IC693CPU374 | GE Fanuc | Series 90-30 133MHz 586 Single-Slot CPU with Dual Ethernet Ports

Module Overview

The IC693CPU374 represents the high-performance tier of the Series 90-30 PLC lineup. Powered by a 133 MHz embedded 586-class processor, this single-slot CPU is engineered for applications requiring rapid logic execution and native network connectivity. Its defining feature is the integrated Ethernet controller, which includes a built-in two-port 10/100 Mbps switch. This allows for simple daisy-chaining of network devices without requiring an external switch, significantly reducing cabinet complexity and wiring costs.

Detailed Engineering Specifications

The IC693CPU374 balances high-speed processing with substantial memory for complex boolean and floating-point operations.

Networking and Communication Capabilities

Unlike lower-tier 90-30 CPUs, the IC693CPU374 provides native Ethernet support without the need for a separate CMM (Communication) module. The dual-port switch supports auto-negotiation and auto-MDI/MDIX sensing. While it supports SRTP for programming and HMI communication, it also utilizes Ethernet Global Data (EGD) for high-speed producer/consumer data exchange between multiple PLCs. It is important to note that this module does not include built-in Web Server or Modbus TCP channel support; those requirements typically necessitate an upgrade to the RX3i platform.

Hardware Compatibility and Installation

The IC693CPU374 must be installed in Slot 1 of a modular Series 90-30 CPU baseplate (such as the IC693CHS391 or IC693CHS397). It is compatible with all standard Series 90-30 I/O and specialty modules. For backup protection, the CPU utilizes the battery located in the system power supply to maintain RAM contents during power cycles, though critical logic can also be permanently stored in the onboard Flash memory.

Technical FAQ

Do the two Ethernet ports represent two different network interfaces?

No. The two RJ-45 ports are connected to an internal switch and share a single MAC address and a single IP address. They act like a small unmanaged switch integrated into the CPU faceplate.

What software is required to configure the IC693CPU374?

Configuration and programming are performed using Proficy Machine Edition (PME) Logic Developer. While older versions of VersaPro might support basic logic, PME is required to fully utilize the Ethernet configuration parameters.

Does this CPU support "Hot Swapping"?

No. Like all Series 90-30 components, the system power must be disconnected before removing or inserting the CPU module into the baseplate to prevent electrical damage.