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Phone: +86 16626708626Description
Product Core Brief
- Model: IC693CPU352-CE
- Brand: GE Fanuc (Emerson)
- Series: Series 90-30
- Core Function: Executes user logic and controls I/O in PLC system
- Product Type: CPU Module
- Key Specs: 25 MHz processor, 240K bytes user memory, supports floating point math, up to 2048 discrete I/O points
- Condition: New Surplus / New Original (obsolete part, limited spares available)
Key Technical Specifications
- Processor Speed: 25 MHz
- User Logic Memory: 240K bytes total (%R, %AI, %AQ registers)
- Discrete I/O Capacity: Up to 2048 points (with expansion racks)
- Analog I/O Capacity: Up to 128 In / 64 Out
- Boolean Execution Speed: 0.15 ms per 1K of logic (typical)
- Floating Point Math: Yes (supported in ladder logic)
- Built-in Ports: 1 serial port (SNP/SNP-X master or slave)
- Battery-Backed Clock: Yes
- Registers: Up to 32,640 words (%R)
- Programming Languages: Ladder Logic, SFC
- Operating Temperature: 0 to 60 °C
- Power Requirements: Supplied from baseplate backplane (typically 5 V logic)
- Status: Obsolete by manufacturer – spares only
Product Introduction
The GE Fanuc IC693CPU352-CE is a central processing unit for the Series 90-30 programmable logic controller system. It mounts in the CPU slot of a 5-slot or 10-slot baseplate and runs user programs to scan logic, handle I/O updates, and manage communications in mid-sized industrial setups like machine control, material handling, or process monitoring.
This CPU delivers faster scan times and larger memory than basic models, plus native floating point support for calculations involving temperatures, pressures, or flow rates. Plants stick with it for legacy 90-30 systems because it keeps existing programs and I/O configurations intact during upgrades or replacements, avoiding full migration to newer platforms like RX3i.
- IC693CPU352-CE
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No power-up LEDs (RUN/OK off) | No backplane power or bad insertion | ✅ High | Measure +5 V at baseplate pins with multimeter | Confirm PSU output; reseat CPU firmly |
| CPU OK LED flashing or off | Fatal error or config mismatch | ✅ High | Connect Proficy ME; read fault table | Clear faults; reload config if needed |
| RUN LED off after power cycle | No valid program or hardware fault | ✅ High | Check battery voltage (>3 V); verify program load | Replace battery; download program again |
| Slow scan times or watchdog | Overloaded logic or memory full | ✅ Medium | Monitor sweep time in Proficy diagnostics | Optimize logic; check %R usage |
| Serial comms fail (SNP port) | Cable, baud mismatch, or port config | ✅ Medium | Ping via SNP tool or test with known good cable | Verify config settings; test port |
| Floating point errors in logic | Unsupported math or bad operands | ✅ High | Inspect ladder for DIV/0 or overflow; test math blocks | Use proper data types; debug operands |
| Intermittent faults on boot | Low battery or capacitor aging | ✅ Medium | Replace battery; monitor over 24-hour run | Battery usually culprit in old units |
Most IC693CPU352 issues stem from power, battery, configuration, or program faults rather than the CPU dying. CPUs this age often just need a fresh battery and config reload. Take fault table screenshots and battery voltage readings—send them if you’re chasing ghosts.
Frequently Asked Questions (FAQ)
What’s the -CE suffix on IC693CPU352-CE mean? It’s a hardware/firmware revision letter. Functionally the same as other IC693CPU352 variants (like -CA or -CH), but always match revisions when swapping in redundant or multi-CPU setups to avoid subtle timing differences. Field swaps usually work across revisions without drama.
Is this CPU still manufactured new? No, Series 90-30 CPUs have been obsolete for over a decade. We stock new surplus—unused units from decommissioned spares or factory overstock. They perform identically to original but lack active Emerson support.
Does the IC693CPU352-CE support Ethernet? No built-in Ethernet. Add an IC693CMM311 (serial) or IC693CPU364 (built-in Ethernet) if you need TCP/IP. This model sticks to SNP/SNP-X over RS-232/485.
Can I swap this CPU without losing my program? Yes—the program, registers, and config store in flash/EEPROM (battery backs RAM during power loss). Power down, swap, power up, and reload config if needed. Battery must hold charge for retention during swap.
How much memory does it really give me? 240K bytes total user space, split across %R registers (up to 32,640 words), %AI/%AQ, and logic. Plenty for most 90-30 apps; monitor usage in Proficy to avoid hitting limits.
Why buy surplus over refurbished CPUs? Surplus units have zero runtime hours—no heat cycles, no capacitor degradation. Refurbs often come from failed systems and get minimal testing. We run every IC693CPU352-CE through a full rack boot, program load, I/O force, and 24-hour burn-in before ship.
What warranty do you provide? 1-year on functionality when installed correctly. Covers defects, not ESD damage, overvoltage, or bad config. Test reports with boot photos and diagnostics available on request.
