GE Fanuc IC693CMM311N Communications Coprocessor

Technical SpecificationsModel：IC693CMM311N Brand：GE Fanuc Product Type: Communications coprocessor module for Series90-30 PLC rack

Module Feature:Function: Independent communication coprocessor for Series90-30 PLC, offloads serial communication tasks from main CPU to avoid affecting PLC scan speed. Processor:20MHz 16-bit coprocessor Memory:32KB RAM for communication program Serial ports: Two serial interfaces via one connector; Port1 fixed RS232, Port2 selectable RS232 / RS485 Baud rate range:300bps ~115.2kbps Supported protocols: Modbus RTU, CCM, SNP LED indicators: OK, COMM, STATUS diagnostic lights Hardware self-diagnosis: serial port monitoring, communication error detection, backplane bus check Programming software:Proficy Machine Edition N = hardware revision variant

Electrical ParametersBackplane supply:+5VDC, 400mA max Power consumption:Max 2.0W

Mechanical & Structure:Mounting:Plug-in installation into Series90-30 rack single slot Weight:0.28kg Protection class:IP20

Environmental:Operating temperature:0℃ ~ +60℃ Ambient humidity:5~95% non-condensing Certification:UL, CE Status:Manufacturer discontinued legacy spare part

System compatibilityIC693CMM311N belongs to GE Fanuc Series90-30 PLC family. Compatible with Series90-30 CPU, power supply and I/O modules. Widely used to connect serial field instruments, HMI and third-party Modbus RTU devices.

FunctionIC693CMM311N is dedicated serial communication coprocessor. It handles serial data exchange independently, reducing main CPU load. Dual serial interfaces support multiple industrial serial protocols. It realizes data exchange between PLC and serial devices. Front LEDs show communication status and fault information for maintenance.

InstallationFollow lockout/tagout safety procedure before installation. Insert IC693CMM311N into Series90-30 rack slot. Connect serial cable to module connector. Configure protocol, baud rate and station address in programming software. Power on and verify serial data communication.

InterfaceSeries90-30 backplane gold-edge connector,multi-function serial terminal port,on-board OK / COMM / STATUS LED indicators for GE Fanuc IC693CMM311N.

DiagnosticModule offline:Check backplane +5VDC power supply and module seating. Serial communication failure:Inspect serial cable, baud rate, parity and station address matching. COMM fault light active:Data frame error, bus noise or wrong protocol configuration.

Product Brief

IC693CMM311N is GE Fanuc legacy Series90-30 serial communication coprocessor module,with dual RS232/RS485 ports for Modbus RTU and SNP industrial serial communication,discontinued PLC communication spare card.