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The GE IC697CMM711, also cataloged as the IC697CMM711 Communication Coprocessor Module, operates as a dedicated hardware component for multi-drop serial protocol processing and I/O data exchange within Series 90-70 PLC platforms.

Hardware Specifications

Parameter Specification
Model IC697CMM711
Brand GE Fanuc / Emerson Automation
Origin USA
Weight 0.51 kg (1.13 lbs)
Dimensions Single-slot Series 90-70 module format
Operating Temp 0 to 60 deg C
Storage Temp -40 to 85 deg C
Power Consumption 3.5 W maximum (700 mA @ 5 VDC backplane bus)
Processor Architecture 12 MHz 80C186 Microprocessor
Backplane Compatibility Series 90-70 CPU Baseplate (VME standard C.1 compliant)
Communication Ports 2 individual serial ports (25-pin D-shell female connectors)
Physical Layer Standards RS-232, RS-422, RS-485
Supported Protocols SNP/SNP-X (Master/Slave), CCM (Master/Slave/Peer), Modbus RTU (Slave Only)
Supported Baud Rates 300, 600, 1200, 2400, 4800, 9600, 19200 Baud
Status LED Indicators Module OK, PORT1, PORT2
User Controls Pushbutton switch for communication re-initialization
Internal Battery None required

Backplane Bus Communication Velocity & Firmware Execution

The module offloads protocol execution from the primary CPU via an onboard 12 MHz 80C186 processor, maintaining predictable backplane bus communication velocity across the VME standard C.1 bus interface. Multi-protocol port mapping and firmware flash compatibility allow simultaneous execution of SNP, CCM, or Modbus RTU modes configured through Logicmaster 90-70, VersaPro, or Proficy Machine Edition.

Frequently Asked Questions

Q: Does the IC697CMM711 module support hot-swapping while the baseplate is powered?

A: No, baseplate power must be disconnected prior to inserting or removing the module to prevent electrical arcing and circuit damage.

Q: What is the current consumption of the IC697CMM711 from the backplane power supply?

A: The module draws 700 mA (0.7 A) from the +5 VDC backplane power bus.

Q: Can both serial ports be configured independently for different protocol combinations?

A: Yes, each 25-pin port is independently configurable for various port protocol combinations including CCM/CCM, CCM/RTU, RTU/RTU, SNP/SNP, SNP/CCM, and SNP/RTU.

Field Installation Guidelines

  • Power Interruption: Disconnect power from the Series 90-70 baseplate before installing or removing the module to prevent backplane connector degradation caused by electrical arcing.
  • Baseplate Mounting: Align the module circuit board with the top and bottom card guides of the designated CPU baseplate slot, sliding the unit firmly until the VME backplane connectors lock into place.
  • Port Cable Connections: Secure field wiring to the two 25-pin female D-shell connectors using shielded RS-232, RS-422, or RS-485 cables. Fasten connector jack screws to preserve ground contact.
  • Shield Grounding: Terminate cable drain shields to low-impedance earth ground points to minimize electrical noise pick-up on long multi-drop serial runs.

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