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Product Core Brief
- Model: GE IC695CPE310-AB
- Brand: GE Fanuc / Emerson Automation
- Series: PACSystems RX3i
- Core Function: Central programmable automation controller
- Product Type: CPU/Controller Module
- Key Specs: 1.1 GHz processor; 10 MB user memory; Ethernet + RS-232/RS-485
- Condition: New Original / New Surplus
3. Key Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | IC695CPE310-AB |
| Manufacturer | GE Fanuc (Emerson Automation) |
| Series | PACSystems RX3i |
| Module Type | Mid-range CPU controller |
| Processor | 1.1 GHz Atom class |
| User Memory | 10 MB SRAM |
| Program Storage | 10 MB non-volatile Flash |
| Discrete I/O Memory | 32 K bits |
| Analog I/O Memory | 32 K bits |
| Local Racks Supported | Up to 8 |
| Communication Ports | 1× Ethernet (10/100 Mbps), RS-232, RS-485 |
| Supported Protocols | SNP, Modbus RTU Slave/Master, Serial I/O |
| Program Blocks | Up to 512 blocks (128 KB max) |
| Power Requirements | Backplane +5 V, +3.3 V; +24 V supply (typical) |
| Operating Temp | 0 °C to +60 °C (32 °F to 140 °F) |
| LED Indicators | Status, Fault, RUN, COMM |
| Rack Slots | Any valid RX3i main rack pair |
Based on multiple distributor and legacy datasheet summaries.
4. Product Introduction
The GE IC695CPE310-AB is a mid-range CPU module for the GE Fanuc PACSystems RX3i automation platform, combining processing power with field communication flexibility. With a 1.1 GHz processor and 10 MB of user memory, this controller executes real-time logic and manages distributed I/O across up to eight local racks.
This module includes onboard Ethernet (10/100 Mbps) plus RS-232 and RS-485 serial ports for connectivity to engineering stations, HMIs, and field devices. It runs standard industrial protocols (SNP, Modbus) and supports up to 512 program blocks for scalable logic designs. Verified stock in clear OEM condition ensures reliability for brownfield replacements or system expansions.
5. Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No RUN LED after power up | Backplane +5 V not present or PSU issue | ✅ High | Measure backplane +5 V with DC meter at CPU slot | Verify PSU status and fuse continuity |
| CPU faults immediately on start | Corrupted flash or improper firmware | ⚠️ Medium | Observe fault code LED pattern | Try firmware reload via PME/PME-Plus |
| Ethernet port no link | Cable/port miswire or switch mismatch | ⚠️ Medium | Link LED on RJ45 | Swap known good cable/switch |
| Serial comm fails | RS-232/RS-485 protocol mismatch | ⚠️ Medium | Check baud & parity, measure line levels | Match protocol settings and polarity |
| Program doesn’t execute logic | Program stored only in SRAM | ❌ Low | Check Flash copy existence | Ensure program is saved to non-volatile memory |
Note: It’s common for RX3i CPUs to appear “dead” after power loss if last program was only in SRAM. Always download to Flash or use a backup energy pack before shutdown.
- IC695CPE310-AB
6. Frequently Asked Questions (FAQ)
Q1: Can I swap an IC695CPE310-AB with older RX3i CPUs like IC695CPU310?
A: Yes — software compatibility is maintained. The CPE310 has a faster CPU core and more memory, but it accepts the same project files in Proficy Machine Edition. Incremental firmware compatibility matters; match CPU and PME versions.
Q2: What protocols does this controller support?
A: It handles standard industrial protocols including SNP, Modbus RTU Slave/Master, and Serial I/O over the serial ports, plus Ethernet communications.
Q3: Does it require an external battery for memory retention?
A: Programs are stored in Flash, so battery isn’t strictly required for retention. However, adding an energy pack ensures proper shutdown and protects against unexpected power loss.
Q4: How many I/O modules can be directly controlled?
A: Up to eight local racks can be attached. I/O memory allocation supports 32 K discrete and 32 K analog channels.
Q5: Why are some listings cheaper than factory price?
A: Most units online are New Surplus or Refurbished (tested) rather than current production from the OEM. Confirm condition and testing SOP with the supplier.
Q6: Is hot-swap supported on this CPU?
A: No. Removing or inserting the CPU while the backplane is powered can corrupt flash memory or damage the controller. Always power down the chassis before replacing.
