Murphy MX4 Series Installation And Operation Manual
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Murphy MX4 Series Installation And Operation Manual

Interchange common control module
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Interchange™ Comm Control
Module, MX4 Series
Installation and Operations Manual
00-02-0695
12-06-11
Section 50

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Summary of Contents for Murphy MX4 Series

  • Page 1 Interchange™ Comm Control Module, MX4 Series Installation and Operations Manual 00-02-0695 12-06-11 Section 50...
  • Page 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 immediately if you have any questions.

  • Page 3: Table Of Contents

    Table of Contents Murphy Interchange Comm Control Module Series ............1   MX4 Thermocouple / MPU ................... 1   Product Dimensions and Mounting ................1   Accessories ........................1   Specifications ....................... 1   MX4 Installation Instructions ..................1  ...
  • Page 4 (THIS PAGE INTENTIONALLY LEFT BLANK)

  • Page 5: Murphy Interchange Comm Control Module Series

    Murphy Interchange Comm Control Module Series The MX4 expansion module provides temperature and frequency input capability to existing and future 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 functionality for communication and monitoring by the master controller.

  • Page 6: Installation Diagram

    Installation Diagram Section 50 00-02-0695 12-06-11 - 2 -...
  • Page 7 Section 50 00-02-0695 12-06-11 - 3 -...

  • Page 8: Mx4 Jumper Configuration

    MX4 Jumper Configuration CANBUS: Communication Link to Main I/O Module  LK1: 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 MX4 must be removed to access this jumper link (LK1).
  • Page 9 RS485 Communication Port: Slave Comm. Port. (See Pictorial Above)  LK2: These jumpers provide a termination, pick-up, and pull-down resistors for 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.

  • Page 10: Communications

    Communications Physical Layer: The MX4 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 pair cable suitable for RS232 networks.

  • Page 11: Mx4 Expansion Module - Modbus Rtu Description

    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.
  • Page 12 Modbus  Read/ Description  Definitions  Range Data Units Register  Write  40033  Raw count Thermocouple input 11  R  0 ‐ 4095  A/D count  0 = 0.0 VDC, 4095 = 4.096 VDC  40034  Raw count Thermocouple input 12  R  0 ‐ 4095  A/D count  0 = 0.0 VDC, 4095 = 4.096 VDC  40035  Raw count Thermocouple input 13  R  0 ‐ 4095  A/D count  0 = 0.0 VDC, 4095 = 4.096 VDC  40036  Raw count Thermocouple input 14  R  0 ‐ 4095  A/D count  0 = 0.0 VDC, 4095 = 4.096 VDC  40037  Raw count Thermocouple input 15  R  0 ‐ 4095  A/D count  0 = 0.0 VDC, 4095 = 4.096 VDC  40038  Raw count Thermocouple input 16 ...
  • Page 13 Modbus  Read/ Description  Definitions  Range Data Units Register  Write  40064  Cold junction 2 temperature  R  ‐400 to +1850 F  deg F X10  40065  Factory Use  R  40066  Factory Use  R  40067  Temperature thermocouple 1  R  ‐2000 to +25000  deg F X10  40068  Temperature thermocouple 2  R  ‐2000 to +25000  deg F X10  40069  Temperature thermocouple 3  R  ‐2000 to +25000  deg F X10  40070  Temperature thermocouple 4  R  ‐2000 to +25000  deg F X10  40071 ...
  • Page 14 Modbus  Read/ Description  Definitions  Range Data Units Register  Write  40103  Temperature input 16 type  R/W  0 ‐ 1  0 = J, 1 = K  40104  Temperature input 17 type  R/W  0 ‐ 1  0 = J, 1 = K  40105  Temperature input 18 type  R/W  0 ‐ 1  0 = J, 1 = K  40106  Cold junction 1 temperature offset  R/W  ‐32768 to +32767  deg F  40107  Cold junction 2 temperature offset  R/W  ‐32768 to +32767  deg F  40108  Factory Use  R  40109  Communication timeout  R/W  0 – 65535 ...
  • Page 15 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 279. Register 40042 Value Description Register 40,042 is a read-only register.

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