GE Fanuc IC693CPU350-BC

Designed for Series 90-30 Control Systems

The GE Fanuc IC693CPU350-BC functions as the processing core of a Series 90-30 PLC system. Its role is to execute the control program, process field data, coordinate I/O operations, and maintain the logic required by an automated machine or production process.

The processor uses a 25 MHz 80386EX architecture and provides 32 KB of user program memory. Its documented scan performance is approximately 0.22 milliseconds per 1K of Boolean logic, making it suitable for many established machine-control applications.

Technical Profile

The main characteristics include:

• Single-slot CPU architecture
• 25 MHz processing speed
• 80386EX processor
• 32 KB maximum user program memory
• 2,048 discrete input references
• 2,048 discrete output references
• 9,999 words of register memory
• 2,048 words of analog input references
• 512 words of analog output references
• More than 2,000 timers/counters
• Support for up to eight system baseplates

Flexible PLC Architecture

One advantage of this processor is its compatibility with the modular structure of the Series 90-30 platform. A complete control system can combine the CPU with power supplies, I/O modules, communication modules, and expansion or remote baseplates.

The documented architecture allows one CPU system to support a CPU baseplate plus up to seven expansion and/or remote baseplates. This gives engineers flexibility when distributing I/O across a larger machine or production installation.

Communication and Programming

The processor works within the established Series 90-30 programming environment. Its serial communication arrangement uses the connector on the PLC power supply and supports SNP and SNP-X protocols. Other communication functions can be achieved through suitable optional modules.

For maintenance teams, this architecture is important because the CPU does not operate as an isolated component. The replacement unit must work correctly with the existing rack, power supply, I/O configuration, communication modules, and application program.

Where It Fits in Industrial Automation

This processor can be found in long-running automation installations where Series 90-30 equipment remains part of the production infrastructure. Potential applications include assembly machines, conveyors, packaging equipment, material-processing systems, and general factory automation.

Its value today is particularly relevant to maintenance and lifecycle management. Keeping a compatible CPU available can reduce downtime when an older control system experiences a processor failure.

Procurement Considerations

For replacement purchasing, compare the complete catalog number rather than relying only on the CPU family name. The BC revision represents a specific hardware generation, and GE Fanuc documentation lists firmware-release information specifically for this version.

Our company supplies industrial automation spare parts for maintenance and replacement requirements. Before ordering, customers should confirm the required revision, firmware compatibility, physical condition, and system configuration to ensure the processor is appropriate for the existing Series 90-30 installation.