Buyer’s Guide to the GE IC695CPE310 RX3i Controller
Upgrading a legacy control system often means finding a processor that fits existing racks and software without forcing a full platform migration. The IC695CPE310 from GE Fanuc, part of the PACSystems RX3i series, addresses that need. This mid-range controller delivers 1.1 GHz processing speed and 10 MB of user memory, so you can run complex logic without replacing your entire infrastructure. Manufactured by Emerson Automation, it combines proven RX3i reliability with modern communication options.
What Makes This CPU a Smart Replacement Choice
The IC695CPE310 executes Boolean logic at 0.72 ms/k, which keeps scan times predictable for discrete and analog control. With 32 K discrete I/O memory and 32 K analog I/O memory, it handles mixed signal applications without extra hardware. The processor supports floating-point math, enabling precise calculations for process loops and motion coordination. A battery-backed real-time clock and SRAM/Flash storage protect your program through power interruptions.
Communication and Integration
Three communication interfaces come standard: one Ethernet port running at 10/100 Mbps with auto-negotiation, plus two serial ports (one RS-232 and one RS-485). The serial ports support SNP, Serial I/O, Modbus Slave, and Modbus Master protocols, making it easy to connect to HMIs, drives, and legacy devices. For Ethernet, the controller uses SRTP protocol and supports up to two programmer connections. Additional fieldbus options include PROFINET, EGD, Modbus TCP Server and Client, Genius, Profibus DP, and Ethernet, giving you flexibility as your network evolves.
Technical Specifications at a Glance
| Specification | Value |
|---|---|
| Processor Speed | 1.1 GHz |
| User Logic Memory | 10 MB |
| Discrete I/O Memory | 32 K |
| Analog I/O Memory | 32 K |
| Boolean Execution Speed | 0.72 ms/k |
| Local Racks | Up to 8 |
| Ethernet Port | 1 (10/100 Mbps) |
| Serial Ports | 2 (RS-232, RS-485) |
| USB Master Port | 1 (USB-A 2.0) |
| Power Requirement | 1 A at +5 VDC and +3.3 VDC, 0.5 A at +24 VDC |
| Memory Storage | SRAM, Flash |
| Floating Point | Yes |
| Backplane | Universal |
Installation and Setup Notes
The IC695CPE310 installs in a universal backplane and occupies two slots. It supports up to eight local racks, so you can distribute I/O across your machine footprint. The built-in USB-A 2.0 master port lets you upload or download applications using a thumb drive or smartphone, which simplifies field updates. Program and configure the controller with Proficy Machine Edition Logic Developer 7.0 SIM 3 or later. The RS-232 port pin 5 does not supply 5 V power, so plan your cabling accordingly.
Maintenance and Reliability
Because the IC695CPE310 uses battery-backed SRAM for program retention, schedule periodic battery checks based on your environment and duty cycle. The flash memory holds data indefinitely without power, providing a non-volatile backup. Keep the cabinet free of conductive dust and ensure adequate airflow around the module. Hot-swap capability allows replacement without shutting down the rack, which reduces downtime and protects your ROI. For safety-related installations, always follow the manufacturer’s safety manual and inspect connections regularly.
Compatibility and Integration
The controller works with the PACSystems RX3i platform and supports multiple IEC languages plus C programming. It is compliant with EC RoHS Directive 2002/95/EC. If you currently use a CPU310, you can swap to the CPE310 without upgrading your legacy PME software, which lowers migration cost. This backward compatibility makes the IC695CPE310 a practical choice for automotive, discrete manufacturing, chemical, and industrial steam applications.
Selection Checklist for Buyers
Before ordering, confirm your rack type, required I/O count, and communication protocols. Verify that your programming software version is 7.0 SIM 3 or later. Check power supply capacity: the module draws 1 A at +5 VDC and +3.3 VDC, plus 0.5 A at +24 VDC. If you need additional serial devices, plan for RS-232 or RS-485 wiring. SpareTechPLC can help you confirm current lifecycle status and availability. Contact them to discuss your application and ensure this CPU meets your needs.
