iSMACONTROLLI SFAR-S-8AO Modbus I-O Module Instructions

: June 9, 2024
: iSMACONTROLLI

Table of Contents

SPECIFICATION
JUMPER SETTING
TOP PANEL
ANALOG OUTPUTS
COMMUNICATION
POWER SUPPLY
TERMINALS OF THE DEVICE
Registered access
INSTALLATION GUIDELINE
CUSTOMER SUPPORT
Documents / Resources

iSMACONTROLLI SFAR-S-8AO Modbus I-O

SPECIFICATION

Power supply	Voltage	10-38 V DC; 10-28 V AC
Power consumption	2,4 W @ 24 V DC 3 V A @ 24 V AC
Temperature inputs	6x Resistive or thermocouple configurable, resolution

JUMPER SETTING

Jumper Setting

TOP PANEL

Top Panel

ANALOG OUTPUTS

COMMUNICATION

Communication

POWER SUPPLY

WARNING

Note, an incorrect wiring of this product can damage it and lead to other hazards. Make sure the product has been correctly wired before turning the power ON.
Before wiring, or removing/mounting the product, be sure to turn the power OFF. Failure to do so might cause electric shock.
Do not touch electrically charged parts such as the power terminals. Doing so might cause electric shock.
Do not disassemble the product. Doing so might cause electric shock or faulty operation.
Use the product within the operating ranges recommended in the specification (temperature, humidity, voltage, shock, mounting direction, atmosphere etc.). Failure to do so might cause fire or faulty operation.
Firmly tighten the wires to the terminal. Insufficient tightening of the wires to the terminal might cause fire

TERMINALS OF THE DEVICE

Power Supply

Registered access

Modbus

| Dec| Hex| Register Name| Access|

Description

---|---|---|---|---|---
30001| 0| 0x00| Version/Type| Read|

Version and Type of the device

30002

| 1| 0x01| Switches| Read| Switches state
40003| 2| 0x02| Baud rate| Read & Write|

RS485 baud rate

40004

| 3| 0x03| Stop Bits & Data Bits| Read & Write| No of Stop bits & Data Bits
40005| 4| 0x04| Parity| Read & Write|

Parity bit

40006

| 5| 0x05| Response Delay| Read & Write| Response delay in ms
40007| 6| 0x06| Modbus Mode| Read & Write|

Modbus Mode (ASCII or RTU)

40009

32

|

0x20

|

Received packets LSR (Least Significant Reg.)

|

Read & Write

|

No of received packets

40034

| 33| 0x21| Received packets MSR (Most Significant Reg.)|

Read & Write

40035

| 34| 0x22| Incorrect packets LSR| Read & Write| No of received packets with error
40036| 35| 0x23| Incorrect packets MSR|

Read & Write

40037

| 36| 0x24| Sent packets LSR| Read & Write| No of sent packets
40038| 37| 0x25| Sent packets MSR|

Read & Write

30051

| 50| 0x32| Outputs| Read| Bit is set if value ≠ 0
40053| 52| 0x34| Analog output 1|

Read & Write

|

Value of Analog Output: in mV for voltage output (max 10240) in μA for current output 0 – 20 mA (max 20480) in ‰ for current output
4-20 mA (max 1000)

40054

| 53| 0x35| Analog Output 2| Read & Write
40055| 54| 0x36| Analog Output 3|

Read & Write

40056

| 55| 0x37| Analog Output 4| Read & Write
40057| 56| 0x38| Analog Output 5|

Read & Write

40058

| 57| 0x39| Analog Output 6| Read & Write
40059| 58| 0x3A| Analog Output 7|

Read & Write

40060

| 59| 0x3B| Analog Output 8| Read & Write
40061| 60| 0x3C| Default output 1 value|

Read & Write

| Default value of output set when power is on or when watchdog reset occurs

40062

| 61| 0x3D| Default output 2 value| Read & Write
40063| 62| 0x3E| Default output 3 value|

Read & Write

40064

| 63| 0x3F| Default output 4 value| Read & Write
40065| 64| 0x40| Default output 5 value|

Read & Write

40066

| 65| 0x41| Default output 6 value| Read & Write
40067| 66| 0x42| Default output 7 value|

Read & Write

40068

| 67| 0x43| Default output 8 value| Read & Write
40069| 68| 0x44| Output 1 setting|

Read & Write

|

Setting of output mode: 0 – output disabled

voltage outpu
current output 0-20 m
current output 4-20 mA

Caution! For the change to take effect, you must also set the jumper inside the module.

40070

| 69| 0x45| Output 2 setting| Read & Write

40071

| 70| 0x46| Output 3 setting|

Read & Write

40072| 71| 0x47| Output 4 setting|

Read & Write

40073

| 72| 0x48| Output 5 setting| Read & Write
40074| 73| 0x49| Output 6 setting|

Read & Write

40075

| 74| 0x4A| Output 7 setting| Read & Write
40076| 75| 0x4B| Output 8 setting|

Read & Write

INSTALLATION GUIDELINE

Please read the instruction before use or operating the device. In case of any questions after reading this document, please contact the iSMA CONTROLLI Support Team
(support@ismacontrolli.com).

Before wiring or removing/mounting the product, make sure to turn the power off. Failure to do so might cause an electric shock.
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.
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.
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.

Symbol Electrical installation of this product must be done in accordance with national wiring codes and conform to local regulations.

CUSTOMER SUPPORT

iSMA CONTROLLI S.p.A. – Via Carlo Levi 52, 16010 Sant’Olcese (GE) – Italy |support@ismacontrolli.com
www.ismacontrolli.com
Installation Guideline| 1
st Issue rev. 1 | 05/2022

Documents / Resources

| iSMACONTROLLI SFAR-S-8AO Modbus I-O Module [pdf] Instructions
SFAR-S-8AO Modbus I-O Module, SFAR-S-8AO, Modbus I-O Module, I-O Module, Module
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