GE Fanuc IC693CPU351 Single-Slot 25MHz 80386EX CPU

Product Overview

The GE Fanuc IC693CPU351 is a high-performance, single-slot modular Central Processing Unit (CPU) designed for complex automation applications within the Series 90-30 Programmable Logic Controller (PLC) family. Driven by an Intel 80386EX processor running at a 25 MHz clock speed, this module delivers rapid execution with a typical scan rate of 0.22 ms per 1K of Boolean logic. This compact and lightweight module, weighing just 0.29 kg (0.64 lbs), provides a high-density control solution with a maximum user program memory capacity of 240 KB (on firmware release 9.0 or later), extensive I/O capacities, and built-in serial connectivity.

Key Advantages

• High-Speed Processing: The 25 MHz 80386EX core handles intricate machine logic swiftly, yielding a lightning-fast logic execution speed of 0.22 ms per 1K Boolean steps.
• Lightweight Single-Slot Design: With a net weight of only 0.29 kg, this single-slot CPU minimizes the physical load on your baseplate while leaving maximum room for I/O modules.
• Massive I/O Allocation: Fully addresses up to 2,048 discrete input points (%I), 2,048 discrete output points (%Q), and up to 32,640 words each for both analog inputs (%AI) and analog outputs (%AQ).
• Flexible Protocol Support: Features 3 integrated serial ports. The power supply connector port provides local HMI/programming access via SNP/SNP-X slave protocols, while isolated Ports 1 and 2 handle RTU slave and SNP/SNP-X master/slave communications.
• Excellent Scalability: Supports direct link configuration for up to 7 local I/O expansion baseplates and/or up to 7 remote I/O baseplates to accommodate distributed machinery control.

Technical Specifications

Quick Installation Tips

• Slot Placement: The IC693CPU351 is a modular single-slot CPU and must always be installed into the designated CPU slot (Slot 1, adjacent to the power supply module) on a Series 90-30 5-slot or 10-slot CPU baseplate. Despite its 0.29 kg weight, secure it firmly with the top and bottom chassis clips.
• Firmware & Memory Verification: Be aware that user program memory sizing relies heavily on the internal firmware version. Firmware versions prior to Release 9.0 provide up to 80 KB, while updates to Release 9.0 and later unlock the full 240 KB memory allocation.
• Adding Networking Protocols: This processor does not include a native Ethernet port on its faceplate. If your control network demands Ethernet, Profibus, GBC, or GCM options, you must add dedicated communication modules into the adjacent backplane slots.

Technical FAQs

Q1: Which configuration software options are compatible with the IC693CPU351 processor?

A1: This CPU module is officially supported by Logicmaster 90-30 microprogramming and configuration software (Release Version 6.0 and later), as well as modern control programming and configuration software (Release Version 2.0 and later).

Q2: Where are the 3 built-in serial ports located on this module?

A2: Two serial communication ports (Port 1 and Port 2) are located directly on the front faceplate of the CPU module itself. The third port is routed internally through the backplane connectors out to the physical D-sub port embedded on the PLC's system power supply module.

Q3: Does the IC693CPU351 include a real-time clock and data protection backup?

A3: Yes. This CPU module comes equipped with a highly stable, integrated battery-backed real-time clock, variable overrides, and a dedicated key switch on the front assembly to restrict unauthorized program overrides.