General Information

Core Description

The IC693CPU374 is a high-performance GE Fanuc processor module featuring dual auto-sensing 10/100 Mbps Ethernet ports. Fully compatible with the Series 90-30 PLC backplane, this unit works seamlessly with industrial networks to deliver flexible programming, Ethernet Global Data exchange, and stable automation connectivity without external transceivers.

Specific Application

• High-speed peer-to-peer data exchange via Ethernet Global Data between Series 90, PACSystems, and VersaMax controllers.
• Remote PLC logic configuration, diagnostics, and real-time monitoring through standard PC programming software over TCP/IP networks.
• Direct distributed plant network layout allowing daisy-chained PLC connections utilizing the internal 10/100 network switch.

Ordering Information

System Compatibility

Backplane Integration: Fully compatible with the standard GE Fanuc Series 90-30 PLC backplane slot 1.

Network Nodes: Interfaces natively with Series 90, PACSystems, VersaMax controllers, and host computers running CIMPLICITY software.

Software Version Requirements: Fully operational with Machine Edition Logic Developer software version 5.0, SP3, Logic Developer PLC HotFix 3.

Alternative Models & Functional Differences

IC693CPU374 PLUS (Release 12.0 and later): The CPU374 PLUS incorporates an upgraded 200 MHz Ethernet processor and features advanced capabilities including an embedded network switch, web server connectivity, SRTP client channels, and COMMREQ-driven EGD commands.

Earlier IC693CPU374 Versions (Pre-Release 12.0): Built on a different underlying Ethernet hardware platform. These legacy versions lack the integrated switch, cannot execute SRTP Client operations, and cannot be updated or retrofitted to achieve the PLUS version feature set.

IC693CMM321 (Separate Ethernet Module): A standalone option where up to three distinct modules can be installed into the Series 90-30 backplane slots. Unlike the CPU374, it handles communication interface functions only and does not house the central PLC processing unit.

Installation & Troubleshooting FAQ

Q1: What must be done before physically inserting or removing the module from the baseplate?

A: You must ensure that the Series 90-30 PLC baseplate power is switched completely OFF. Inserting or removing a processor module while power is applied can damage the internal circuitry, cause the controller to stop abruptly, or lead to personal injury.

Q2: What do the LED indicators show if all three Ethernet lights blink slowly in unison?

A: When the EOK, LAN, and STAT lights blink slowly and simultaneously in an identical pattern, it indicates that the module is currently executing or awaiting a Software Load operation.

Q3: Why does the STAT LED turn off during regular operations?

A: The STAT LED remains constantly illuminated when the module is working correctly without active errors. If this indicator shuts off, it means an anomaly has occurred and an event message has been logged in the internal exception log, which must be reviewed via the Station Manager interface.

Q4: How can a duplicate IP address conflict be safely verified on the network?

A: Unplug the local network cable from both communication ports and issue a command line ping to that specific IP address from an external computer. If a successful ping reply returns while your unit is entirely disconnected, another machine is actively using that identical IP address.

Q5: What risk is associated with connecting both Ethernet ports directly to the same network device?

A: The dual integrated ports must never be wired together to the same hardware device either directly or through loops. Twisted-pair infrastructure networks require a distinct tree topology rather than a closed ring; a ring configuration triggers duplicate packet loops and causes immediate network overload.