0

STATE OF THE ANALOG OUTPUTS (DIGITAL) AFTER START

0

STATE OF THE ANALOG OUTPUTS AFTER START

0

UNIVERSAL INPUT CONFIGURATION

1

INPUT FILTER TIME CONSTANT

2

UNIVERSAL INPUT RESOLUTION

0

ANALOG OUTPUT CONFIGURATION

0

Only for IP modules

USERNAME PASSWORD IP ADDRESS MASK GATEWAY HTTP PORT MODBUS TCP PORT MODBUS TCP TIMEOUT RS485 TIMEOUT RS485 BIASING RESISTORS (MINI only) SEND MODBUS ERRORS BACNET ID BACNET UDP PORT

platform 1000 192.168.1.123 255.255.255.0 192.168.1.1 80 502 60s 1000ms DISABLED ENABLED 826001 47808 (0xBAC0) Table 6. Default values

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4.8.1 Restoring Default Settings
To restore the default configuration of all registers, follow the steps below:
· turn off the power supply; · set section 6 of the S3 switch to on; · turn on the power supply, the power LED will start blinking; · switch section 6 of the S3 switch to off to restore the default settings. To cancel the
reset, turn off the power, and switch section 6 of the S3 switch to the off position.

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5 Inputs and Outputs

5.1 Local I/O
The iSMA-B-MINI/MIX modules are equipped with local inputs and outputs (universal inputs, digital inputs, analog outputs, digital outputs, and triac outputs), and their quantities differ between the modules types, according to the table:

Module Type

UI

DI

AO

DO

TO

4I4O-H 4I4O-H-IP 4O-H 4O-H-IP 4U4A-H 4U4A-H-IP 4U4O-H 4U4O-H-IP 8I 8I-IP 8U 8U-IP 4TO-H 4TO-H-IP MIX18 MIX18-IP MIX38 MIX38-IP

4

4

4

4

4 (NC/NO-8A)

4 (NC/NO-8A)

4

4

4

4

4

4

4

4

8

8

8

8

4

4

5

5

4

4

5

5

4

4

8

12

6

12

8

12

6

12

Table 7. Inputs and outputs in MINI/MIX modules

5.2 Universal Inputs
Universal inputs support four types of input signals:
· voltage (0-10 V DC, input impedance 100 k); · current (0-20 mA);

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· resistance and temperature measurement (10k thermistor, a full list of supported temperature sensors is available here: List of Supported Temperature Sensors);
· dry contact (output current 1 mA).
Current measurement is realized by voltage measurement and 200 resistance. According to Ohm’s law, the current is directly proportional to the voltage, and the resistance is the constant of proportionality. (I = U / R). According to the Ohm’s law equation, for 20 mA current with 200 resistance the output voltage is 4 V. It means that the 4 V voltage measured on the universal input corresponds to 20 mA current. The result is expressed in millivolts.
5.2.1 Universal Input Voltage Connection

Figure 27. A universal input voltage connection
5.2.2 Universal Input Current Connection

Figure 28. A universal input current connection

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5.2.3 Universal Input Resistance Connection

Figure 29. A universal input resistance connection
5.2.4 Universal Input Dry Contact Connection

Figure 30. A universal input dry contact connection
5.3 Digital Inputs
Digital inputs operate as standard dry contact inputs and, additionally, as high speed pulse counters up to 100 Hz.

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Figure 31. A digital input connection
5.3.1 Digital Input Counter
A digital input can work as a counter of dry contact pulses up to 100 Hz. The connection is identical as in case of the dry contact input.
5.4 Analog Outputs
Analog outputs provide a 0-10 V DC output with maximum load up to 20 mA. They support three types of output signals: · voltage (0-10 V DC) with maximum load up to 20 mA; · digital; · Pulse Width Modulation (PWM) 0,01 Hz, 0,1 Hz, 1 Hz, 10 Hz, 100 Hz.
5.4.1 Analog Output Voltage Connection

Figure 32. An analog output voltage connection

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5.4.2 Analog Output Relay Connection
Figure 33. An analog output relay connection
5.4.3 Analog Output Actuator Connection

Figure 34. An analog output actuator connection
5.5 Digital Outputs
Digital outputs operate as relay outputs with maximum loads of: · resistive load: 3 A at 230 V AC, and 3 A at 30 V DC; · inductive load: 75 VA for 230 V AC and 30 W for 24 V DC.

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5.5.1 Digital Output Solenoid Valve Connection

Figure 35. A digital output solenoid valve connection
5.5.2 Digital Output Resistive Load Connection

Figure 36. A digital output resistive load connection
5.5.3 Digital Output Inductive Load Connection

Figure 37. A digital output inductive load connection

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5.6 Triac Outputs
Triac outputs work as typical binary outputs or in Pulse Width Modulation (PWM) mode: 0,01 Hz, 0,1 Hz, 1 Hz, 10 Hz.
Figure 38. A triac output connection

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6 Configuration Registers
WARNING! Changing the configuration parameters of the transmission will only take effect after restarting the unit (except for the registers the value of which is read from the switch).

6.1 Firmware Version and Module Type (30001)
In this register type and firmware version of the module are encoded.
A low byte contains information about the type of module in accordance with the table below:

Value

Type

8110 (0x5116) 9110 (0x5B16) 8410 (0x5416) 9410 (0x5E16) 8310 (0x5316) 9310 (0x5D16) 8510 (0x5516) 9510 (0x5F16) 8610 (0x5616) 9610 (0x6016) 8210 (0x5216) 9210 (0x5C16) 8710 (0x5716) 9710 (0x6116) 5010 (0x3216) 5110 (0x3316) 5210 (0x3416) 5310 (0x3516)

8I 8I-IP 8U 8U-IP 4I4O-H 4I4O-H-IP 4U4O-H 4U4O-H-IP 4U4A-H 4U4A-H-IP 4O-H 4O-H-IP 4TO-H 4TO-H-IP MIX18 MIX38 MIX18-IP MIX38-IP Table 8. Firmware version and module type

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The high byte contains the module firmware version multiplied by 10. For example: In the 30001 register, number 1281010 = 0x320A16, which means that it is module MIX18 (0x32) with firmware in version 1.0 (0x0A16 = 1010).

6.2 Module Address (30002)
This register contains information about the address of the Modbus module. This address is set with switches S1 and S2 (see section Setting Module Address).

6.3 Baud Rate and Protocol (30003)
The register contains information about the baud rate and type of protocol in accordance with the table below. This register reflects the state of S3 switch.

Baud rate

Protocol

Bit 0 0 0 0 0 1 1 1 1

Bit 1 0 0 1 1 0 0 1 1

Bit 2 0 1 0 1 0 1 0 1

Baud rate

Bit 3

User defined

0

76800

0

4800

1

9600

1

19200

38400

57600

115200 Table 9. Baud rate and protocol

Bit 4 0 1 0 1

Protocol Modbus RTU Modbus ASCII BACnet Master BACnet Slave

6.4 Counter of Received Messages (30004)
The 32-bit register with the number of valid Modbus messages received by the module, which was powered up last. The value is reset after the power cycle or after changing transmission parameters (speed, stop bits, parity, etc.).
6.5 Counter of Error Messages (30006)
The 32-bit register with the number of error Modbus messages received by the module, which was powered up last. The value is reset after the power cycle or after changing transmission parameters (speed, stop bits, parity, etc.).

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6.6 Counter of Sent Messages (30008)
The 32-bit register with the number of error Modbus messages received by the module, which was powered up last. The value is reset after the power cycle or after changing transmission parameters (speed, stop bits, parity, etc.).

6.7 Up Time (30012)
This 32-bit register contains module counting time in seconds from the last powering up or module reset.

6.8 Hardware Version (30130)
This 16-bit register contains the module hardware version multiplied by 10.

6.9 MAC Address (30131)
This 32-bit register contains MAC address information of the module.

6.10 Device Actions (40001)
Setting the 40001 register, according to the table below, enables 1 of 4 available actions: module reset, reloading the settings, setting to default, and entering the bootloader.

Value

Action

511 767 1023 1279

Reset Reload settings Set to default Enter bootloader
Table 10. Device actions

6.11 Baud Rate (40136)
If sections 1, 2, and 3 of the S3 switch are in off position, the baud rate is determined in accordance with this register. The baud rate is determined with the following formula:
Baud rate = register value · 10

6.12 Stop Bits (40137)
The number of stop bits is determined on the basis of this register in accordance with the following table:

Value

No. of Stop Bits

1 (default)

1

2

2

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Value

No. of Stop Bits

256

RS485 biasing*

Table 11. Stop bits

  • Bit No. 8 activates RS485 biasing resistors in order to pull-up the voltage on the RS485 bus. If the bit no. 8 is true (bit 8 = 1), RS485 biasing resistors are activated. The function is only available in MINI IP I/O modules with hardware version >= 2.0

The biasing resistors are useful in case the iSMA modules are connected with third-party devices with the same RS485 bus and communication errors appear on the network.

WARNING! Only a single device in the network can have biasing resistors activated!

Figure 39. Modbus frame

6.13 Data Bits (40138)
The number of data bits transmitted in a single byte is determined according to the following table:

Value

No. of Data Bits

7 8 (default)

7 8 Table 12. Data bits

6.14 Parity Bit (40139)
Every byte of data being transferred may have additional protection in the form of a parity bit added before the stop bit (bits).
The method of calculating the parity bit is presented in the table below:

Register Value

Type of Parity Bit

0 (default) 1 2

None Odd (number of all ones in a byte is odd) Even (number of all ones in a byte is even)

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Register Value 3 4

Always 1 Always 0 Table 13. Parity bit

Type of Parity Bit

6.15 Response Delay Time (40140)
The value of this 16-bit register determines the number of milliseconds to wait before the unit answers the question. This time is used to extend the interval between the question and answer. The default value of 0 means no delay (the answer is sent once during the transmission of 3.5 character required by the protocol Modbus RTU).
6.16 Watchdog Time (40141)
This 16-bit register specifies the time (expressed in seconds) to watchdog reset. If the module does not receive any valid message within that time, all digital and analog outputs will be set to the default state.
This feature is useful in case of an interruption in data transmission, and if, for security reasons, output states must be set to the appropriate state in order to avoid endangering the safety of persons or the property.
The default value is 0 seconds, which means the watchdog function is disabled.
If the watchdog is triggered, the power LED blinks in the specified sequence (3 blinks with 20 Hz frequency and 1-second pause).

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7 LocalIO Registers
The following sections describe the BACnet objects dedicated to inputs and outputs of the iSMA-B-MINI/MIX modules.

7.1 Universal Input Registers

7.1.1 Status of Universal Inputs Working as Digital Inputs (30017)
This 16-bit register contains information about the status of digital inputs (dry contacts). If the input is shorted to the ground, the corresponding bit value is set to 1 in accordance with the following table:

No. of Bit in Register

No. of Universal Input

0

1

1

2

2

3

3

4

4

5

5

6

6

7

7

8

Table 14. UI register operating DI for MIX38 and MIX38-IP

7.1.2 Universal Input Voltage (Current) Measure 1-8 (30071, 30073, 30075, 30077, 30079, 30087, 30089, 30091)
These 16-bit registers contain the results of measuring the voltage for each input. The result is expressed in millivolts. The results of measuring the current for each input are stored in the same registers. In such case, the current value has to be calculated according to the equation: I = register value / 200 [mA] 7.1.3 Universal Input Temperature Measurement 1-8 (30072, 30074, 30076, 30078, 30080, 30095, 30097, 30099)
In these 16-bit registers the result is expressed in Celsius degrees · 10.

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7.1.4 Universal Input Resistance Measurement 1-8 (30103, 30104-30117, 30118)
In these 16-bit registers the result is expressed in or in 0.1 units for PT1000 and NI1000 configuration. In the register with the lower number, it is the lower storage part of the result and the higher register storage part of the result.

7.1.5 Universal Input Configuration 1-8 (40151-40158)
These 16-bit registers are used to configure universal inputs in accordance with the following table:

Register Value

Description

0
1 (default) 2 3 4 5 6 7 8 9 10 16 17 18 19 20 (default US version) 21 22 23 24

Off resistance measurement (only measuring the voltage, dry contact off) Temperature sensor 10K3A1 NTC B=3975K (ºC) Temperature sensor 10K4A1 NTC B=3695K (ºC) Temperature sensor 10K NTC B=3435K Carel (ºC) Temperature sensor 20K6A1 NTC B=4262K (ºC) Temperature sensor 2,2K3A1 NTC B=3975K (ºC) Temperature sensor 3K3A1 NTC B=3975K (ºC) Temperature sensor 30K6A1 NTC B=4262K (ºC) Temperature sensor SIE1 (ºC) Temperature sensor TAC1 (ºC) Temperature sensor SAT1 (ºC) Temperature sensor Pt1000 (ºC) Temperature sensor Ni1000 (ºC) NI1000 21C (ºC) NI1000 LG (ºC) 10K Type2 NTC B=3975K (ºF) 10K Type3 NTC B=3695K (ºF) 20K NTC B=4262K (ºF) 3K NTC B=3975K (ºF) PT1000 (ºF)

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Register Value
25 26 +128 (set 7. bit of register)

Description NI1000 32F (ºF) NI1000 70F (ºF) Off voltage measurement
Table 15. UI configuration

7.1.6 Filter Time Constant of the Universal Input 1-8 (40159-40166)
These 16-bit registers contain a time constant low pass filter. The value is expressed in seconds. Valid values must be between 0 and 60 seconds. The default filter value is 2 seconds. Setting the value to 0 disables the filter.
In case of the UI shortcut or open-loop, the filter is reset and the UI value filtering is stopped.

7.1.7 Resolution of the Universal Inputs (40167)
This register is used to determine the bit resolution for each of the universal inputs.
Setting the bit to 0 sets the resolution of the converter to 12-bit. Setting the bit to 1 sets the resolution of the converter to 16-bit.

WARNING!
Setting 16-bit resolution increases the measurement time of one channel from 10 ms to 140 ms. The total time taken to measure all the channels increases from 50 ms to 700 ms.

Each input can be configured separately in accordance with the following table:

No. of Bit in Register

No. of Universal Input

0

1

1

2

2

3

3

4

4

5

5

6

6

7

7

8

Table 16. Universal inputs resolution for MIX38 and MIX38-IP

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7.2 Digital Input Registers

7.2.1 State of Digital Inputs (30016)
This 16-bit register contains the status of digital inputs. Short-circuit input to GND sets the corresponding bit in the register in accordance with the table below:

No. of Bit in the Register

No. of Digital Input

0

1

1

2

10

11

11

12

Table 17. Status of DI for MIX38 and MIX38-IP

7.2.2 Counter 1-12 (40023, 40024-40045, 40046)
The modules have 32-bit counters, one for each digital input.
The register with a lower number contains a lower byte of the counter and in the register with a higher number is stored in the higher byte of the counter.
In order to change the value of the register, write any value (called `preset’) for pulse counting registers. In special cases, the counter can be reset by entering 0. Resetting the counter is also possible with the 40022 register.

7.2.3 Resetting the Counters (40022)
Setting a true value of a particular bit of this 16-bit register results in resetting the corresponding counter (setting it to 0) in accordance with the following table:

No. of Bit in the Register

No. of Digital Input

0

1

1

2

10

11

11

12

Table 18. Resetting the counters for MIX38 and MIX38-IP

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7.3 Analog Output Registers

7.3.1 State of Analog Outputs Operating as Digital Outputs (40019)
Setting a true value of a particular bit of this 16-bit register causes setting the maximum output voltage (10 V) on the corresponding output and setting the corresponding register with analog output value (40121-40126) to 0.
Bits of the register correspond to the following analog outputs.

No. of Bit in the Register

No. of Analog Output

0

1

1

2

2

3

3

4

4

5

5

6

Table 19. AO operating as DO for MIX38 and MIX38-IP

7.3.2 Value of 1-6 Analog Outputs (40121-40126)
These 16-bit registers contain the value of analog output voltage in mV.

7.3.3 Default State of the Analog Outputs (Digital) (40144)
Setting a true value of a particular bit of this 16-bits register sets the maximum voltage (10 V) on the corresponding analog output after turning the power on or resetting the watchdog.
Bits of the register correspond to the following analog outputs:

No. of Bit in the Register

No. of Analog Output

0

1

1

2

2

3

3

4

4

5

5

6

Table 20. Default state of AO operating as DO form MIX38 and MIX38-IP

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7.3.4 Default State of 1-6 Analog Outputs (40145-40150)
These 16-bit registers contain the values of voltage in mV, which appear on the analog outputs after turning the power on or resetting the watchdog.

7.3.5 Configuration Mode of 1-6 Analog Outputs (40168-40173)
These 16-bit registers contain information about the mode of the analog outputs according to the following table:

Register Value

Description

0 (default) 1 2 3 4 5

Voltage output 0-10 V PWM 1Hz PWM 10Hz PWM 100Hz PWM 0.1Hz PWM 0.01Hz Table 21. AO type settings

7.3.6 Hand Control Status of Analog Outputs (30015)
This register is available only for modules with the manual control of analog outputs.

No. of Bit in Register

Description

0, 1

Hand status of outputs 1

2, 3

Hand status of outputs 2

4, 5

Hand status of outputs 3

6, 7

Hand status of outputs 4

Table 22. AO hand status bits

Value of the Hand Status

Status Description

0

AUTO

1

HAND CONTROL

Table 23. AO hand status value

The current value of the output in the hand mode determines registers from 30125 to 30128.

7.3.7 Hand Control Value of 1-4 Analog Outputs (30125-30128)
The registers contain a percentage value of the manual control for outputs from 1 to 4.

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7.4 Digital Output Registers

7.4.1 State of Digital Outputs (40018)
This 16-bit register contains the state of digital outputs. Setting a particular bit in the register activates the corresponding digital output according to the following table:

No. of Bit in Register

No. of Digital Output

0

1

1

2

2

3

3

4

4

5

5

6

Table 24. State of DO for MIX38 and MIX38-IP

7.4.2 Default State of Digital Outputs (40143)
This 16-bit register contains the default state of the digital output device after the start or watchdog reset. Register bits correspond to the digital outputs according to the following table:

No. of Bit in the Register

No. of Digital Output

0

1

1

2

2

3

3

4

4

5

5

6

Table 25. Default state of DO for MIX38 and MIX38-IP

7.4.3 Hand Control Status of Digital Outputs (30015)
This register is available only for modules with the manual control of outputs.

No. of Bit in the Register

Description

0, 1

Hand status of output 1

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No. of Bit in the Register

Description

2, 3

Hand status of output 2

4, 5

Hand status of output 3

6, 7

Hand status of output 4

Table 26. DO hand status bits

Value of Hand Status

Status Description

0

AUTO

2

HAND OUT = 0

3

HAND OUT = 1

Table 27. DO hand status value

7.5 Triac Output Registers

7.5.1 State of Triac Outputs (40018)
This 16-bit register contains the state of triac outputs in digital mode. Setting a particular bit in the register activates the corresponding triac output according to the following table:

No. of Bit in the Register

No. of Triac Output

0

1

1

2

2

3

3

4

Table 28. State of TO for 4TO-H and 4TO-H-IP

7.5.2 Default State of Triac Outputs (40143)
This 16-bit register contains the default state of the triac output device after the start or after resetting the watchdog.
The register bits correspond with triac outputs according to the following table:

No. of Bit in the Register

No. of Digital Output

0

1

1

2

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No. of Bit in the Register

No. of Digital Output

2

3

3

4

Table 29. Default state for 4TO-H and 4TO-H-IP

7.5.3 Value of 1-4 Triac PWM Outputs (40121-40124)
These 16-bit registers contain the value of the duty that appears on the PWM output (expressed in percents). Output working mode is defined by the CONFIGURATION mode of the triac output.

7.5.4 Default State of 1-4 Triac PWM Outputs (40145-40148)
These 16-bit registers contain the value of the duty that appears on the analog output (expressed in percents) after turning the power on or resetting the watchdog.

7.5.5 Configuration Mode of 1-4 Triac Outputs (40168-40171)
These 16-bit registers contain information about the mode of triac outputs according to the following table:

Register Value

Description

0 (default) 1 2 3 4 5

Digital Output PWM 1Hz PWM 10Hz Not supported PWM 0.1 HZ PWM 0.01Hz Table 30. TO type settings

7.5.6 Hand Control Status of the Triac Outputs (30015)
This register is available only for modules with the manual control of outputs.

No. of Bit in the Register

Description

0,1

Hand status of outputs 1

2,3

Hand status of outputs 2

4,5

Hand status of outputs 3

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No. of Bit in the Register

Description

6,7

Hand status of outputs 4

Table 31. TO hand status bits

Value of Hand Status

Status Description

0

AUTO

2

HAND OUT = 0

3

HAND OUT = 1

Table 32. TO hand status value

7.6 Special Application Modes

7.6.1 Special Application Modes for 4I4O-H, 4I4O-H-IP, 4U4O-H, and 4U4O-H-IP
The 4I4O-H, 4I4O-H-IP, 4U4O-H, 4U4O-H-IP modules have simple built-in applications, which can be used to control building devices. These applications control digital output states according to the signals from the digital input. The relation between inputs and outputs is shown in the table below, and it cannot be changed.

Digital Input

Digital Output

DI1

DO1

DI2

DO2

DI3

DO3

DI4

DO4

Table 33. Built-in application determining relations between inputs and outputs

The digital inputs in 4I4O-H, 4I4O-H-IP, 4U4O-H, 4U4O-H-IP modules can be set to work in different modes. There are dedicated registers for operation mode (40176, 40180, 40184, 40188), time parameters (40177, 40181, 40185, 40189), setpoints for heating/cooling modes (40178, 40182, 40186, 40190 4U4O-H, and 4U4O-H-IP only), and for differential value in heating/cooling modes (40179, 40183, 40187, 40191 4U4O-H and 4U4O-H-IP only).

Register

Description

40176 40177 40178

DI1 OPERATION MODE
DI1 TIME VALUE
DI1 SETPOINT (4U4O-H and 4U4O-H-IP only)

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40179
40180 40181 40182
40183
40184 40185 40186
40187
40188 40189 40190
40191

Register

Description

DI1 DIFFERENTIAL (4U4O-H and 4U4O-H-IP only)
DI2 OPERATION MODE
DI2 TIME VALUE
DI2 SETPOINT (4U4O-H and 4U4O-H-IP only)
DI2 DIFFERENTIAL (4U4O-H and 4U4O-H-IP only)
DI3 OPERATION MODE
DI3 TIME VALUE
DI3 SETPOINT (4U4O-H and 4U4O-H-IP only)
DI3 DIFFERENTIAL (4U4O-H and 4U4O-H-IP only)
DI4 OPERATION MODE
DI4 TIME VALUE
DI4 SETPOINT (4U4O-H and 4U4O-H-IP only)
DI4 DIFFERENTIAL (4U4O-H and 4U4O-H-IP only) Table 34. List of registers dedicated for special application mode

7.6.2 Operation Mode Registers (40176, 40180, 40184, and 40188)
This register contains information about the module working mode. Available modes and register values are listed in the table below:

Value

OPERATION MODE Register

0

Ordinary IO (def)

1

Monostable Relay

2

Bistable Relay

3

Time Relay NO [ms]

4

Time Relay NC [ms]

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Value

OPERATION MODE Register

5

Time Relay NO [s]

6

Time Relay NC [s]

7

Input Forwarding

8

Heating (4U4O-H and 4U4O-H-IP only)

9

Cooling (4U4O-H and 4U4O-H-IP only)

Table 35. Special application modes

The operating mode can be changed by writing the right value in the Operation Mode register.

Special modes are initialized after 3 seconds from the power-up or restart of the module (the time value needed to stabilize the operation of the analog transmitter).

With each change of the input mode, the assigned output is set to default state and the timer used in time-based modes is reset. If the recently selected operating mode is running, the output is controlled according to the new mode activated.

Ordinary IO
In this mode, the module operates as a standard IO; the inputs and the outputs are in no relation with each other.

Monostable Relay
In this mode, both the rising and the falling edge of the digital input change the output state. The action of a monostable relay can be executed remotely by changing the state of bit from false to true in the COMMAND register (40020). Outputs can by also overwritten with the DIGITAL OUTPUT register (40018), which allows remote control from BMS.

Bistable Relay
In this mode, only the rising edge of the digital input changes the output state. The action of a bistable relay can be executed remotely by changing the state of bit from false to true in the COMMAND register (40020). Outputs can be also overwritten by the DIGITAL OUTPUT register (40018 ), which allows remote control from BMS.

Time Relay NO [ms] In this mode, if the output value is false, the rising edge of the digital input sets the output to a true value. Every falling edge of the digital input starts the counter from the beginning so that the output stays in a true value for the time defined in the TIME VALUE register (expressed in milliseconds), counting from the last falling edge of the digital input. The action of the time relay can be executed remotely by changing the state from false to true in the relevant COMMAND register (40020). The outputs can be also overwritten with the register of the DIGITAL OUTPUT module (40018), which allows for remote control from BMS.

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Time Relay NC [ms] In this mode, if the output value is false, the falling edge of the digital input sets the output to a true value. Every rising edge of the digital input starts the counter from the beginning so that the output stays in true value for a time defined in the TIME VALUE register (expressed in milliseconds), counting from the last rising edge of the digital input. The action of time relay can be executed remotely by changing the state from false to true in the relevant COMMAND register (40020). Outputs can be also overwritten with the register of DIGITAL OUTPUT module (40018), which allows for remote control from BMS.
Time Relay NO [s] In this mode, if the output value is false, the rising edge of the digital input sets the output to a true value. Every falling edge on the digital input starts the counter from the beginning so that the output stays in true value for a time defined in TIME VALUE register (expressed in seconds), counting from the last falling edge of the digital input. The action of time relay can be executed remotely by changing the state from false to true in relevant COMMAND register (40020). Outputs can be also overwritten with the register of DIGITAL OUTPUT module (40018), which allows for remote control from BMS.
Time Relay NC [s] In this mode, if the output value is false, the falling edge of the digital input sets the output to a true value. Every rising edge on the digital input starts the counter from the beginning so that the output stays in true value for a time defined in the TIME VALUE register (expressed in seconds), counting from the last rising edge of the digital input. The action of time relay can be executed remotely by changing state from false to true in the relevant COMMAND register (40020). Outputs can be also overwritten with the register of DIGITAL OUTPUT module (40018), which allows for remote control from BMS.
Input Forwarding
In this mode, any signal from the input is transferred directly to the assigned output without any modifications. The operation of the input forwarding mode can be stopped with the block input function.
Heating Mode (4U4O-H and 4U4O-H-IP Only)
In this mode, the output is controlled like a typical thermostat, based on the Setpoint register and control value (input value) with differential parameter defined in the Differential register. The output signal works in 2 states, low and high.
If the control value is lower or equal with the difference between the Setpoint register and the Differential register, the output is in the low state.
If the control value is higher or equal with the sum of the Setpoint register and the Differential register, the output is in the high state.
Output in the low state:
Control value >= Setpoint + Differential
Output in the high state:
Control value <= Setpoint ­ Differential

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The algorithm of the heating mode is shown in chart below.

Figure 40. The heating mode algorithm
WARNING! In case when the temperature sensor fails (when it is disconnected or shortcut), the heating mode is not active and the output remains in the false state.
Cooling Mode (4U4O-H and 4U4O-H-IP Only) In this mode, the output is controlled like a typical thermostat on the basis of the Setpoint register and the control value (input signal) with the differential parameter defined in the Differential register. The output signal works in 2 states, low and high. If the control value is lower or equal with the difference between the Setpoint register and the Differential register, the output is in the low state. If the control value is higher or equal with the sum of the Setpoint register and Differential register, the output is in the high state. Output in the low state: Control value <= Setpoint ­ Differential Output in the high state: Control value >= Setpoint + Differential The algorithm of the cooling mode is shown in the chart below.

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Figure 41. The cooling mode algorithm

WARNING!
In case when the temperature sensor fails (if it is disconnected or shortcut), the heating mode does not work and the output remains in the false state.

7.6.3 Time Value Registers (40177,40181,40185,40189)
The registers contain time values for TIME RELAY modes. The time unit depends on the selected mode [milliseconds] or [seconds].

7.6.4 Command Register (40020)
The module is equipped with a special register called COMMAND (40020). The Command register is used to remotely execute the action (simulate light switch/PIR). The action is executed by changing the state of the relevant bit (changing from false to true). All special application modes can be executed except for Input Forwarding, Heating, and Cooling modes.

No. of Bit in the Register (40020)

Command Input Number

0

1

1

2

2

3

3

4

Table 36. Command register for special application modes

7.6.5 Block Inputs Register (40021)
The Block Inputs register is used to block the physical input signals to take action in logic. By setting a true value on the relevant bit, the module blocks the input and no action will

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be executed. Setting false value restores normal operation. The block input function does not work when the heating/cooling input mode is set.

No. of Bit in the Register (40021)

Block Input Number

0

1

1

2

2

3

3

4

Table 37. Block input register

7.6.6 Setpoint Registers (40178, 40182, 40186, 40190)
The Setpoint registers contain values which are used in heating/cooling modes (4U4O-H and 4U4O-H-IP only) as the setpoints for heating/cooling control algorithm The default Setpoint value is 21. The register stores the setpoint multiplied by 10.
7.6.7 Differential Registers (40179,40183,40187,40191)
The Differential registers contain values, which are used in heating/cooling modes (4U4OH and 4U4O-H-IP only) as the differential for heating/cooling control algorithm. Setpoint registers and Differential registers create deadband of the control values, which has no influence on the output. Deadband = (Setpoint ­ Differential, Setpoint + Differential) The default Differential value is 1. The register stores the differential multiplied by 10.

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8 Web Configuration
This section outlines all information specific to configuring IP modules in a web server.
WARNING! Please note that web configuration features are available only for IP versions for the MINI/MIX modules.
8.1 Web Server Access
All IP version modules are equipped with a built-in web server, which allows for showing the status of the module and for changing the configuration. To access the web server, open a browser, and enter the IP address of the module; the default address for a new module is 192.168.1.123. Please use the following default credentials: Username: platform Password: 1000 (by default) Note: The web server can be disabled by setting the HTTP port to 0. This option is available for firmware versions 6.5 and up.
8.2 Device Page
This page contains information about the device and its technical specification. Basic Information section includes information about the type of the module, its firmware version and uptime. The Device Specification includes information about Power Supply, Inputs/Outputs parameters, Interfaces, and mechanical parameters.

Figure 42. The 8U-IP device page

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8.3 LocalIO Status and Configuration 8.3.1 Universal Inputs
This page allows for entering the configuration parameters and showing the actual value of the universal inputs. To open this page, please navigate to the Local I/O tab and choose Universal Inputs from the submenu.
Figure 43. The 8U-IP Universal Inputs page

Figure 44. Types of sensors
The Universal Input table contains the following fields:
· Sensor type (read/write): allows for setting a different type of sensor; · Resolution (read/write): resolution measurement 12-bit/16-bit (for PT1000 and NI1000
sensors, please use 16-bit resolution); · UI Flag (read-only): the status of UI configured as dry contact input; · Disable Voltage Measurement (read/write): disables voltage measuring resistance
measurement only; · L.P. Filter Constant (read/write): the value of the time constant for low pass filter in
seconds. Valid values must be between 0 and 60 seconds (default 2s). Setting the 0 value disables the filter; · Resistance (read-only): in the range from 0 to 1000k []; · Temperature (read-only): in Celsius with the accuracy of 1 degree [°C]; · Voltage (read-only): in millivolts [mV]; · BACnet COV Increment (read/write): change of state sending threshold value.

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WARNING! To save changes, please use the “Submit” button.
Configuration of Special Application Modes This page allows for entering the configuration parameters and showing the actual value of Special application modes. To open this page, please navigate to the Local I/O tab and choose Universal Inputs from the submenu.

Figure 45. The 4U4O-IP special modes configuration

Figure 46. Special application modes
The Special Modes Configuration table contains the following fields:
· Block Input (read/write): allows for blocking a particular input (except for heating/ cooling modes);
· Input Mode (read/write): allows for selecting the Special Application Mode for a particular input (Ordinary IO in default);
· Command (read/write): execution of the Special Application Modes (except for input forwarding, heating/cooling modes);
· Mode Time (read/write): time base for time relay application modes (the unit depends on the selected mode: [ms] or [s]);
· Setpoint (read/write, 4U4O-H-IP only): setpoint value for heating/cooling modes. By default 0;
· Differential (read/write, 4U4O-H-IP only): differential value for heating/cooling modes. By default 0.

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WARNING! To save changes, please use the “Submit” button.
8.3.2 Digital Inputs
This page allows for entering the configuration parameters and showing the actual value of the digital inputs. To open this page, please navigate to the Local IO tab and choose Digital Inputs from the submenu.

Figure 47. The MIX38-IP Digital Inputs page
The Digital Input table contains the following fields: · State (read-only): actual input state · Reset Flag (read/write): reset of pulses value (leaving reset active will reset the value of
the pulses); · Counter State (read-only): the actual value of pulses saved in EEPROM; · Counter State To Set (read/write): allows for setting the value of the counter.
WARNING! To save changes, please use the “Submit” button.
8.3.3 Digital Outputs
This page allows for entering the configuration parameters and showing the actual value of the digital outputs. To open this page, please navigate to the Local I/O tab and choose the Digital Outputs from the submenu.

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Figure 48. The MIX38-IP Digital Outputs page
The Digital Output table contains the following fields: · State (read/write): the actual state of the digital output; · Default State (read/write): the output state after power-up and watchdog operation; · Hand State Output (read- only, MINI series only): manually override the status of the
switch; · Watchdog (read/write): device watchdog value in seconds.
WARNING! To save changes, please use the “Submit” button.
8.3.4 Analog Outputs
This page allows for entering the configuration parameters and showing the actual value of the analog outputs. To open this page, please navigate to the Local I/O tab and choose the Analog Outputs from the submenu.

Figure 49. The 4U4A-H-IP Analog Outputs page
The Analog Outputs table contains the following fields:
· Value (read/write): the actual value of the analog output in millivolts [mV]; · Type (read/write): the analog output operating mode voltage/PWM; · Default Value (read/write): default output value after the power-up and watchdog
operation; · Digital Output (read/write): the output status flag for the DO mode; · Default Digital Output (read/write): the default output status for the DO mode; · Watchdog (read/write): the device watchdog value in seconds;

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· Hand State Output (read-only, MINI series only): manually overrides the status of the potentiometer;
· BACnet COV Increment (read/write): change of the state sending threshold value.
WARNING! To save changes, please use the “Submit” button.
8.4 RS485 Configuration
This page allows to enter the configuration parameters and show the information of the controller’s RS485 port.

Figure 50. The RS485 configuration page
This page allows for setting parameters such as:
· Baud rate (read-only): the RS485 baud rate within the range from 2400 to 115200; · Modbus Config (read-only): the Modbus protocol type­RTU or ASCII; · Stop Bits (read/write): number of stop bits (1 or 2); · Data Bits (read/write): number of data bits transmitted in a single byte (7 or 8); · Parity Bits (read/write): transmission protection as a parity bit added before the stop
bit (bits); · RS485 Biasing Resistors: activation of the biasing resistors for MINI IP modules only,
with a hardware version >= 2.0; MIX IP modules with hardware version 3.0 and up have a hardware switch for RS485 biasing under the bottom cover; · Received Frames (read-only): number of received frames; · Transmitted Frames (read- only): number of transmitted frames; · Error Frames (read-only): number of error frames.
WARNING!
To save changes, please use the “Submit” button.

8.5 IP Configuration
This page allows for changing parameters of the Ethernet port, Modbus TCP, BACnet IP, and Foreign Device.

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Figure 51. The IP configuration page
This page allows for setting parameters such as:
· IP Address (read/write): the IP address of the controller’s Ethernet interface; · Mask (read/write): the network mask; · Gateway (read/write): the network default gateway; · Http Port (read/write): the http port; · Mac Address (read-only): the Ethernet interface MAC address; · Protocol Type (read-only): the DIP switch protocol selection; · Modbus TCP Port (read/write): the Modbus TCP port number, default 502; · Modbus Address (read- only): the Modbus device address set by rotary switches; · Modbus TCP Communication Timeout (read/write): the timeout value for TCP/IP
messages; · RS485 Timeout (read/write): the timeout value for Modbus RTU/ASCII messages, · Send Modbus Errors (read-only), enable/disable sending Modbus error messages; · BACnet ID (read/write): BACnet ID set by rotary switches, this value can be overridden
by the user; once overridden by the user, changing rotary switches will not affect the BACnet ID; · BACnet UDP port (read/write): the BACnet IP port.
WARNING!
To save changes, please first click the “Submit” button, and then the “Reboot” button.
8.6 Device Management
This page allows for changing the password and rebooting the device remotely.

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Figure 52. The Device Management page
The procedure of changing the device password: · enter current device password in the Current Device Password field; · enter the new device password in the New Device Password field; · enter the new device password again in the Confirm New Device Password field; · to confirm the password change, please click the “Submit” button; · please log out and log in again using the new password. WARNING! To reset the password to default, refer to “Restoring default settings”.
8.7 Contact
This page displays information about Manufacturer’s web page address and the e-mail address to technical support.
Figure 53. Contact page view

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9 List of Modbus Registers

Modbus Address

Decimal Address

Hex Address

Register Name

Access

Description

30001

0

30002

1

30003

2

30004

3

30006

5

30008

7

30012

11

30015

14

30016

15

30017

16

40001

0

40018

17

0x00 0x01 0x02 0x03
0x05
0x07
0x0B
0x0E 0x0F 0x10
0x00 0x11

VERSION AND MODULE TYPE

Read-only

MODULE ADDRESS Read-only (state of switch)

BAUD RATE AND PROTOCOL
(state of the switch)

Read-only

COUNTER OF RECEIVED FRAMES (32 ­ bits)

Read-only

Default state is 0
Reset at the unit start and change of transmission parameters

COUNTER OF FRAMES WITH ERROR (32 ­ bits)

Read-only

Default state is 0
Reset at the unit start and change of transmission parameters

COUNTER OF SENT FRAMES
(32 ­ bits)

Read-only

Default state is 0
Reset at the unit start and change of transmission parameters

UP TIME

Read-only

This 32-bit register contains module counting time in seconds from the last powering up or module reset

STATUS OF MANUAL OPERATION

Read-only

Status of manual operation DO, TO, and AO for MINI series modules

STATE OF DIGITAL INPUTS

Read-only

Status of digital inputs

STATE OF UNIVERSAL INPUTS
WORKING AS DIGITAL INPUTS

Read-only

Status of universal inputs operating as digital inputs

DEVICE ACTIONS

Read/write

Allows for enabling 1 of 3 device actions

STATE OF DIGITAL OUTPUTS

Read/write State of digital outputs

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Modbus Address

Decimal Address

Hex Address

Register Name

Access

Description

40019

18

40020

19

40021

20

40022

21

40023

22

40024

23

40025

24

40026

25

40027

26

40028

27

40029

28

40030

29

40031

30

40032

31

40033

32

40034

33

40035

34

40036

35

40037

36

40038

37

40039

38

40040

39

0x12
0x13
0x14
0x15
0x16 0x17 0x18 0x19 0x1A 0x1B 0x1C 0x1D 0x1E 0x1F 0x20 0x21 0x22 0x23 0x24 0x25 0x26 0x27

STATE OF ANALOG OUTPUTS
WORKING AS DIGITAL OUTPUTS

Read/write

State of analog outputs operating as digital outputs

DIGITAL INPUTS COMMAND REGISTER

Read/write

Digital inputs command register

DIGITAL INPUTS BLOCKING

Read/write

Digital inputs blocking register

COUNTER RESET

Read/write

Sets bit in register to reset the corresponding counter

COUNTER 1 LSB COUNTER 1 MSB

Read/write Memory

32-bit counters for each of the digital input counting pulses

COUNTER 2 LSB COUNTER 2 MSB

Read/write Memory

COUNTER 3 LSB COUNTER 3 MSB

Read/write Memory

COUNTER 4 LSB COUNTER 4 MSB

Read/write Memory

COUNTER 5 LSB COUNTER 5 MSB

Read/write Memory

COUNTER 6 LSB COUNTER 6 MSB

Read/write Memory

COUNTER 7 LSB COUNTER 7 MSB

Read/write Memory

COUNTER 8 LSB COUNTER 8 MSB

Read/write Memory

COUNTER 9 LSB COUNTER 9 MSB

Read/write Memory

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Modbus Address

Decimal Address

Hex Address

Register Name

Access

Description

40041

40

40042

41

40043

42

40044

43

40045

44

40046

45

30071

70

30072

71

30073

72

30074

73

30075

74

30076

75

30077

76

30078

77

30079

78

30080

79

30081

80

30082

81

30083

82

30084

83

0x28 0x29 0x2A 0x2B 0x2C 0x2D 0x46 0x47 0x48 0x49 0x4A 0x4B 0x4C 0x4D 0x4E 0x4F 0x50 0x51 0x52 0x53

COUNTER 10 LSB
COUNTER 10 MSB
COUNTER 11 LSB
COUNTER 11 MSB
COUNTER 12 LSB
COUNTER 12 MSB
UNIVERSAL INPUT VOLTAGE 1
UIVERSAL INPUT TEMPERATURE 1
UIVERSAL INPUT VOLTAGE 2
UIVERSAL INPUT TEMPERATURE 2
UIVERSAL INPUT VOLTAGE 3
UIVERSAL INPUT TEMPERATURE 3
UIVERSAL INPUT VOLTAGE 4
UIVERSAL INPUT TEMPERATURE 4
UIVERSAL INPUT VOLTAGE 5
UIVERSAL INPUT TEMPERATURE 5
UIVERSAL INPUT VOLTAGE 6
UIVERSAL INPUT TEMPERATURE 6
UIVERSAL INPUT VOLTAGE 7
UIVERSAL INPUT TEMPERATURE 7

Read/write Memory

Read/write Memory

Read/write Memory

Read-only Read-only Read-only Read-only Read-only Read-only Read-only

Voltage measurement value is expressed in mV
Formula for the current measurements:
where: U ­ register value,
200 ­ value of attached resistor
Temperature is expressed in Celsius degrees * 10
For a result, divide the register value by 10:
Selection of the type sensor is completed UNIVERSAL INPUT CONFIGURATION register from 40151 to 40158 for each input separately

Read-only

Read-only

Read-only

Read-only

Read-only

Read-only

Read-only

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DMP262en | 1st Issue rev. 8 | 05/2022

page 64 of 107

iSMA-B-MINI/MIX Modbus User Manual

Modbus Address

Decimal Address

Hex Address

Register Name

Access

30085

84

30086

85

30087

86

30088

87

30089

88

30090

89

30091

90

30092

91

30093

92

30094

93

30095

94

30096

95

30097

96

30098

97

30099

98

30100

99

30101

100

30102

101

0x54 0x55 0x56 0x57 0x58 0x59 0x5A 0x5B 0x5C 0x5D 0x5E 0x5F 0x60 0x61 0x62 0x63 0x64 0x65

UIVERSAL INPUT VOLTAGE 8
UIVERSAL INPUT TEMPERATURE 8
UIVERSAL INPUT VOLTAGE 1
UIVERSAL INPUT VOLTAGE 2
UIVERSAL INPUT VOLTAGE 3
UIVERSAL INPUT VOLTAGE 4
UIVERSAL INPUT VOLTAGE 5
UIVERSAL INPUT VOLTAGE 6
UIVERSAL INPUT VOLTAGE 7
UIVERSAL INPUT VOLTAGE 8
UIVERSAL INPUT TEMPERATURE 1
UIVERSAL INPUT TEMPERATURE 2
UIVERSAL INPUT TEMPERATURE 3
UIVERSAL INPUT TEMPERATURE 4
UIVERSAL INPUT TEMPERATURE 5
UIVERSAL INPUT TEMPERATURE 6
UIVERSAL INPUT TEMPERATURE 7
UIVERSAL INPUT TEMPERATURE 8

Read-only Read-only Read-only Read-only Read-only Read-only Read-only Read- only Read-only Read-only Read-only Read-only Read-only Read-only Read-only Read-only Read-only Read-only

Description

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DMP262en | 1st Issue rev. 8 | 05/2022

page 65 of 107

iSMA-B-MINI/MIX Modbus User Manual

Modbus Address

Decimal Address

Hex Address

Register Name

Access

Description

30103

102

30104

103

30105

104

30106

105

30107

106

30108

107

30109

108

30110

109

30111

110

30112

111

30113

112

30114

113

30115

114

30116

115

30117

116

30118

117

40121

120

40122

121

0x66 0x67 0x68 0x69 0x6A 0x6B 0x6C 0x6D 0x6E 0x6F 0x70 0x71 0x72 0x73 0x74 0x75 0x78 0x79

RESISTIVE INPUT 1 LSB

Read-only

Resistance measurement result expressed in

RESISTIVE INPUT 1 MSB

Read-only

RESISTIVE INPUT 2 LSB

Read-only

RESISTIVE INPUT 2 MSB

Read-only

RESISTIVE INPUT 3 LSB

Read-only

RESISTIVE INPUT 3 MSB

Read-only

RESISTIVE INPUT 4 LSB

Read-only

RESISTIVE INPUT 4 MSB

Read-only

RESISTIVE INPUT 5 LSB

Read-only

RESISTIVE INPUT 5 MSB

Read-only

RESISTIVE INPUT 6 LSB

Read-only

RESISTIVE INPUT 6 MSB

Read-only

RESISTIVE INPUT 7 LSB

Read-only

RESISTIVE INPUT 7 MSB

Read-only

RESISTIVE INPUT 8 LSB

Read-only

RESISTIVE INPUT 8 MSB

Read-only

VALUE OF ANALOG Read/write OUTPUT 1
VALUE OF ANALOG Read/write OUTPUT 2

Voltage at analog outputs expressed in mV within the range from 0 to 10000 mV

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DMP262en | 1st Issue rev. 8 | 05/2022

page 66 of 107

iSMA-B-MINI/MIX Modbus User Manual

Modbus Address

Decimal Address

Hex Address

Register Name

Access

Description

40123

122

40124

123

40125

124

40126

125

30125

124

30126

125

30127

126

30128

127

30130

129

30131

130

40136

135

40137

136

40138

137

40139

138

0x7A 0x7B 0x7C 0x7D 0x7C 0x7D 0x7E 0x7F 0x81 0x82 0x87
0x88 0x89 0x8A

VALUE OF ANALOG Read/write OUTPUT 3

VALUE OF ANALOG Read/write OUTPUT 4

VALUE OF ANALOG Read/write OUTPUT 5

VALUE OF ANALOG Read/write OUTPUT 6

HAND STATUS VALUE 1
HAND STATUS VALUE 2

Read-only Read-only

The current value of analog output in the hand mode for MINI with AO

HAND STATUS VALUE 3

Read-only

HAND STATUS VALUE 4

Read-only

HARDWARE_VERSIO Read-only N

The current hardware version of a device

MAC_ADDRESS (32 ­ Read-only bits)

The MAC address of a device

BAUD RATE

Read/write Memory

Transmission speed
The value is considered only when sections 1, 2, and 3 of S3 switch are in the OFF position
The default value is 7680 (76800 bps)

STOP BITS

Read/write Memory

Supported values are 1 and 2
The default value is 1

DATA BITS

Read/write Memory

Supported values are 7 and 8
The default value is 8

PARITY BIT

Read/write Memory

Parity Bit (40139) The default value is 0 (no parity)
Allowed values:

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DMP262en | 1st Issue rev. 8 | 05/2022

page 67 of 107

iSMA-B-MINI/MIX Modbus User Manual

Modbus Address

Decimal Address

Hex Address

Register Name

Access

Description

Value

Descripti on

0 (default) None

1

Odd

2

Even

3

Always 1

4

Always 0

40140

139

40141

140

40143

142

40144

143

40145

144

40146

145

40147

146

40148

147

40149

148

0x8B 0x8C
0x8E 0x8F 0x90 0x91 0x92 0x93 0x94

RESPONSE DELAY

Read/write Memory

Delay in ms before sending the response
The default value is 0

WATCHDOG TIME

Read/write Memory

Time in second before watchdog reset in case no transmission
A value of 0 disables Watchdog
The default value is 0 s

DEFAULT STATE OF DIGITAL OUTPUTS

Read/write Memory

State of digital outputs assigned at the start of the module and watchdog reset
The default value is 0

DEFAULT STATE OF ANALOG OUTPUTS (DIGITAL)

Read/write Memory

State of analog outputs assigned at the start of the module and watchdog reset
The default value is 0

DEFAULT STATE OF Read/write ANALOG OUTPUT 1 Memory
DEFAULT STATE OF Read/write ANALOG OUTPUT 2 Memory

In the registers is stored value that appears at the analog output after power on or watchdog reset.
The default value is 0

DEFAULT STATE OF Read/write ANALOG OUTPUT 3 Memory

DEFAULT STATE OF Read/write ANALOG OUTPUT 4 Memory

DEFAULT STATE OF Read/write ANALOG OUTPUT 5 Memory

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DMP262en | 1st Issue rev. 8 | 05/2022

page 68 of 107

iSMA-B-MINI/MIX Modbus User Manual

Modbus Address

Decimal Address

Hex Address

Register Name

Access

Description

40150

149

40151

150

40152

151

40153

152

40154

153

40155

154

40156

155

40157

156

40158

157

0x95 0x96 0x97 0x98 0x99 0x9A 0x9B 0x9C 0x9D

DEFAULT STATE OF Read/write ANALOG OUTPUT 6 Memory

UNIVERSAL INPUT CONFIGURATION 1
UNIVERSAL INPUT CONFIGURATION 2
UNIVERSAL INPUT CONFIGURATION 3
UNIVERSAL INPUT CONFIGURATION 4
UNIVERSAL INPUT CONFIGURATION 5
UNIVERSAL INPUT CONFIGURATION 6
UNIVERSAL INPUT CONFIGURATION 7
UNIVERSAL INPUT CONFIGURATION 8

Read/write Memory
Read/write Memory
Read/write Memory
Read/write Memory
Read/write Memory
Read/write Memory
Read/write Memory
Read/write Memory

Configuration of universal input and type of temperature sensor
The default value is 1

Valu Description /

e

Sensor

0

Resistance

measurement

off

1

10K3A1 NTC

2

10K4A1 NTC

3

10K NTC Carel

4

20K6A1 NTC

5

2,2K3A1 NTC

B=3975K

6

3K3A1 NTC

7

30K6A1 NTC

8

SIE1

9

TAC1

10

SAT1

16

Pt1000

17

Ni1000

+128

Voltage measurement off

40159

158

0x9E

FILTER TIME CONSTANT
OF THE UNIVERSAL INPUT 1

Read/write Memory

Filter time constant, expressed in seconds in the range from 0 to 60 seconds
A value of 0 disables the filter
The default value is 2 s

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DMP262en | 1st Issue rev. 8 | 05/2022

page 69 of 107

iSMA-B-MINI/MIX Modbus User Manual

Modbus Address

Decimal Address

Hex Address

Register Name

Access

Description

40160

159

40161

160

40162

161

40163

162

40164

163

40165

164

40166

165

40167

166

40168

167

0x9F 0xA0 0xA1 0xA2 0xA3 0xA4 0xA5 0xA6
0xA7

FILTER TIME CONSTANT
OF THE UNIVERSAL INPUT 2

Read/write Memory

FILTER TIME CONSTANT
OF THE UNIVERSAL INPUT 3

Read/write Memory

FILTER TIME CONSTANT
OF THE UNIVERSAL INPUT 4

Read/write Memory

FILTER TIME CONSTANT
OF THE UNIVERSAL INPUT 5

Read/write Memory

FILTER TIME CONSTANT
OF THE UNIVERSAL INPUT 6

Read/write Memory

FILTER TIME CONSTANT
OF THE UNIVERSAL INPUT 7

Read/write Memory

FILTER TIME CONSTANT
OF THE UNIVERSAL INPUT 8

Read/write Memory

RESOLUTION OF THE UNIVERSAL INPUTS

Read/write Memory

Resolution of the analog inputs. When a bit is set, the measurement at corresponding input is performed with 16-bit resolution.
By default, all the measurements are performed with 12-bit resolution.

ANALOG OUTPUT CONFIGURATION 1

Read/write Memory

Configures the mode of the analog output according to the following table:

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DMP262en | 1st Issue rev. 8 | 05/2022

page 70 of 107

iSMA-B-MINI/MIX Modbus User Manual

Modbus Address

Decimal Address

Hex Address

Register Name

Access

Description

40169

168

40170

169

40171

170

40172

171

40173

172

0xA8 0xA9 0xAA 0xAB 0xAC

ANALOG OUTPUT CONFIGURATION 2

Read/write Memory

ANALOG OUTPUT CONFIGURATION 3

Read/write Memory

ANALOG OUTPUT CONFIGURATION 4

Read/write Memory

ANALOG OUTPUT CONFIGURATION 5

Read/write Memory

ANALOG OUTPUT CONFIGURATION 6

Read/write Memory

Value

Descriptio n

0 (default)

Voltage
output 010 V

1

PWM 1 Hz

2

PWM 10 Hz

3

PWM 100 Hz

4

PWM 0.1 Hz

5

PWM 0.01

Hz

40176

175

0xAF

DIGITAL INPUT 1 CONFIGURATION MODE

Read/write Memory

Digital input configuration mode table:

Valu e

OPERATING MODE

0

Ordinary IO(def)

1

Monostable

Relay

2

Bistable Relay

3

Time Relay NO

[ms]

4

Time Relay NC

[ms]

5

Time Relay NO

[s]

6

Time Relay NC

[s]

7

Input

Forwarding

8

Heating

(4U4O-H and 4U4O-H-IP only)

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DMP262en | 1st Issue rev. 8 | 05/2022

page 71 of 107

iSMA-B-MINI/MIX Modbus User Manual

Modbus Address

Decimal Address

Hex Address

Register Name

Access

Description

40177

176

40178

177

40179

178

40180

179

40181

180

40182

181

40183

182

40184

183

40185

184

40186

185

40187

186

40188

187

40189

188

40190

189

40191

190

0xB0 0xB1 0xB2 0xB3 0xB4 0xB5

DIGITAL INPUT 1 TIME VALUE
DIGITAL INPUT 1 SETPOINT
DIGITAL INPUT 1 DIFFERENTIAL
DIGITAL INPUT 2 CONFIGURATION MODE
DIGITAL INPUT 2 TIME VALUE
DIGITAL INPUT 2 SETPOINT

Read/write Memory

Valu e

OPERATING MODE

Read/write Memory
Read/write Memory
Read/write Memory
Read/write Memory
Read/write Memory

9

Cooling

(4U4O-H and 4U4O-H-IP only)

DIGITAL INPUT TIME VALUE in [ms] or in [s] ­ depending on mode selection
SETPOINT in oC multiplied by 10
Default value = 0
DIFFERENTIAL in oC multiplied by 10
Default value = 0

0xB6

DIGITAL INPUT 2 DIFFERENTIAL

Read/write Memory

0xB7

DIGITAL INPUT 3 CONFIGURATION MODE

Read/write Memory

0XB8

DIGITAL INPUT 3 TIME VALUE

Read/write Memory

0xB9

DIGITAL INPUT 3 SETPOINT

Read/write Memory

0xBA

DIGITAL INPUT 3 DIFFERENTIAL

Read/write Memory

0xBB

DIGITAL INPUT 4 CONFIGURATION MODE

Read/write Memory

0xBC

DIGITAL INPUT 4 TIME VALUE

Read/write Memory

0xBD

DIGITAL INPUT 4 SETPOINT

Read/write Memory

0xBE

DIGITAL INPUT 4 DIFFERENTIAL

Read/write Memory

Table 38. List of Modbus registers

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DMP262en | 1st Issue rev. 8 | 05/2022

page 72 of 107

iSMA-B-MINI/MIX Modbus User Manual

10 List of Supported Temperature Sensors
· 10K3A1 · 10K4A1 · 10K Carel · 20K6A1 · 2.2K3A1 · 3K3A1 · 30K6A1 · SIE1 · TAC1 · SAT1 · PT1000 · NI1000 · NI1000 21C (ºC) · NI1000 LG (ºC) · 10K Type II NTC · 10K Type III NTC · 20K NTC · 3K NTC · NI1000 32F (ºF) · NI1000 70F (ºF) · PT1000 (ºF)

No.

1

Sensor

10K3A1

coefficient Manufacturers °C -50 -45 -40 -35 -30 -25 -20 -15 -10

3975K Aquatrol, Cylon, Honeywell, Johnson, Satchwell, Seachange 667828 491749 335671 241840 176683 131251 96974 72895 55298

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DMP262en | 1st Issue rev. 8 | 05/2022

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iSMA-B-MINI/MIX Modbus User Manual

No.

1

-5

42314

0

32650

5

25396

10

19904

15

15714

20

12494

25

10000

30

8056

35

6530

40

5325

45

4367

50

3601

55

2985

60

2487

65

2082

70

1751

75

1480

80

1256

85

1070

90

916

95

787

100

678

105

587

110

510

115

444

120

388

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DMP262en | 1st Issue rev. 8 | 05/2022

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iSMA-B-MINI/MIX Modbus User Manual

No.

1

125

340

No.

2

Sensor

10K4A1

coefficient Manufacturers °C -50 -45 -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45

3695K Andover, Delta Controls, Siebe, York 441667 330749 239831 181532 135233 105081 78930 61030 47549 37316 29490 23462 18787 15136 12268 10000 8197 6754 5594 4656

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DMP262en | 1st Issue rev. 8 | 05/2022

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iSMA-B-MINI/MIX Modbus User Manual

No.

2

50

3893

55

3271

60

2760

65

2339

70

1990

75

1700

80

1458

85

1255

90

1084

95

939

100

817

105

713

110

624

115

547

120

482

125

426

No.

3

Sensor

10K Carel

coefficient °C -50 -45 -40 -35 -30 -25

3435K 329500 247700 188500 144100 111300 86430

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DMP262en | 1st Issue rev. 8 | 05/2022

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iSMA-B-MINI/MIX Modbus User Manual

No.

3

-20

67770

-15

53410

-10

42470

-5

33900

0

27280

5

22050

10

17960

15

14690

20

12090

25

10000

30

8313

35

6940

40

5827

45

4912

50

4161

55

3536

60

3020

65

2588

70

2228

75

1924

80

1668

85

1451

90

1266

95

1108

100

973

105

857

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DMP262en | 1st Issue rev. 8 | 05/2022

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iSMA-B-MINI/MIX Modbus User Manual

No.

3

110

758

115

672

120

597

125

531

No.

4

Sensor

20K6A1

coefficient °C -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45

4262K 806800 574400 413400 300400 220600 163480 122260 92220 70140 53780 41540 32340 25340 20000 15886 12698 10212 8260

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DMP262en | 1st Issue rev. 8 | 05/2022

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iSMA-B-MINI/MIX Modbus User Manual

No.

4

50

6718

55

5494

60

4518

65

3732

70

3098

75

2586

80

2166

85

1823

90

1541

95

1308

100

1114

105

953

110

818

115

704

120

609

125

528

115

444

120

388

125

340

No.

5

Sensor

2.2K3A1

coefficient Manufacturers °C -50 -45

3975K Ambiflex, Johnson 150395 112994

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DMP262en | 1st Issue rev. 8 | 05/2022

page 79 of 107

iSMA-B-MINI/MIX Modbus User Manual

No.

5

-40

75593

-35

57691

-30

39789

-25

30814

-20

21839

-15

16416

-10

12453

-5

9529

0

7353

5

5719

10

4482

15

3539

20

2814

25

2252

30

1814

35

1471

40

1199

45

983

50

810

55

672

60

560

65

468

70

394

75

333

80

282

85

241

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iSMA-B-MINI/MIX Modbus User Manual

No.

5

90

206

95

177

100

152

105

132

110

114

115

100

120

88

125

77

No.

6

Sensor

3K3A1

coefficient Manufacturers °C -50 -45 -40 -35 -30 -25 -20 -15 -10 -5 0 5 10

3975K Alerton 200348 150524 100701 76853 53005 41048 29092 21868 16589 12694 9795 7619 5971

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DMP262en | 1st Issue rev. 8 | 05/2022

page 81 of 107

iSMA-B-MINI/MIX Modbus User Manual

No.

6

15

4714

20

3748

25

3000

30

2417

35

1959

40

1598

45

1310

50

1080

55

896

60

746

65

625

70

526

75

444

80

377

85

321

90

275

95

236

100

204

105

176

110

153

115

133

120

117

125

102

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page 82 of 107

iSMA-B-MINI/MIX Modbus User Manual

No.

7

Sensor

30K6A1

coefficient Manufacturers °C -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75

4262K Drayton 622911 477393 331876 245785 183697 138502 105305 80713 62347 48511 38019 30000 23828 19046 15317 12390 10079 8243 6777 5600 4650 3879

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DMP262en | 1st Issue rev. 8 | 05/2022

page 83 of 107

iSMA-B-MINI/MIX Modbus User Manual

No.

7

80

3251

85

2737

90

2313

95

1963

100

1672

105

1430

110

1228

115

1058

120

915

125

793

No.

8

Sensor

SIE1

Manufacturers °C -50 -45 -40 -35 -30 -25 -20 -15 -10 -5 0 5

Barber Colman, Siebe 10732 10624 10517 10344 10172 9913 9654 9320 8933 8496 8044 7489

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DMP262en | 1st Issue rev. 8 | 05/2022

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iSMA-B-MINI/MIX Modbus User Manual

No.

8

10

6938

15

6370

20

5798

25

5238

30

4696

35

4185

40

3707

45

3271

50

2875

55

2521

60

2206

65

1929

70

1685

75

1472

80

1287

85

1127

90

986

95

866

100

760

105

670

110

590

115

522

120

462

125

410

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DMP262en | 1st Issue rev. 8 | 05/2022

page 85 of 107

iSMA-B-MINI/MIX Modbus User Manual

No.

9

Sensor

TAC1

coefficient Manufacturers °C -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65

3500K TAC 39024 29358 22284 17073 13192 10276 8068 6382 5085 4078 3294 2676 2188 1800 1488 1237 1034 869 733 622 529 453

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DMP262en | 1st Issue rev. 8 | 05/2022

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iSMA-B-MINI/MIX Modbus User Manual

No.

9

70

389

75

335

80

290

85

252

90

220

95

192

100

169

105

149

110

131

115

116

120

103

125

92

No.

10

Sensor

SAT1

Manufacturers °C -50 -45 -40 -35 -30 -25 -20 -15 -10 -5

Satchwell 9719 9652 9584 9467 9349 9159 8968 8708 8396 8031

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page 87 of 107

iSMA-B-MINI/MIX Modbus User Manual

No.

10

0

7614

5

7150

10

6649

15

6121

20

5580

25

5039

30

4513

35

4012

40

3545

45

3117

50

2730

55

2386

60

2082

65

1816

70

1585

75

1385

80

1213

85

1064

90

937

95

828

100

734

105

654

110

585

115

525

120

474

125

429

www.ismacontrolli.com

DMP262en | 1st Issue rev. 8 | 05/2022

page 88 of 107

iSMA-B-MINI/MIX Modbus User Manual

No.

11

Sensor

PT1000

Manufacturers °C -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170

Honeywell, Sauter, Serck, Siebe, Cylon 803.1 842.7 882.2 921.6 960.9 1000.0 1039.0 1077.9 1116.7 1155.4 1194.0 1232.4 1270.8 1309.0 1347.1 1385.1 1422.9 1460.7 1498.3 1535.8 1573.3 1610.5 1647.7

www.ismacontrolli.com

DMP262en | 1st Issue rev. 8 | 05/2022

page 89 of 107

iSMA-B-MINI/MIX Modbus User Manual

No.

11

180

1684.8

190

1721.7

200

1758.6

210

1795.3

220

1831.9

230

1868.4

240

1904.7

250

1941.0

260

1977.1

270

2013.1

280

2049.0

290

2084.8

300

2120.5

310

2156.1

320

2191.5

330

2226.8

340

2262.1

350

2297.2

360

2332.1

370

2367.0

380

2401.8

390

2436.4

400

2470.9

No.

12

Sensor

NI1000

Manufacturers Sauter

www.ismacontrolli.com

DMP262en | 1st Issue rev. 8 | 05/2022

page 90 of 107

iSMA-B-MINI/MIX Modbus User Manual

No.

12

°C

-50

742.6

-40

791.3

-30

841.5

-20

893.0

-10

945.8

0

1000.0

10

1055.5

20

1112.4

30

1170.6

40

1230.1

50

1291.1

60

1353.4

70

1417.2

80

1482.5

90

1549.4

100

1617.8

110

1687.9

120

1759.8

130

1833.4

140

1909.0

150

1986.6

No.

13

Sensor

NI1000 21C (ºC)

Manufacturers °C

Distech

www.ismacontrolli.com

DMP262en | 1st Issue rev. 8 | 05/2022

page 91 of 107

iSMA-B-MINI/MIX Modbus User Manual

No.

13

-40

699,3

-30

745,5

-20

792,8

-10

841,2

0

891,0

10

942,0

20

994,3

30

1047,8

40

1102,6

50

1158,5

60

1215,8

70

1274,3

80

1334,4

90

1407,8

100

1473,1

110

1524,0

No.

14

Sensor

NI1000 LG (ºC)

Manufacturers °C -50 -40 -30 -20 -10 0

LG 790,9 830,8 871,7 913,5 956,2 1000,0

www.ismacontrolli.com

DMP262en | 1st Issue rev. 8 | 05/2022

page 92 of 107

iSMA-B-MINI/MIX Modbus User Manual

No.

14

10

1044,8

20

1090,7

30

1137,6

40

1185,7

50

1235,0

60

1285,4

70

1337,1

80

1390,1

90

1444,4

100

1500,0

110

1557,0

120

1615,4

130

1675,2

140

1736,5

150

1799,3

No.

15

Sensor

10K Type II NTC

coefficient Manufacturers °F -40 -35 -30 -25 -20 -15

3975K Alerton 336095 279921 233942 196184 165062 139324

www.ismacontrolli.com

DMP262en | 1st Issue rev. 8 | 05/2022

page 93 of 107

iSMA-B-MINI/MIX Modbus User Manual

No.

15

-10

117968

-5

100192

0

85346

5

72910

10

62464

15

53660

20

46222

25

39919

30

34563

35

30001

40

26104

45

22767

50

19903

55

17439

60

15313

65

13476

70

11884

75

10501

80

9298

85

8249

90

7333

95

6530

100

5826

105

5208

110

4663

115

4182

www.ismacontrolli.com

DMP262en | 1st Issue rev. 8 | 05/2022

page 94 of 107

iSMA-B-MINI/MIX Modbus User Manual

No.

15

120

3757

125

3381

130

3047

135

2751

140

2487

145

2252

150

2042

155

1855

160

1687

165

1536

170

1401

175

1279

180

1169

185

1070

190

981

195

901

200

827

205

761

210

701

215

646

220

597

225

551

230

510

235

472

240

438

245

406

www.ismacontrolli.com

DMP262en | 1st Issue rev. 8 | 05/2022

page 95 of 107

iSMA-B-MINI/MIX Modbus User Manual

No.

15

250

377

No.

16

Sensor

10K Type III NTC

coefficient Manufacturers °F -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55

3695K Andowver 239831 203801 173631 148378 127139 109226 94078 81235 70317 61012 53063 46255 40411 35382 31046 27298 24051 21234 18782 16646

www.ismacontrolli.com

DMP262en | 1st Issue rev. 8 | 05/2022

page 96 of 107

iSMA-B-MINI/MIX Modbus User Manual

No.

16

60

14780

65

13148

70

11717

75

10459

80

9353

85

8378

90

7517

95

6755

100

6080

105

5481

110

4948

115

4474

120

4051

125

3673

130

3335

135

3032

140

2761

145

2517

150

2297

155

2100

160

1921

165

1760

170

1615

175

1453

180

1363

185

1255

www.ismacontrolli.com

DMP262en | 1st Issue rev. 8 | 05/2022

page 97 of 107

iSMA-B-MINI/MIX Modbus User Manual

No.

16

190

1156

195

1066

200

985

205

910

210

842

215

780

220

723

225

671

230

623

235

580

240

540

245

503

250

469

No.

17

Sensor

20K NTC

coefficient Manufacturers °F -40 -35 -30 -25 -20 -15 -10 -5

4262K Honeywell 817605 674624 558679 464299 387186 323956 271927 228972

www.ismacontrolli.com

DMP262en | 1st Issue rev. 8 | 05/2022

page 98 of 107

iSMA-B-MINI/MIX Modbus User Manual

No.

17

0

193390

5

163823

10

139177

15

118571

20

101293

25

86764

30

74511

35

64152

40

55369

45

47904

50

41543

55

36109

60

31457

65

27464

70

24029

75

21068

80

18509

85

16294

90

14372

95

12700

100

11244

105

9974

110

8862

115

7888

120

7034

125

6282

www.ismacontrolli.com

DMP262en | 1st Issue rev. 8 | 05/2022

page 99 of 107

iSMA-B-MINI/MIX Modbus User Manual

No.

17

130

5620

135

5036

140

4519

145

4062

150

3657

155

3297

160

2976

165

2691

170

2436

175

2209

180

2005

185

1823

190

1659

195

1512

200

1379

205

1260

210

1153

215

1055

220

967

225

888

230

816

235

750

240

691

245

637

250

588

www.ismacontrolli.com

DMP262en | 1st Issue rev. 8 | 05/2022

page 100 of 107

iSMA-B-MINI/MIX Modbus User Manual

No.

18

Sensor

3K NTC

coefficient °F -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70

3975K 100618 83827 70079 58783 49468 41763 35367 30042 25593 21866 18735 16096 13865 11975 10369 9000 7831 6830 5971 5232 4594 4043 3565

www.ismacontrolli.com

DMP262en | 1st Issue rev. 8 | 05/2022

page 101 of 107

iSMA-B-MINI/MIX Modbus User Manual

No.

18

75

3150

80

2789

85

2475

90

2200

95

1959

100

1748

105

1562

110

1399

115

1254

120

1127

125

1014

130

914

135

825

140

746

145

676

150

613

155

556

160

506

165

461

170

420

175

384

180

351

185

321

190

294

195

270

200

248

www.ismacontrolli.com

DMP262en | 1st Issue rev. 8 | 05/2022

page 102 of 107

iSMA-B-MINI/MIX Modbus User Manual

No.

18

205

228

210

210

215

194

220

179

225

165

230

153

235

142

240

131

245

122

250

113

No.

19

Sensor

NI1000 32F (ºF)

Manufacturers °F -40 -30 -20 -10 0 10 20 30 40 50 60 70

Distech 791,3 818,9 847,1 875,6 904,6 933,9 963,7 993,9 1024,5 1055,5 1086,9 1118,7

www.ismacontrolli.com

DMP262en | 1st Issue rev. 8 | 05/2022

page 103 of 107

iSMA-B-MINI/MIX Modbus User Manual

No.

19

80

1151,0

90

1183,6

100

1216,7

110

1250,2

120

1284,1

130

1318,5

140

1353,4

150

1388,5

160

1424,2

170

1460,3

180

1497,0

190

1534,1

200

1571,7

210

1609,8

220

1648,4

230

1687,9

240

1727,3

250

1767,6

No.

20

Sensor

NI1000 70F (ºF)

Manufacturers °F -40 -30 -20 -10

Distech 699,3 724,8 750,7 776,9

www.ismacontrolli.com

DMP262en | 1st Issue rev. 8 | 05/2022

page 104 of 107

iSMA-B-MINI/MIX Modbus User Manual

No.

20

0

803,4

10

830,3

20

857,7

30

885,4

40

913,5

50

942,0

60

970,9

70

1000,2

80

1029,9

90

1059,9

100

1090,3

110

1121,1

120

1152,2

130

1183,8

140

1215,8

150

1248,1

160

1280,9

170

1314,2

180

1347,9

190

1382,0

200

1417,0

210

1452,0

220

1487,0

230

1524,0

240

1560,0

250

1597,0

www.ismacontrolli.com

DMP262en | 1st Issue rev. 8 | 05/2022

page 105 of 107

iSMA-B-MINI/MIX Modbus User Manual

No.

21

Sensor

PT1000 (ºF)

Manufacturers °F -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180

Distech 842,7 864,7 886,6 908,5 930,3 952,2 973,9 995,7 1017,4 1039,0 1060,7 1082,2 1103,8 1125,3 1146,8 1168,3 1189,7 1211,1 1232,4 1253,7 1275,0 1296,2 1317,4

www.ismacontrolli.com

DMP262en | 1st Issue rev. 8 | 05/2022

page 106 of 107

iSMA-B-MINI/MIX Modbus User Manual

No.

21

190

1338,6

200

1359,7

210

1380,8

220

1401,8

230

1422,9

240

1443,8

250

1464,8

www.ismacontrolli.com

DMP262en | 1st Issue rev. 8 | 05/2022

page 107 of 107

References

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