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The GE-Emerson IC697CMM712 Series 90-70 Serial Communications Module provides I/O ports for serial communications to the State Logic Control System. The State Logic CPU control system program uses the SCM to receive input from a serial device and to transmit information to a serial device.
Each module provides two ports that may each be configured to be RS-232 or RS-422/RS-485 ports. The State Logic Control System supports up to four Serial Communications Modules providing a capacity of a total of eight serial ports. The Serial Communications Modules are inserted in slots 2 through 5 of rack 0.
One of the eight ports may be a CCM2 port. An expanded form of the CCM2 protocol is supported providing read/write capability for analog input and output values, %M internal flags, and current States of Tasks, in addition to the normal discrete inputs and outputs, and variable values. Additional functionality is provided for custom CCM communication programs.
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