Description
Product Overview
The GE IC695CPU315 is a PACSystems RX3i central processing unit designed for industrial automation applications requiring deterministic PLC control, large program capacity, and integration with distributed I/O systems. As the main processor module within an RX3i rack, the GE IC695CPU315 executes application logic, manages data exchange with I/O modules, and coordinates communication between automation devices. It is built around a 1 GHz Intel Celeron-M processor architecture and supports demanding machine control and process automation applications.
The GE IC695CPU315 belongs to the PACSystems RX3i controller family and supports up to 512 program blocks with individual block sizes up to 128 KB. The CPU provides 20 MB of battery-backed RAM and 20 MB of non-volatile flash user memory, allowing engineers to store application programs, configuration data, and symbolic variables required for complex control projects. The module supports Ladder Diagram, Structured Text, Function Block Diagram, and C programming environments through compatible engineering software.
Installed inside an RX3i universal backplane, the GE IC695CPU315 communicates with system modules through the dual backplane architecture, including RX3i PCI and high-speed serial bus connections. Embedded RS-232 and RS-485 serial ports support protocols such as Modbus RTU Slave, SNP, and Serial I/O. Ethernet communication can be added through compatible RX3i Ethernet interface modules when required by the control architecture.
For maintenance teams supporting existing GE automation installations, the IC695CPU315 remains a practical replacement CPU for established RX3i systems. To be completely transparent, processor compatibility depends on firmware revision, application software version, installed I/O modules, and network configuration. A direct hardware swap may require reviewing the existing project archive and controller settings before commissioning.
The GE IC695CPU315 is often selected for lifecycle support projects where keeping the original RX3i platform is preferred over a full control system migration.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | |
| Manufacturer | GE Fanuc / GE Intelligent Platforms |
| Product Type | CPU Module |
| Series | PACSystems RX3i |
| Processor | 1 GHz Intel Celeron-M |
| User Memory | 20 MB battery-backed RAM |
| Flash Memory | 20 MB non-volatile flash |
| Program Blocks | Up to 512 blocks |
| Maximum Block Size | 128 KB |
| Boolean Execution Speed | Approx. 0.047 ms per 1000 Boolean instructions |
| Embedded Communication Ports | RS-232, RS-485 |
| Serial Protocols | Modbus RTU Slave, SNP, Serial I/O |
| Backplane Support | RX3i PCI and high-speed serial bus |
| PCI Compatibility | PCI 2.2 electrical compliance |
| Discrete I/O Reference | Up to 32K bits %I / %Q |
| Analog Reference | Up to 32K words %AI / %AQ |
| Floating Point Support | Yes |
| Battery Support | IC695ACC302 recommended |
| Operating Temperature | 0°C to 60°C |
| Mounting | RX3i Universal Backplane |
IC695CPU315-BB
Related Products
- GE IC695CPU320 — RX3i CPU with increased memory capacity compared with the CPU315. Used for applications requiring larger program and data storage.
- GE IC695CPE330 — Newer RX3i controller platform with higher processing capability and integrated Ethernet features. Often considered during CPU modernization projects.
- GE IC695PSA040 — RX3i AC/DC power supply module used to provide rack power for CPU and I/O modules. Compatible rack infrastructure component.
- GE IC695PSD040 — 24VDC RX3i power supply option for systems using DC cabinet power distribution.
- GE IC695CHS012 — 12-slot RX3i universal backplane designed for CPU, power supply, and I/O module installation.
- GE IC695ETM001 — RX3i Ethernet interface module used to add Ethernet communication capability to CPU315-based systems.
- GE IC695ACC302 — Lithium smart battery module used for CPU memory retention. Required when battery-backed RAM retention is needed.
Frequently Asked Questions (FAQ)
1. What is the GE used for?
The is the main PLC processor for PACSystems RX3i automation systems. It executes control programs, manages system memory, and communicates with connected I/O and communication modules.
2. Can I hot-swap the GE ?
The CPU module should normally be replaced during a controlled maintenance procedure.
Recommended steps:
- Save the current controller project.
- Record firmware revision and hardware revision.
- Verify rack power conditions.
- Replace the CPU module.
- Download and validate the application before returning to operation.
3. Does the GE support firmware v3.1?
The CPU315 supports firmware upgrades, but compatibility depends on the hardware revision and installed PACSystems software environment.
Check:
- CPU catalog revision
- Proficy Machine Edition version
- Existing application requirements
- Connected RX3i modules
The firmware version alone does not determine complete compatibility.
4. Will replacing the erase my PLC logic?
Replacing the CPU does not automatically transfer the application program stored in the original processor.
Before replacement:
- Upload and save the existing project.
- Record hardware configuration.
- Confirm memory backup status.
After replacement:
- Download the approved application.
- Verify I/O mapping.
- Check controller diagnostics.
5. How can I verify a New Surplus GE ?
Recommended inspection steps:
- Confirm catalog number .
- Check CPU revision label.
- Inspect backplane connector condition.
- Verify battery status.
- Confirm startup diagnostics before field installation.
6. Is the compatible with Series 90-30 modules?
The RX3i platform supports many Series 90-30 modules and expansion hardware, but compatibility depends on the specific module type and system configuration. Engineers should verify the exact I/O list before replacement planning.
7. Is the GE suitable for PLC upgrade projects?
The is mainly used for maintaining existing RX3i installations. For modernization projects, engineers should evaluate application size, communication requirements, firmware support, spare availability, and migration effort before selecting a newer controller platform.
