3100-MCM Communication interface

Description

The 3100-MCM module is a module that provides a Modbus communication interface for the

Allen-Bradley/Rockwell Automation 1771 platform. It supports the PLC 5, PLC 2 and PLC 3 series

modules. The 3100-MCM module is ATEX and CSA SB certified. The 3100-MCM module can be

installed in a local rack or in a remote rack using remote I/O. The 3100-MCM module consists of a

microcontroller that controls backplane communications, DUART communications, data transfer from

the module to the PLC, and LED status indicators and interface circuits that support the

RS-232, RS-422 and RS-485 protocols.

3100-MCM

The 3100-MCM module can be used as a Modbus master or a Modbus slave unit. Each module supports 2 serial interfaces. The backplane current consumption of the 3100-MCM module is 65.5 amps at 0 volts DC. The operating temperature is 0 to 60 degrees Celsius and the storage temperature is -40 to 85 degrees Celsius. The relative humidity of the area around the module should be between 5% and 95%. The physical ports available on the module are 2 DB25 female connectors. The battery of the 3100-MCM module is not rechargeable and can be replaced. The battery is a 3.6 volt lithium-thionyl chloride size 1/2AA battery. Batteries have a shelf life of 68 years at 10 degrees Fahrenheit. The module has a working impact rating of 30 G and a non-working impact rating of 50 G.

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