Rockwell Automation 440R MSR240P Minotaur Safety Relay - Manual

Communication Module MSR240 1
Manual and Protocol Description
Overview
The MSR240 Communication Module serves as an interface between a MSR210 or
MSR211 Basic Module and a standard serial data communication line. The MSR240
transmits data relating to the operational status and fault conditions of, and the external
electrical circuits monitored by, the MSR200 System. The MSR240 is connected via a
10-core flat cable to an MSR210/211 Basic Module or MSR230 Extension Module. The
two processors in the Basic Module exchange data cyclically over a serial system bus
(SPI). Data is transferred to the MSR240 via the flat cable connection, through a driver
circuit stage. The MSR240 converts the data into RS232 and RS485 transmission levels
with appropriate serial data protocols, so that it can be transferred to an external device
(e.g. Display Module) or system (PC or PLC).
The MSR240 is available in three versions:
• 440R-H123181: with RS232 serial interface
• 440R-H123182: with RS485 serial interface
• 440R-H123183: with RS232 and RS485 serial interfaces
The MSR240 is housed in a 17.5mm wide DIN rail mounting enclosure.
The serial data communication connections are made through one or two 3-way plug-in
screw terminal blocks.
TxD GND
A B GND
Á
1 2 3 5 6
7
8
9
1: Terminal A (RS485)
2: Terminal Cable Shield (RS232)
3: Terminal B (RS485)
4: Terminal TxD (RS232)
5: Terminal GND (RS485)
6: Terminal GND (RS232)
7: Interface Connection to MSR210P or
MSR211P Basic module
8: Power “on” LED
9: RS232 / RS485 transmit annunciator LED