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Phone: +86 16626708626Description
2. Product Core Brief
- Model: IC697CPX772HD
- Brand: GE Fanuc (Emerson)
- Series: Series 90-70
- Core Function: Executes user logic, scans I/O, and manages system resources
- Product Type: Central Processing Unit (CPU) Module
- Key Specs: 96 MHz 80486DX4 processor, 512 KB battery-backed RAM, 256 KB non-volatile flash, supports floating point math, three serial ports
- Condition: New Surplus / New Original (obsolete part, limited spares available)
3. Key Technical Specifications
- Processor: 96 MHz 80486DX4, 32-bit
- User Memory: 512 KB battery-backed RAM
- Non-Volatile Memory: 256 KB flash (for program storage/firmware)
- Discrete I/O Capacity: Up to 2048 inputs / 2048 outputs (with expansion)
- Analog I/O Capacity: Up to 8K points
- Boolean Execution Speed: 0.4 μs per boolean function
- Serial Ports: Three (two RS-232/RS-485 configurable, one additional)
- Protocols: SNP/SNP-X, Modbus RTU (via add-ons), CCM
- Floating Point Math: Yes
- Current Draw: 3.1 A at 5 V DC from backplane
- Operating Temperature: 0 to 60 °C
- Mounting: Single slot in Series 90-70 rack
- Status: Obsolete by manufacturer – spares only
4. Product Introduction
The GE Fanuc IC697CPX772HD is a high-performance single-slot CPU for the Series 90-70 programmable controller family. It fits in the main rack and runs ladder logic, handles real-time I/O scanning, and supports communications in heavy-duty applications like material handling, turbines, presses, or large discrete processes.
This CPU provides solid scan speeds with 512 KB RAM and flash for reliable program storage, plus built-in floating point for process math. Legacy users keep it in service because it maintains compatibility with existing 90-70 racks, I/O modules, and programs—avoiding costly rip-and-replace to newer platforms like PACSystems.
- IC697CPX772HD
5. Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No LEDs on power-up (OK off) | No rack power or loose insertion | ✅ High | Measure 5 V DC at backplane pins | Verify PSU; reseat CPU |
| CPU OK LED flashing/off | Fatal fault or no valid program | ✅ High | Connect via serial (SNP); read fault table in software | Clear faults; reload program/config |
| RUN LED won’t light | Battery dead or program corrupt | ✅ High | Check battery voltage (>3 V); verify program checksum | Replace battery; re-download program |
| Slow scans or watchdog trips | Logic overload or memory full | ✅ Medium | Monitor sweep time in diagnostics | Optimize code; check memory usage |
| Serial port no response | Baud mismatch, cable, or port config | ✅ Medium | Test with known good null-modem cable; ping SNP | Match settings in config; test ports |
| Intermittent faults on cycle | Aging battery or capacitor | ✅ Medium | Replace battery; run 24-hour burn-in test | Battery common in stored units |
| Floating point errors | Bad operands or overflow | ✅ High | Inspect math instructions; force test values | Debug operands; use proper data types |
Series 90-70 CPU problems typically hit from power, battery drain (especially after storage), config mismatches, or program issues—not the processor failing outright. Capture fault tables, LED patterns, and battery readings. Send them over if it’s intermittent; we spot patterns fast.
6. Frequently Asked Questions (FAQ)
What does the -HD suffix mean on IC697CPX772HD? It’s a hardware/firmware revision (e.g., -HD variant seen in surplus). No functional changes from base IC697CPX772—same processor speed, memory, ports, and I/O support. We’ve swapped HD units into running 90-70 racks without code or config tweaks.
Is the IC697CPX772HD still manufactured new? No, Series 90-70 went obsolete long ago. We carry new surplus—unused, factory-sealed or new-old-stock pulled from spares. They run like original but no active Emerson support.
How many serial ports does it have? Three total: two configurable RS-232/RS-485 for SNP/SNP-X or Modbus, plus one additional. Great for redundant comms or separate HMI/programming links.
Can I swap this CPU without losing the program? Yes—program stores in flash or battery-backed RAM. Power down, swap, power up; reload config if battery died. Battery must be good for retention during swap—always test voltage first.
Does it support Ethernet natively? No built-in Ethernet. Add an Ethernet coprocessor (like IC697CMM711) or gateway for TCP/IP. Sticks to serial protocols out of the box.
Why surplus over refurbished? Surplus units have no runtime—no heat stress, no battery cycles. Refurbs often come from failed systems and get basic repairs. We test every IC697CPX772HD: full rack boot, program load, I/O force, serial comms check, and extended run before ship.
What warranty applies? 1-year functional when installed per manual. Covers defects, not ESD, overvoltage, or bad config. Test reports with boot photos, fault clears, and diagnostics available.
