Features:
- Two RS-232/RS-422/RS-485 ports.
- CCM and SNP protocol service.
- 19.2 Kbaud full-duplex operation.
two RS-232/RS-422/RS-485 ports establishes the principal capability of
IC697CMM711 within its Series 90-70 function.
The relationship between CCM and SNP protocol service and 19.2 Kbaud full-duplex operation determines how the module fits the surrounding rack, network, or field circuit.
During service, restart/reset control must remain consistent with the saved application and the installed hardware.
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General Electric IC697CMM711 Communications Coprocessor Module Manuals, Datasheets, Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Using the coprocessor with an IC697 CPU
- Rack role: IC697CMM711 operates as a communications coprocessor in an IC697 CPU rack.
- Processor relationship: The module exchanges commands and data with the resident CPU across the backplane.
- Channel independence: Its two serial channels can be configured separately for different electrical standards or protocols.
- Module configuration: Port parameters are defined in the controller configuration rather than by a generic neighboring-module profile.
Electrical and protocol choices
- Interfaces: Each port supports RS-232, RS-422, or RS-485 wiring.
- Protocols: CCM, SNP, and RTU Modbus communications are available according to the selected channel setup.
- Duplex operation: Both channels support full-duplex transfers at rates up to 19.2 Kbaud.
- Connector planning: Cable pinout, grounding, and termination follow the electrical mode chosen for that specific port.
How the two channels operate
- Independent tasks: One channel can service a different device or protocol from the other.
- CPU requests: Backplane exchanges allow the controller application to initiate and monitor communication activity.
- Restart control: The front restart/reset function reinitializes module operation without changing the identity of attached devices.
- Status review: Channel and module indications help separate a port problem from a CPU-rack problem.
Commissioning IC697CMM711
- Parameter match: Baud rate, parity, stop bits, protocol, and electrical mode must match the connected serial device.
- Cable check: RS-232 wiring is not substituted for a differential RS-422 or RS-485 connection.
- Online test: Each configured channel is tested independently before both are placed in service.
- Fault response: A silent port is checked for configuration, cable pinout, termination, and peer-device settings before module replacement.