FW MURPHY MX5 Series Interchange Comm Control Module Instruction Manual

FW MURPHY MX5 Series Interchange Comm Control Module

Product Information

Product Name: InterchangeTM Comm Control Module, MX5 Series
Manufacturer: FW Murphy Production
Controls Model: MX5 Series
Compatibility: Compatible with existing and future FW Murphy Controllers using CANbus proprietary communications
Certification: CSA C/US Listed, Class I, Div. 2 Groups B, C & D

The MX5 expansion module is designed to provide input/output capability to FW Murphy Controllers using CANbus proprietary communications. It also offers Modbus RTU RS485/RS232 for other communication requirements. The module can be added to enable Digital and Analog I/O and Thermocouple inputs for communication and monitoring by the master controller. MX5 Series offers different variations: 1. MX5 Digital Inputs/Outputs, Analog Inputs, MPU 2. MX5-A Digital Inputs/Outputs, Analog Inputs/Outputs, MPU 3. MX5-D Digital Inputs/Outputs, Analog Inputs, MPU Each variation has different input/output capabilities and can read up to 24 Digital inputs, 8-16 Digital outputs, 10 Analog inputs, 1-4 Analog outputs, and 1 mph. The MX5 module is CSA C/US Listed and suitable for Class I, Div. 2 hazardous locations.

Product Usage Instructions:

1. Before beginning installation, read and follow all installation instructions provided in the manual.
2. Ensure power is turned off before replacing or wiring modules in hazardous locations.
3. Do not disconnect equipment unless power has been switched off or the area is known to be non-hazardous.
4. Contact FW Murphy Production Controls immediately if you have any questions.
5. When installing an MX5 Expansion I/O Module, follow the wiring methods specified in Class 1, Division 2 [Article 501-4(b) of the National Electrical Code, NFPA 70] and comply with the authority having jurisdiction.
6. Use the MX5 Plug Kit (00030868) for printed terminal plugs when installing the MX5 Expansion I/O Module.
7. Refer to the installation diagram provided in the manual for guidance during installation.
8. To configure the MX5 Jumper, follow these steps: – LK2 and LK4: These jumpers provide termination resistors for the CAN communication chain. Place these jumpers only when the I/O module is the last in the communication chain. Refer to control panel drawings for designation. Remove the cover of the MX5 to access this jumper link (LK2/LK4). CAN 2 is not used, and CAN 1 is used for the data link for the communication chain. (Refer to the Communications chapter in the document for more details) Note: Ensure to refer to the complete InterchangeTM Comm Control Module, MX5 Series Installation, and Operations Manual for comprehensive instructions and guidelines.

Warranty – A limited warranty on materials and workmanship is given with this Murphy product. A copy of the warranty may be viewed or printed by going to http://www.fwmurphy.com/warranty.

Warning

• Please read the following information before installing.
• BEFORE BEGINNING INSTALLATION OF THIS FW MURPHY PRODUCT, READ AND FOLLOW ALL INSTALLATION INSTRUCTIONS.
• EXPLOSION HAZARD: SUBSTITUTION OF COMPONENTS MAY IMPAIR SUITABILITY FOR CLASS 1, DIVISION 2.
• EXPLOSION HAZARD: WHEN IN HAZARDOUS LOCATIONS, TURN OFF POWER BEFORE REPLACING OR WIRING MODULES.
• EXPLOSION HAZARD: DO NOT DISCONNECT EQUIPMENT UNLESS POWER HAS BEEN SWITCHED OFF OR THE AREA IS KNOWN TO BE NON-HAZARDOUS.
• Please contact FW Murphy Production Controls immediately if you have any questions.

FW Murphy Interchange Comm Control Module Series

The MX5 expansion module provides input/output capability to existing and future FW Murphy Controllers using CANbus proprietary communications. Modbus RTU RS485/RS232 is also provided for other communication requirements. Any mix of MX-Series modules can be added to enable Digital and Analog I/O and Thermocouple inputs for communication and monitoring by the master controller.

MX5 Digital Inputs/Outputs, Analog Inputs, MPU

• CSA C/US Listed, Class I, Div. 2 Groups B, C & D
• The MX5 module adds Digital input/output, Analog input, and magnetic pickup ability to the master controller. It can read up to 24 Digital inputs, 8 Digital outputs, 10 Analog inputs and 1 mpu.

MX5-A Digital Inputs/Outputs, Analog Inputs/Outputs, MPU

• CSA C/US Listed, Class I, Div. 2 Groups B, C & D
• The MX5 module adds Digital input/output, Analog input/output, and mpu ability to the master controller. It can read up to 24 Digital inputs, 8 Digital outputs, 10 Analog inputs, 4 Analog outputs and 1 mpu.

MX5-D Digital Inputs/Outputs, Analog Inputs, MPU

• CSA C/US Listed, Class I, Div. 2 Groups B, C & D
• The MX5 module adds Digital input/output, Analog input, and mpu ability to the master controller. It can read up to 24 Digital inputs, 16 Digital outputs, 10 Analog inputs and 1 mpu.

Product Dimensions and Mounting

Accessories

• MX5 Plug Kit (00030868) Printed Terminal Plugs for MX5 Expansion I/O Module

Specifications

• Operating Temperature: -40 to +85 C (185° F)
• Storage Temperature: -40 to +85 C (185° F)
• Power Input Voltage: 10 to 32 VDC (30W max)

MX5 Installation Instructions

When installing an MX5 Expansion I/O Module, power, I/O (Digitals, Analogs, and MPU) and communication wiring must be in accordance with Class 1, Division 2 wiring methods [Article 501-4(b) of the National Electrical Code, NFPA 70] and in accordance with the authority having jurisdiction.

Installation Diagram

MX5 Jumper Configuration

A| CANbus : Communication Link to Main I/O Module

·         LK2 and LK4: This jumper provides a termination resistor for the CAN communication chain. This jumper must be in place only when the I/O module is the last in the communication chain. See control panel drawings for designation. The cover of the MX5 must be removed to access this jumper link (LK2/LK4). CAN 2 is not used. CAN 1 is used for data links for the communication chain.

(Refer to the Communications chapter in this document)

---|---
B| RS485 Communication Port : Slave Comm. Port. (See Pictorial Above)

·        LK5: These jumpers provide termination, pick-up, and pull-down resistors for the RS485 communication chain. The PU/PD jumpers should only be in one place on the communication chain. The TR jumper must be in place only when the I/O module is the last in the communication chain. See control panel drawings for designation. The cover of the MX5 must be removed to access this jumper link (LK5).

(Refer to the Communications chapter in this document)

C| Communication Address Select Shunts : Comm Address

·        LK6: These jumpers allow designation for assigning a unique address to each MX5 that may be in the system. This allows the master controller to differentiate between the modules. For example, to name the controller address 5, place the shunts on LK1 and LK4. (Refer to the Communications chapter in this document)

---|---
D| Analog Input Select Shunts: Input Type

·        LK3: These jumpers allow designation for assigning the type of analog signal type for each individual input. For a 0-24mA place jumper on middle and top pins. For a 0-5 VDC input, remove the jumper.

Communications

• Physical Layer: The MX5 module features one asynchronous RS232 serial communication port, one asynchronous RS485 serial communication port and one CANbus 2.0B proprietary communication port.

• RS232 Interconnect: The module is equipped with screw terminals called Port 1. This connection is typically used to poll the information for a specific module using twisted shielded cable suitable for RS232 networks. The simplest form of these networks is 3-wire, half-duplex, using RX terminal 57, TX terminal 55, and GND terminal 59. The TX terminal is the TRANSMIT DATA signal; the RX terminal is the RECEIVE DATA signal; and the GND is the COMMON GROUND signal for the communication line. These signal lines will take turns transmitting and receiving depending on the device using the RS232 network at any given instant. The MX5 also provides connections for CTS and DTR signals if required for 5-wire  RS232 connections.

• RS485 Interconnect: The module is equipped with screw terminals called Port 2. This connection is typically used to poll the information for a specific module using twisted shielded pair cable with 120-ohm impedance suitable for RS485 networks. These networks are 2-wire, half-duplex, and feature an A terminal 61, B terminal 62, and SHD terminal 63 shielded ground connection. The A terminal is the + or non-inverting signal, and the B terminal is the – or inverting signal.  These signal lines will take turns transmitting and receiving depending on the device using the RS485 network at any given instant.

• Baud Rate: 9600 fixed (RS232/RS485)

• Protocol: Modbus RTU. This is a binary communication protocol. All data will be contained in unsigned 16-bit Modbus Holding Registers (addressed starting at 40001). Following the Modbus RTU specification, the Most Significant Byte in a 16-bit word is broadcast first followed by the Least Significant Byte.
  Refer to the Modbus RTU map provided in this manual for a detailed mapping of the available data and data scaling.

• CANbus 2.0 B Interconnect: The module is equipped with screw terminals called Port 3. This connection is typically used to provide the interconnections between the main control module which polls the information for a specific module using twisted shielded pair cable with 120 ohm impedance suitable for CAN networks. This network protocol is proprietary CANbus and features a HI (CAN H) terminal 64, LO (CAN L) terminal 65 connection and SHD terminal 66 shielded ground connection.

• Communication Address Select Shunts: A jumper shunt header is provided to assign a unique Modbus RTU and/or CANbus address to each expansion module that may be in the network. This allows the master controller to differentiate between the modules. Addressing is done in binary format, and each incrementing jumper increases the weight by a factor of 2.
  For example, to name the controller address 5, place the shunts on LK1 and LK4. The sum makes 5 (4+1).
  NOTE : RS485/RS232 Communication is 9600-N-8-1 for Address 0-31 and 9600-N-8-2 for Address 32-63.
  Registers start at 40,001.

• Stop Bits: The module will respond with 1 stop bit for Modbus RTU addresses 1 through 31 and 2 stop bits for addresses 32 through 63. This maintains flexibility for systems requiring 2 stop bits.

• Modbus RTU Polling Frequency: The module should be polled by the Modbus RTU Master with a delay of 30-50mS between packets, and typical response times will be < 100mS. This may vary depending on the amount of data requested on each module. Typical Modbus RTU timeout settings should be set to >= 400mS.

• PC Connection: Most commercial PCs are equipped with one RS232 serial port in the form of a 9-pin D-Sub connection. If not, USB to RS232 adapters are also readily available. Testing for RS485 traffic can be done using a PC equipped with any Modbus RTU Master software and a serial interface converter that can convert RS232 traffic to RS485. The PC in this case would serve as the Modbus RTU master in lieu of an external controller.

MX5 Expansion Module – Modbus RTU Description

Modbus

Register

| Description| Read/

Write

| Range| Data Units| Definitions
---|---|---|---|---|---
40001 –

40020

| Factory Use| R| | |

40021

| ****

Digital inputs 1-16

| ****

R

| ****

0 – 65535

| each bit position is 1

input bitmapped where bit 0 = digital input 1

|

40022

| ****

Digital inputs 17-24

| ****

R

| ****

0 – 255

| each bit position is 1

input bitmapped where bit 0 = digital input 17

|
40023| Raw count system voltage| R| 0 – 1023| A/D count| 0 = 0.0 VDC, 1023 =

5 VDC

40024| Raw count analog input 1| R| 0 – 1023| A/D count| 0 = 0.0 VDC, 1023 =

5 VDC

40025| Raw count analog input 2| R| 0 – 1023| A/D count| 0 = 0.0 VDC, 1023 =

5 VDC

40026| Raw count analog input 3| R| 0 – 1023| A/D count| 0 = 0.0 VDC, 1023 =

5 VDC

40027| Raw count analog input 4| R| 0 – 1023| A/D count| 0 = 0.0 VDC, 1023 =

5 VDC

40028| Raw count analog input 5| R| 0 – 1023| A/D count| 0 = 0.0 VDC, 1023 =

5 VDC

40029| Raw count analog input 6| R| 0 – 1023| A/D count| 0 = 0.0 VDC, 1023 =

5 VDC

Modbus

Register

| Description| Read/

Write

| Range| Data Units| Definitions
---|---|---|---|---|---
40030| Raw count analog input 7| R| 0 – 1023| A/D count| 0 = 0.0 VDC, 1023 =

5 VDC

40031| Raw count analog input 8| R| 0 – 1023| A/D count| 0 = 0.0 VDC, 1023 =

5 VDC

40032| Raw count analog input 9| R| 0 – 1023| A/D count| 0 = 0.0 VDC, 1023 =

5 VDC

40033| Raw count analog input 10| R| 0 – 1023| A/D count| 0 = 0.0 VDC, 1023 =

5 VDC

40034| Raw count analog input 11| R| 0 – 4095| A/D count| Future Use
40035| Raw count analog input 12| R| 0 – 4095| A/D count| Future Use
40036| Raw count analog input 13| R| 0 – 4095| A/D count| Future Use
40037| Raw count analog input 14| R| 0 – 4095| A/D count| Future Use
40038| Frequency input (hertz)| R| 30 – 10,000| Hz|
40039| Modbus CTS| R| 0 – 1| state of signal|
40040-

40046

| Factory Use| R| | |
40047| Analog output 1 signal| R/W| 0 – 65535| Dependent on 40051|
40048| Analog output 2 signal| R/W| 0 – 65535| Dependent on 40051|
40049| Analog output 3 signal| R/W| 0 – 65535| Dependent on 40052|
40050| Analog output 4 signal| R/W| 0 – 65535| Dependent on 40052|

40051

| ****

Analog outputs 1 & 2 type

| ****

R/W

| ****

0 – 3

| 0 = not used, 1 = 4 to 20 mA,

2 = 0 to 20 mA,

3 = 0 to 24 mA

|

40052

| ****

Analog outputs 3 & 4 type

| ****

R/W

| ****

0 – 3

| 0 = not used, 1 = 4 to 20 mA,

2 = 0 to 20 mA,

3 = 0 to 24 mA

|
40053| RTC Time – seconds| R| 0 – 59| |
40054| RTC Time – minutes| R/W| 0 – 59| |
40055| RTC Time – hours| R/W| 0 – 23| |
40056| RTC Day of week| R/W| 1 – 7| | 40057| RTC Date – day| R/W|1 – 31| |
40058| RTC Date – month| R/W| `1 – 12| |
40059| RTC Date – year| R/W| 2000 – 3000| |
40060| Clock set enable| R/W| 0 – 1| 1 = set above values into the realtime clock|

40061

| ****

Digital outputs 1-16

| ****

R/W

| ****

0 – 65535

| each bit position is 1 input, bitmapped where bit 0 = digital output 1| upper 8 bits are for optional digital output daughter card
40062| Modbus DTR| R/W| 0 – 1| set state of signal|

40063

| Digital output 1-16 status on power- up| ****

R/W

| ****

0 – 65535

| each bit position is 1 output| upper 8 bits are for optional digital output

daughter card

40064

| Digital output 1-16 status on comm. failure| ****

R/W

| ****

0 – 65535

| each bit position is 1 output| upper 8 bits are for

optional digital output daughter card

40065| Analog output 1 status on power-up| R/W| 0 – 65535| |
40066| Analog output 2 status on power-up| R/W| 0 – 65535| |
40067| Analog output 3 status on power-up| R/W| 0 – 65535| |
40068| Analog output 4 status on power-up| R/W| 0 – 65535| |
40069| Analog output 1 status on comm.

failure

| R/W| 0 – 65535| |
40070| Analog output 2 status on comm.

failure

| R/W| 0 – 65535| |
Modbus

Register

| Description| Read/

Write

| Range| Data Units| Definitions
---|---|---|---|---|---
40071| Analog output 3 status on comm.

failure

| R/W| 0 – 65535| |
40072| Analog output 4 status on comm.

failure

| R/W| 0 – 65535| |
40073| Communication timeout| R/W| 0 – 65535| time in seconds|
40074 –

40077

| Factory Use| R| | |

• Register 40001 Value Description
  Register 40,001 is a read-only register. This register holds the model number of the hardware. If you are using multiple Comm modules, it is sometimes helpful to confirm that you are communicating with the expected module type. In this case, it will return 268.

• Register 40021 Value Description
  Register 40,021 is a read-only register. The values returned in these registers are signed 16-bit data assigned to digital inputs 1-16. The channel’s bit position is 1 input bitmapped where bit 0 = digital input 1.

• Register 40022 Value Description
  Register 40,022 is a read-only register. The values returned in these registers are signed 8-bit data, assigned to digital inputs 17-24. The channel’s bit position is 1 input bitmapped where bit 0 = digital input 1. The additional upper bits for digital inputs 17-24 will remain at 0 and serve as padding to make a proper 16-bit word to comply with Modbus RTU specifications.

• Register 40024 – 40033 Value Description
  Registers 40,024 – 40,033 are read-only registers. The values returned in these registers are raw data counts for analog inputs from 0-1023 (0-5VDC). A typical 0-5VDC data count would be 0-1023 and a typical 4-20mA data count would be 181-904.

• Register 40038 Value Description
  Register 40,038 is a read-only register. This register displays the readings of the frequency input (magnetic pickup) in hertz (Hz).

• Register 40047 – 40050 Value Description (MX5-A ONLY)
  Registers 40,047 – 40,050 are read/write registers. The values returned in these registers are signed 16-bit data, assigned to analog outputs. These values are dependent on the setting of registers 40051 and 40052.

• Register 40051 – 40052 Value Description (MX5-A ONLY)
  Registers 40,051 – 40,052 are read/write registers. This will allow you to configure what type of signal is provided for analog outputs. Use the list below to determine what value you should write based on the sensor installed. Register 40051 establishes Analog Outputs 1-2, and 40052 establishes Analog Outputs 3-4.

  • 0 – Not Used
  • 1 – 4-20mA
  • 2 – 0-20mA
  • 3 – 0-24mA

• Register 40061 Value Description
  Register 40,061 is a read/write register. The values returned in these registers are signed 16-bit data assigned to digital outputs. The channel’s bit position is 1 input bitmapped where bit 0 = digital output 1. The upper 8-bits are reserved for the MX5-D. The lower bits are for the digital outputs for all models (MX5, MX5-A, MX5-D).

In order to consistently bring you the highest quality, full-featured products, we reserve the right to change our specifications and designs at any time. FW MURPHY product names and the FW MURPHY logo are proprietary trademarks. This document, including textual matter and illustrations, is copyright-protected with all rights reserved. (c) 2019 FW MURPHY. A copy Of our typical warranty may be viewed or printed by going to www.fwmurphy.com/warranty.

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