GE IC693PCM301-1 GE IC693PCM301-3 GE IC693PCM301-4 GE IC693PCM301-2

The GE IC693PCM301 is a programmable coprocessor module designed to enhance the processing and communication capabilities of GE Fanuc Series 90-30 PLC systems. Unlike typical I/O modules, this coprocessor executes custom logic and communication routines independently of the main CPU, enabling advanced application handling, serial communications, and integration with external devices. Its support for industry protocols and flexible programming makes it ideal for automation systems that require bespoke control or extended data exchange beyond standard PLC scan logic.

Technical Specifications

Specification	Description
Module Type	Programmable Coprocessor Module (PCM)
Compatible PLC	GE Fanuc Series 90-30
Total Memory	192 KB
MegaBasic Memory	47 KB
Supported Languages	MegaBasic, C, BASIC
Communication Protocols	Modbus RTU, GE Fanuc CCM
Serial Ports	2 via single 25-pin D-shell connector
Mounting Location	Series 90-30 CPU baseplate (not slot 1)
LED Indicators	OK, US1, US2 status LEDs
Restart Function	Front-panel restart pushbutton
Backup Memory	Battery-backed RAM (lithium battery)
Power Consumption	~425 mA @ 5 V DC
Slot Width	Single slot

Dimensions (L×W×H): approx. 140 × 38 × 102 mm
Weight: ~0.40–0.55 kg

Recommended Related Models

GE IC693CPU374 – High-performance Series 90-30 CPU module
GE IC693CMM311 – Serial communication interface module
GE IC693DSM314 – High-density discrete output module
GE IC693MDL730 – High-capacity digital input module

Popular GE Series 90-30 Models

GE IC693CPU366 – Mid-range CPU module
GE IC693DNM200 – DeviceNet master communication module
GE IC693DNS201 – DeviceNet slave communication module
GE IC693MDL752 – Standard 16-point digital input module

Applications

The IC693PCM301 is well suited for automation systems requiring programmable logic beyond standard PLC capability, including:

Advanced communications with serial devices such as barcode readers, scales, and printers
Custom protocol handling using Modbus RTU or GE Fanuc CCM
Offloading complex calculations or application-specific logic from the main CPU
Interfacing with RTU master devices and ASCII hardware
Legacy system enhancements where extended processing or interfacing is needed

Its on-board processing and programmable nature make it a versatile addition to Series 90-30 systems.

Advantages

Enhanced processing capability beyond standard PLC logic
Dual communication ports for flexible device interfacing
Supports multiple languages and protocols including C, MegaBasic, Modbus RTU, and CCM
Battery-backed memory protects user data during power interruptions
Front-panel restart button simplifies module reinitialization

The IC693PCM301 delivers an adaptable and powerful solution for mission-critical control and communication tasks.

Technical FAQs

What is the purpose of the IC693PCM301?
It adds programmable coprocessor functionality to Series 90-30 PLC systems.
Which programming languages are supported?
MegaBasic, C, and BASIC programming languages are supported.
How many serial ports does this module provide?
It features two serial ports accessed through a single front-panel connector.
Which communication protocols does it support?
Modbus RTU and GE Fanuc CCM protocols.
Does it retain memory during power loss?
Yes — battery-backed RAM retains user programs and data.
Where can the module be installed?
It installs in a GE Series 90-30 main CPU baseplate slot (not slot 1).
Can the IC693PCM301 be used in expansion racks?
No — it functions only in the main backplane with the CPU.
What do the LED indicators show?
LEDs indicate module status and serial port activity.
Is a restart button included?
Yes — a front-panel pushbutton allows switching between run and program modes.
Does it require special cables for serial connections?
Yes — external serial cables such as IC690CBL701/702/705 are typically used and sold separately.