neptronic CMMB106 Remote I and O Communication Module Instruction Manual

: July 20, 2024
: neptronic

Table of Contents

neptronic CMMB106 Remote I and O Communication Module
Features
Technical Specifications
Connections and Configurations
Modbus Registers
References
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neptronic CMMB106 Remote I and O Communication Module

Specifications

Model: CMMB106
Input Voltage: 24 Vac or 27-33 Vdc
Consumption: 5VA (331mA @ 24 Vac)
Universal Inputs: 8 [0.00-10.00Vdc, 10K/20K/30K, on/off (dry contact), 4.00-20.00mA]
Digital Inputs: 2 [normally open/closed or direct/reverse]
Universal Outputs: 2 [0-10Vdc, pulsed signal (20mA drive), on/off, 4-20mA]
Analog Outputs: 2 [0-10Vdc]
Digital Relay Outputs: 4
BACnet and Modbus Communication
Operational Temperature: A = 6.30 / 160 mm, B = 5.00 / 126 mm, C = 2.25 / 57 mm

Product Usage Instructions
Connections and Configurations
Please follow the below instructions for setting up the connections and configurations of the CMMB106:

MAC Address (DS2): Set the DIP switches to calculate the MAC address.
End of Line (JP3/JP4): Set to 120 Ohms.
Network Port (TB10): A+: BACnet/Modbus A+, B-: BACnet/Modbus B-.
Universal Inputs (TB12-15): Selectable inputs from AI1 to AI8.
Digital Inputs (TB16): Configurable inputs DI1 and DI2.
Voltage Input (TB17): COM: Common, 24V: 24 Vac or 27-33 Vdc.

FAQ
How do I configure the MAC address?
To configure the MAC address, set the DIP switches representing binary logic to calculate the MAC address. The default setting is all switches OFF.

Models
CMMB106

Description
The CMMB extends your BACnet or Modbus network when your application requires additional inputs and outputs on a physical controller. Combining the 20 inputs and outputs of the CMMB with your Building Automation System provides simple expansion of a new or existing controller and reduces unnecessary costs of additional components.

Features

Power & Communication

24Vac or 30Vdc supply
BACnet® MS/TP or Modbus communication port (selectable)

Inputs & Outputs

8 universal inputs
2 digital inputs
2 universal outputs (supervised)
2 analog outputs (supervised)
6 digital outputs (supervised)

Installation

10 override switches to manually control each output
LED status indication of each input and output
DIN rail mounting
Removable, non-strip, raising clamp terminals

Network Communication

BACnet® MS/TP or Modbus communication port (selectable via DIP switch)
Select MAC address via DIP switch or via network BACnet®
MS/TP @ 9600, 19200, 38400 or 76800 bps
Automatic baud rate detection
Automatic device instance configuration
Copy & broadcast configuration to other CMMB modules

Modbus

Modbus @ 9600, 19200, 38400 or 57600 bps
RTU Slave, 8 bits (configurable parity and stop bits)
Connects to any Modbus master

Technical Specifications

Connections and Configurations

Specifications	CMMB106
Input Voltage	24 Vac or 27-33 Vdc
Consumption	5VA (331mA @ 24 Vac)
Universal Inputs	8 [0.00-10.00Vdc, 10KΩ/20KΩ/30KΩ, on/off (dry contact),

4.00-20.00mA] / 12b hardware resolution with oversampling
Digital Inputs| 2 [normally open/closed or direct/reverse]
Universal Outputs| 2 [0-10Vdc, pulsed signal (20mA drive), on/off, 4-20mA] / 1mV resolution
Analog Outputs| 2 [0-10Vdc] / 1mV resolution
Digital Relay Outputs| 6 [normally open/closed, independent common per relay, 5A resistive]
BACnet| BACnet® MS/TP @ 9600, 19200, 38400 or 76800 bps (BAS-C)
Modbus| Modbus RTU slave @ 9600, 19200, 38400 or 57600. Selectable parity and stop bit configuration:

No parity, 2 stop bit
Even parity, 1 stop bit
Odd parity, 1 stop bit

Please note that all jumper settings must also be set to the same value through BACnet. Some additional configurations are only available through BACnet (see Network Conditions on page 4).

$neptronic-CMMB106-Remote-I-and-O-Communication-Module- $4$$ MAC Address DIP Switch (DS2)
MAC address for BACnet and Modbus communication, are selectable by DIP switch DS2 using binary logic. BACnet

Highest MAC address is 254.
Default is all switches OFF = MAC address 0
If you do not change device instance in program mode, it will be automatically modified according to the MAC address.

MAC Address| DS.1 = 1| DS.2 = 2| DS.3 = 4| DS.4 = 8| DS.5 = 16| DS.6 = 32| DS.7 = 64| DS.8 = 128| Default Device Instance
---|---|---|---|---|---|---|---|---|---
0| OFF| OFF| OFF| OFF| OFF| OFF| OFF| OFF| 153000
1| ON| OFF| OFF| OFF| OFF| OFF| OFF| OFF| 153001
2| OFF| ON| OFF| OFF| OFF| OFF| OFF| OFF| 153002
3| ON| ON| OFF| OFF| OFF| OFF| OFF| OFF| 153003
4| OFF| OFF| ON| OFF| OFF| OFF| OFF| OFF| 153004
…| …| …| …| …| …| …| …| …| …
126| OFF| ON| ON| ON| ON| ON| ON| OFF| 153126
…| …| …| …| …| …| …| …| …| …
254| OFF| ON| ON| ON| ON| ON| ON| ON| 153254

Modbus

Highest MAC address is 247.
Default is all switches OFF = MAC address 1
MAC address is binary value +1
There is no device instance for Modbus.

MAC Address| DS.1 = 1| DS.2 = 2| DS.3 = 4| DS.4 = 8| DS.5 = 16| DS.6 = 32| DS.7 = 64| DS.8 = 128
---|---|---|---|---|---|---|---|---
0+1 = 1| OFF| OFF| OFF| OFF| OFF| OFF| OFF| OFF
1+1 = 2| ON| OFF| OFF| OFF| OFF| OFF| OFF| OFF
2+1 = 3| OFF| ON| OFF| OFF| OFF| OFF| OFF| OFF
3+1 = 4| ON| ON| OFF| OFF| OFF| OFF| OFF| OFF
4+1 = 5| OFF| OFF| ON| OFF| OFF| OFF| OFF| OFF
…| …| …| …| …| …| …| …| …
126+1 = 127| OFF| ON| ON| ON| ON| ON| ON| OFF
…| …| …| …| …| …| …| …| …
246+1 = 247| OFF| ON| ON| OFF| ON| ON| ON| ON

LEDs

Power
On = Input voltage normal
Off = No power

Status

Flashing = Normal operation (watchdog)

RX/TX (BACnet)

Flashing = Receiving (RX) and/or transmitting (TX) data.

RX/TX (Modbus)

Flashing = Receiving (RX) and/or transmitting (TX) data.

Input Status

On = Input on
Off = Input off
Flashing = Input not connected (thermistor setting only)
Analog = When Universal Inputs are set to analog values (Vdc, mA, or 10KΩ); the LED intensity corresponds to the input value.
For example: At 10Vdc, the LED will be fully on. At 5Vdc, the LED will be at 50% intensity. At 0 Vdc, the LED will be off.

Output Status

On = Activated
Off = Deactivated
Flashing = Output pulsed
Analog = When Universal and Analog outputs are set to analog values (Vdc or mA); the LED intensity corresponds to the output value. For example: At 10Vdc, the LED will be fully on. At 5Vdc, the LED will be at 50% intensity. At 0 Vdc, the LED will be off.

Network Conditions
Please note that all jumper settings must also be set to the same value through BACnet or Modbus. The following is a list of conditions and additional BACnet or Modbus objects.
Universal Inputs (AI1-AI8)

When the jumper is set to Thermistor, you can select either °C or °F or you can set the input as a digital on/off input.
If the universal input is set as a digital on/off input, you can also set the polarity to direct or reverse. For example, in Reverse an “on” signal would be recognized as an “off” signal.
When the jumper is set to 0-10 Vdc, you can also set the range to 0-5 Vdc.

Digital Inputs (DI1-DI2)

You can set the polarity to direct or reverse. For example, in Reverse an “on” signal would be recognized as an “off” signal.

Universal/Analog Outputs (AO1-AO4)

You can set the polarity to direct or reverse. For example, in reverse the output range would be 10-0 Vdc instead of 0-10 Vdc.

The polarity applies to all settings 0-10Vdc, 4-20mA, on/off and pulsed.

You can also set the outputs to pulsed or digital on/off.
A fixed output value can only be modified via BACnet when the override switch is in the “Automatic” position.

Digital Outputs (DO1-DO6)

A fixed output (open/closed) can only be modified via BACnet when the override switch is in the “Automatic” position.
The displayed text can be set to either Open/Closed, On/Off, or Alarm/Normal (BACnet only).

Supervised Outputs

All outputs are fully supervised via BACnet. This provides the actual state of the output including any manual overrides done using the on-board switches.

Pulse Counting Feature
The pulse counting feature enables counting the number of pulses detected by the universal or digital inputs.

When an active edge is detected, the Pulse Count is incremented by 1 up to the Prescaler value. When the Prescaler value is reached, the Accumulator is incremented by 1 and the Pulse Count is reset to 0.
For digital inputs, there is a 1ms debouncing for the detection of the edge.
For universal inputs, a value that is higher than 80% of the input’s saturation confirms a high level. A value that is lower than 20% of the input’s saturation confirms a low level.
On both types of inputs, the maximum frequency is 100Hz and the minimum pulse length is 5ms/50%D.C.

$neptronic-CMMB106-Remote-I-and-O-Communication-Module- $1$$

BACnet Objects Table

ID 1| Name| Description| Writable?| *Notes ( = default)**

( † = only when UniversalInputxFunction is set to _10KType3/G )

---|---|---|---|---

AI.1

| ****

UniversalInput1

| ****

Universal input 1

mode selected by MSV.1

| ****

Out of service

| 0 to 10Volt or -40 to 100ºC (150ºC) † or

-40 to 212ºF (302ºF) † or 4 to 20mA or 0 to 1 Resolution: 0.01Volt or 0.01ºC/0.02ºF or 0.01mA or 1

**AI.2| ** UniversalInput2| **** Universal input 2

mode selected by MSV.12

| ** Out of service| 0 to 10Volt or -40 to 100ºC (150ºC) †** or

-40 to 212ºF (302ºF) † or 4 to 20mA or 0 to 1 Resolution: 0.01Volt or 0.01ºC/0.02ºF or 0.01mA or 1

**AI.3| ** UniversalInput3| **** Universal input 3

mode selected by MSV.15

| ** Out of service| 0 to 10Volt or -40 to 100ºC (150ºC) †** or

-40 to 212ºF (302ºF) † or 4 to 20mA or 0 to 1 Resolution: 0.01Volt or 0.01ºC/0.02ºF or 0.01mA or 1

**AI.4| ** UniversalInput4| **** Universal input 4

mode selected by MSV.48

| ** Out of service| 0 to 10Volt or -40 to 100ºC (150ºC) †** or

-40 to 212ºF (302ºF) † or 4 to 20mA or 0 to 1 Resolution: 0.01Volt or 0.01ºC/0.02ºF or 0.01mA or 1

**AI.5| ** UniversaInput5| **** Universal input 5

mode selected by MSV.57

| ** Out of service| 0 to 10Volt or -40 to 100ºC (150ºC) †** or

-40 to 212ºF (302ºF) † or 4 to 20mA or 0 to 1 Resolution: 0.01Volt or 0.01ºC/0.02ºF or 0.01mA or 1

**AI.6| ** UniversalInput6| **** Universal input 6

mode selected by MSV.58

| ** Out of service| 0 to 10Volt or -40 to 100ºC (150ºC) †** or

-40 to 212ºF (302ºF) † or 4 to 20mA or 0 to 1 Resolution: 0.01Volt or 0.01ºC/0.02ºF or 0.01mA or 1

**AI.7| ** UniversalInput7| **** Universal input 7

mode selected by MSV.59

| ** Out of service| 0 to 10Volt or -40 to 100ºC (150ºC) †** or

-40 to 212ºF (302ºF) † or 4 to 20mA or 0 to 1 Resolution: 0.01Volt or 0.01ºC/0.02ºF or 0.01mA or 1

**AI.8| ** UniversalInput8| **** Universal input 8

mode selected by MSV.60

| ** Out of service| 0 to 10Volt or -40 to 100ºC (150ºC) †** or

-40 to 212ºF (302ºF) † or 4 to 20mA or 0 to 1 Resolution: 0.01Volt or 0.01ºC/0.02ºF or 0.01mA or 1

( † = only when UniversalInputxFunction is set to _10KType3/G )

---|---|---|---|---
AV.52| AnalogOutput1Min| Min. voltage of analog output 1| Present Value| 0 Volt to AV.54 | Resolution 0.1 Volt
AV.53| AnalogOutput2Min| Min. voltage of analog output 2| Present Value| 0 Volt to AV.55 | Resolution 0.1 Volt
AV.54| AnalogOutput1Max| Max. voltage of analog output 1| Present Value| AV.52 to 10.0 Volt | Resolution 0.1 Volt
AV.55| AnalogOutput2Max| Max. voltage of analog output 2| Present Value| AV.53 to 10.0 Volt | Resolution 0.1 Volt
AV.72| AnalogOutput1| Analog output 1 value| Present Value| 0-100% | Resolution 0.1%
AV.73| AnalogOutput2| Analog output 2 value| Present Value| 0-100% | Resolution 0.1%
AV.118| AnalogOutput3Min| Min. voltage of analog output 3| Present Value| 0 Volt to AV.120 | Resolution 0.1 Volt
AV.119| AnalogOutput4Min| Min. voltage of analog output 4| Present Value| 0 Volt to AV.121 | Resolution 0.1 Volt
AV.120| AnalogOutput3Max| Max. voltage of analog output 3| Present Value| AV.118 to 10.0 Volt | Resolution 0.1 Volt
AV.121| AnalogOutput4Max| Max. voltage of analog output 4| Present Value| AV.119 to 10.0 Volt | Resolution 0.1 Volt
AV.124| AnalogOutput3| Analog output 3 value| Present Value| 0-100% | Resolution 1%
AV.125| AnalogOutput4| Analog output 4 value| Present Value| 0-100% | Resolution 1%
AV.226| UniversalInput1Offset| Universal input 1 offset| Present Value| -5.00 to 5.00 ºC/ºF/Volt/mA (default 0*)