GE IC693CPU331-CC CPU Module

The GE Fanuc IC693CPU331-CC, also cataloged as the IC693CPU331 CPU Module, operates as a dedicated hardware component for centralized program execution and real-time I/O processing within GE Fanuc Series 90-30 platforms. Housing an 80188 microprocessor running at a clock speed of 10 MHz, the single-slot module executes 1K of Boolean logic in 0.4 ms and manages 16 KB of user program RAM memory. Field signal access scales up to 512 discrete inputs, 512 discrete outputs, 128 analog input words, and 64 analog output words across up to four expansion baseplates.

Hardware Specifications

Deterministic Network and CPU Backplane Execution

The IC693CPU331-CC module utilizes a high-speed internal bus architecture to achieve high backplane bus communication velocity across 5-slot or 10-slot baseplates. The integrated 80188 processor supports I/O density scaling up to 1024 total discrete points while maintaining deterministic cycle times. Serial communication relies on SNP and SNP-X slave protocols via the power supply interface, with optional CMM or PCM modules enabling SNP master, CCM, and RTU protocol modes. The architecture ensures full firmware flash compatibility for system upgrades and hardware memory retainment.

Frequently Asked Questions

Q: What power draw does the IC693CPU331-CC place on the backplane bus?

A: The module draws 350 mA of current directly from the 5 VDC system backplane power rail.

Q: How is serial programming established if the CPU card lacks a direct DB-9 connector?

A: The built-in serial port is accessed via the 15-pin D-sub connector located on the adjacent Series 90-30 power supply module, supporting SNP and SNP-X slave protocols.

Q: Which baseplate slots can house the IC693CPU331-CC card?

A: The CPU module must be installed exclusively in Slot 1 of any 5-slot or 10-slot CPU baseplate.

Field Installation Guidelines

1. Confirm that system line power to the power supply module is de-energized prior to inserting or seating the CPU card into Slot 1.
2. Align the IC693CPU331-CC module with the slot guides of Slot 1 on the CPU baseplate and push firmly until the upper and lower latches snap into place.
3. Verify that the protective earth (PE) grounding bar on the baseplate is firmly bonded to the industrial enclosure backpanel.
4. Ensure the RAM memory battery is connected on the power supply module prior to downloading ladder logic code or non-volatile system registers.
5. Apply power and inspect the power supply status LEDs to confirm processor self-test routines complete without error flags.