OVERVIEW

Official designation: GE Fanuc IC693CMM311 (Series 90-30, Communications Coprocessor Module)

Role/Application: Dual-port coprocessor module for Series 90-30 modular CPUs, enhancing external communication via GE CCM, RTU (Modbus), and SNP protocols.

KEY SPECS SUMMARY

Power: 400 mA at 5 VDC

Interfaces / Ports: Two 25-pin D-shell ports

Indicators: OK, US1, US2 LEDs

Operating Temp: 0 degrees C to 55 degrees C

Platform / Compatibility: Series 90-30 modular CPUs

Limit: Up to four CMMs per baseplate

Lifecycle: Discontinued/Obsolete

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the maximum supported communication baud rate for the IC693CMM311 serial ports?

A: The module supports standard baud rates up to 19200 Baud rate.

Wiring & Installation:

Q: Which communication standard is supported only by Port 2 on the IC693CMM311 module?

A: Port 2 is configurable for RS-485 applications, while Port 1 is RS-232 only.

Troubleshooting & Compatibility:

Q: Is the IC693CMM311 module compatible with all Series 90-30 central processing unit models?

A: It is compatible with modular CPUs such as 311, 313, 323, and 331 or higher, but not embedded CPUs.

Replacement & Upgrades:

Q: What action is performed when the RESTART pushbutton is pressed while the MODULE OK LED is on?

A: The module will be re-initialized from the currently configured Soft Switch Data settings.