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Phone: +86 16626708626Description
Product Core Brief
- Model: IC697CPM925-AA
- Brand: GE Fanuc / Emerson
- Series: Series 90-70
- Core Function: Single-slot floating point CPU
- Product Type: Programmable controller processor
- Key Specs: 64 MHz 80486DX2, 12K I/O, 1 MB RAM
- Condition: New Surplus
Key Technical Specifications
- Processor: 64 MHz 80486DX2 microprocessor
- I/O points: 12K inputs/outputs (any mix) + 8K analog
- Memory: 1 MB battery-backed CMOS RAM
- Serial ports: 1 RS-422/485 compatible
- Boolean execution: 0.4 µs per function
- Current required: 3.3 A nominal at 5 VDC backplane
- Battery life: 6 months without power
- Operating temperature: 0°C to 60°C
- Slots: Single-slot CPU, rack slot 1 only
- Cooling: Requires 70 CFM fan assembly
- IC697CPM925-AA
Product Introduction
GE IC697CPM925-AA is a single-slot floating point CPU for Series 90-70 PLC systems, handling real-time control of discrete and analog I/O via rack backplane. Supports IC697 discrete/analog modules plus IC660/661 Genius blocks.
64 MHz processor executes 0.4 µs Boolean with 1 MB RAM for large programs. Field techs pick it for high-speed math over base CPMs—installs in slot 1 with RUN/STOP switch and serial programmer port. Needs fan cooling; verify PSU holds 3.3 A load.
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No CPU OK LED on power-up | Backplane voltage drop or dead battery | ✅ High | Measure 5 VDC >4.75 V at slot 1 pins with Fluke 87 | Swap battery first; reseat in slot 1, calc PSU 3.3 A +20% |
| RUN/STOP switch ignored | Firmware lockout or keyswitch fault | ✅ Medium | Toggle to STOP, read serial %SA underrun bits | Cycle power in STOP; clear password via programmer |
| I/O scan timeout rack-wide | Config mismatch programmed vs actual | ✅ High | Logic 90 software rack scan: slot faults flagged | Verify module types in slots 2+; photo before changes |
| Program retain fails after outage | Battery <2.8 V or loose connection | ✅ High | Check battery LED; measure 3 VDC on pins | Install new CR2430 before unplug; 6 mo max holdup |
| Overheat shutdown | Missing 70 CFM fan or dust block | ❌ Low | IR >65°C on heatsink; airflow test paper strip | Mount fan direct back; clean fins yearly 24/7 duty |
Dump fault table to programmer before reset. CPUs outlast racks—90% faults from power or config. Send logs if stuck.
Frequently Asked Questions (FAQ)
Slot position—must be rack 1?
Yes, slot 1 leftmost only. Won’t latch elsewhere; backplane handshake fails.
AA firmware level?
Early release—check label vs host needs. Supports Logicmaster 90-70 v7+. Flash updates via serial if bulletin applies.
Battery swap procedure?
Power off, swap CR2430 type, 6 mo holdup max. Program reloads from EEPROM unless password blocks.
Fan cooling mandatory?
Yes, 70 CFM direct. No fan = thermal trip at 1 hr full load. Mount external if rack fan weak.
❗ Biggest swap pitfall?
❗ RUN/STOP in RUN during install—locks config, bricks until programmer clear. Set STOP, key OFF first. Burned me twice early days.
Condition and test process?
New Surplus: OEM stock, full rack test with 12K I/O sim at 64 MHz. Serial ping verified; no shorts. Reports ready.
Warranty, shipping?
1-year DOA. In stock, ships post burn-in cycle. Zero lead time.
