Description
Product Introduction
The GE Fanuc IC693CPU360 is a flagship high-capacity CPU module designed for demanding Series 90-30 PLC installations. Positioned above the 350-series processors, the CPU360 offers a massive 240 Kbytes of configurable user memory—nearly eight times the capacity of the CPU350/352—making it the ideal processing engine for complex plant-wide applications requiring extensive data logging, large recipe storage, and complex floating-point math functions.
Powered by a 32 MHz Intel 80386EX processor, the IC693CPU360 mounts into Slot 1 of any modular CPU baseplate. It comes standard with built-in front serial ports (RS-232 RJ11 and RS-485 15-pin D-sub) and a physical 3-position RUN/STOP key switch, allowing direct local connection to HMIs and programming software without occupying additional communication slots.
Key Technical Specifications
| Parameter | Specification |
| Full Part Number | IC693CPU360 (Covers all hardware/firmware revisions) |
| Module Type | Single-Slot Modular CPU (Slot 1 Installation) |
| Processor Type | 32 MHz Intel 80386EX |
| User Memory | 240 Kbytes Configurable (Logic, Registers, Hardware Configuration) |
| Boolean Execution Speed | 0.22 µs per boolean instruction |
| Built-in Front Ports | Port 1: RS-232 (RJ11 Connector), Port 2: RS-485 (15-pin D-sub) |
| Supported Protocols | SNP, SNP-X, Serial I/O (Modbus RTU Slave/Master via CMM) |
| Discrete I/O Capacity | 2,048 Inputs, 2,048 Outputs |
| Analog I/O Capacity | 2,048 Words Input, 512 Words Output |
| Baseplate Compatibility | Modular CPU baseplates (IC693CHS392, CHS393, CHS382, CHS383) |
| Key Switch Settings | RUN/ON, STOP/OFF, Memory Protect |
Application Scenarios & The “Trench” Experience
At 2:10 AM, a grain terminal’s automated ship-loading conveyor system came to a grinding halt during a 50,000-ton grain transfer. The primary PLC watchdog faulted out—an internal voltage spike had degraded the RAM bus on the existing CPU360 card, corrupting the active recipe tables and lock step safety interlocks across 14 remote I/O drop racks. With a dry-bulk cargo vessel incurring demurrage penalties of $2,500 every hour it sat idle, the millwrights needed an immediate CPU replacement that could execute the facility’s heavy 200 KB logic file without memory overrun errors.
Application Scenarios
- Large Batch Chemical & Food Processing: Stores extensive multi-ingredient recipe structures, batch execution logs, and PID loop configurations.
- Complex Material Handling Systems: Coordinates multi-rack sorting, barcode tracking buffers, and high-speed diverter logic across distribution centers.
- Turbine & Power Generation Control: Executes rapid floating-point math routines, vibration monitoring interlocks, and generator synchronization loops.
- Multi-Rack OEM Machinery: Controls large multi-station transfer lines requiring dozens of expansion baseplates and hundreds of analog loops.
Field Case Study
A steel rolling mill in Pennsylvania suffered a catastrophic CPU crash on their primary flying shear line when power supply transients destroyed the main CPU board. Because the machine’s program exceeded 180 KB of logic and data registers, substituting a lower-tier CPU350 or CPU352 was physically impossible due to memory limits. We pulled a pre-tested, factory-cleared surplus IC693CPU360 module from inventory and dispatched it via hot-shot courier. The site engineer slotted the card into Slot 1, restored the 220 KB backup file using Proficy Machine Edition, and had the rolling mill running coil stock before sunrise—saving the mill over $120,000 in scheduled downtime.

IC693CPU360

IC693CPU360
Transparency SOP: Quality Assurance & Testing
Every IC693CPU360 module is subjected to rigorous hardware and full-memory validation on live GE test racks before entering our ready-to-ship inventory.
- Inbound Visual Verification: Inspection for casing cracks, broken key switch stems, bent card-edge connector pins, and label/firmware tag authenticity.
- Modular Rack Power-On Test: Slotted into Slot 1 of an active GE IC693CHS392 10-slot rack with an IC693PWR330 power supply to verify key switch movement and OK, RUN, P1, and P2 LED startup pass.
- Full 240 KB RAM & Stress Test: Loaded with a specialized memory-filling stress application in Proficy Machine Edition to test all memory banks, register retention, and logic execution under continuous thermal soak for 4 hours.
- Dual Serial Port Communication Sweep: Simultaneous data transfer testing on Port 1 (RS-232 RJ11) and Port 2 (RS-485 D-sub) to verify auto-baud recognition and zero packet drop under heavy SCADA query loads.
- ESD Sealing & Final QC: Memory wiped back to factory default, diagnostic buffers cleared, key switch set to OFF, and the card sealed inside heavy ESD shielding with custom protective foam packaging.
The Veteran’s Tech Trap Guide
- ⚠️ Mind the 240 KB Memory Allocation: While the IC693CPU360 has 240 KB of total memory, this memory is configurable between program logic and register tables (%R, %AI, %AQ). If you are upgrading from a CPU350 or restoring a large project, ensure your hardware configuration settings in Proficy Machine Edition correctly allocate enough memory to %R registers to avoid a configuration fault.
- ❗ Never Hot-Swap the Processor Module: The GE Series 90-30 backplane is not hot-swappable! Inserting or pulling the while the baseplate power supply is energized can arc the backplane connector pins, ruin internal 3.3V/5V logic transceivers, or lock up the CPU. Always shut off power supply main power first.
- ⚠️ Proper Front Key Switch Position: If the CPU OK LED is lit green but the PLC refuses to enter RUN mode from software, check the physical front panel key switch! If set to the middle OFF/STOP position, hardware overrides software run commands. Set it to RUN/ON to enable remote logic execution.
- ❗ RJ11 Port Adapter Caution: Port 1 on the CPU face is a 6-pin RJ11 connector (RS-232), not an RJ45 Ethernet port. Plugging a network patch cable into this port or using an unshielded custom pinout adapter can short out the 5V power pin supplied on pin 5 of the RJ11 jack, causing the CPU to drop offline.
Frequently Asked Questions (FAQ for Conversion)
Q: What is the main difference between the and the IC693CPU350/352? A: Memory capacity. The provides 240 KB of user memory compared to only 32 KB on the CPU350/351/352 models, allowing it to handle much larger ladder logic programs and register data tables.
Q: Is the GE Fanuc hot-swappable? A: No. You must shut down main incoming power to the Series 90-30 baseplate before removing or installing the module to prevent equipment damage.
Q: Can I replace an IC693CPU350 or CPU352 with an ? A: Yes. The is backward-compatible with older 350-series modules. You can drop it into Slot 1 of the same modular baseplate and load your existing project settings directly via Proficy Machine Edition.
Q: How do I program the ? A: Programming is performed using Emerson/GE Proficy Machine Edition, VersaPro, or Logicmaster 90-30 via Port 1 (RS-232 ), Port 2 (RS-485 15-pin D-sub), or through the power supply serial port using an SNP programming cable.
Q: What warranty coverage comes with this surplus CPU module? A: Every module includes a full 12-month replacement warranty. All units are authentic GE Fanuc surplus equipment, thoroughly cleaned, inspected, and bench-tested under full memory loads prior to shipping.




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