GE IC693CMM321-JK communication module

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GE IC693CMM321-JK

The GE Fanuc IC693CMM321-JK is an Ethernet Interface TCP/IP communication module designed for the GE Fanuc Series 90-30 PLC platform. It provides Ethernet connectivity between Series 90-30 PLC systems and industrial networks, enabling communication with HMIs, SCADA systems, other PLCs, and host computers.

Product Description

The IC693CMM321-JK allows a Series 90-30 PLC rack to communicate over Ethernet using standard TCP/IP networks. It supports GE’s SRTP (Service Request Transfer Protocol) and MODBUS/TCP communication, providing both client and server functionality for industrial data exchange.

The -JK revision corresponds to firmware release 3.12, which included maintenance improvements and compatibility updates for the IC693CMM321 Ethernet interface family.

Technical Specifications

Parameter	Description
Manufacturer	GE Fanuc / GE Intelligent Platforms
Product Series	Series 90-30 PLC
Model Number	IC693CMM321-JK
Module Type	Ethernet Interface Module
Communication Interface	TCP/IP Ethernet
Network Protocols	SRTP, TCP/IP, MODBUS/TCP
Ethernet Port	AAUI Ethernet port (external transceiver required)
Serial Ports	RS-232 Station Manager port; RS-485 Software Loader port
Slot Occupancy	Single slot
Maximum Server Connections	Up to 16 connections
Communication Mode	Client and Server
Power Consumption	Approx. <3 W
Data Rate	10 Mbps Ethernet

Main Functions

• Provides Ethernet networking capability for GE Fanuc Series 90-30 PLCs
• Enables PLC-to-PC and PLC-to-PLC communication
• Supports HMI and SCADA data acquisition
• Allows remote monitoring and programming functions
• Supports data transfer through COMMREQ ladder logic instructions
• Provides diagnostic functions through Station Manager interface

Application Areas

The GE IC693CMM321-JK is commonly used in:

• Factory automation systems
• Process control applications
• SCADA monitoring systems
• Manufacturing production lines
• Water treatment and utilities
• Power and energy automation
• Legacy GE Fanuc Series 90-30 PLC upgrades

Compatible Systems

Compatible with:

• GE Fanuc Series 90-30 PLC CPUs
• GE PLC Ethernet networks
• HMI/SCADA platforms supporting SRTP or MODBUS/TCP communication

Conclusion

The GE Fanuc IC693CMM321-JK Ethernet Interface Module is a key communication component for Series 90-30 PLC Ethernet networking. Although the Series 90-30 platform is now considered legacy, the IC693CMM321-JK remains widely used in industrial plants that require reliable Ethernet communication, remote diagnostics, and integration with existing automation systems.