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Product Overview
The GE IC697CPM914 is a 32-bit floating-point CPU module for the GE Fanuc Series 90-70 PLC platform. It was designed for high-performance control applications requiring substantially more processing capability than earlier Series 90-70 processors. The module uses a 32 MHz processor architecture and provides 512 KB of onboard user memory. GE product documentation identifies the CPM914 as the Series 90-70 Model 914 CPU, while later documentation records multiple hardware revisions and identifies the CPM914 as a processor used in redundant control architectures.
The unit occupies one PLC rack slot and includes a serial programming interface, allowing connection to a workstation interface or programming computer. It can also work with optional Series 90-70 communication and expansion modules. For plants maintaining legacy GE PLC installations, the module remains relevant as a replacement CPU where the original rack configuration, firmware generation, and application program must be preserved.
Technical Specifications — IC697CPM914
| Parameter | Value |
|---|---|
| Product Model | IC697CPM914 |
| Manufacturer | GE Fanuc / General Electric |
| Product Type | PLC CPU Module |
| PLC Series | Series 90-70 |
| CPU Model | Model 914 |
| Processor | 32-bit floating-point CPU |
| Clock Speed | 32 MHz |
| User Memory | 512 KB onboard memory |
| Power | 5 VDC, approximately 2.8 A nominal |
| Communication / Protocol | RS-422/RS-485 serial programming interface; SNP-related communications |
| Serial Connector | 15-pin D-type |
| Mounting | Single Series 90-70 rack slot |
| Operating Temperature | 0 to 60 °C |
| Relative Humidity | 5 to 95% |
| Typical Interfaces | PLC backplane, serial programming port, optional communication modules |
| Application | Process control, machine automation, legacy industrial PLC systems |
The 32 MHz, 512 KB specification is documented in Series 90-70 hardware references, while supplier technical data confirms the 5 VDC power requirement and serial interface characteristics.
Key Features and Benefits — IC697CPM914
- 32-bit floating-point processing for demanding Series 90-70 control programs.
- 32 MHz processor speed suitable for relatively complex legacy PLC applications.
- 512 KB onboard user memory for application storage.
- One-slot installation within the Series 90-70 PLC rack.
- Integrated serial interface for programming and workstation communication.
- Supports expansion through compatible Ethernet, coprocessor, bus controller, and I/O modules.
- Four front-panel status indicators provide basic operating diagnostics.
Personally, I would pay more attention to the revision suffix than to the base catalog number alone. GE issued numerous CPM914 revisions, and technical documentation specifically records hardware and firmware changes across these revisions.
GE IC697CPM914
Related Models
IC697CPM924 — A later Series 90-70 CPU that replaced the CPM914 and provides 32 MHz, 32-bit floating-point processing with 1 MB of onboard user memory.
IC697CPM915 — Related 32 MHz floating-point CPU with 1 MB onboard user memory and a later generation of the Series 90-70 processor family.
IC697CPM925 — A higher-speed 64 MHz floating-point CPU with 1 MB onboard user memory, intended for applications requiring greater processing capacity.
IC697CPU781 — Another Series 90-70 CPU family member, using a 16 MHz 32-bit architecture for expandable PLC applications.
Installation and Maintenance — IC697CPM914
Before replacement, verify the complete catalog number and revision suffix, CPU firmware, application memory requirements, rack configuration, and communication setup. Because this is legacy equipment, preserving the existing program and recording configuration data before removal is particularly important.
During maintenance, inspect the backplane connector, module edge contacts, battery condition, and front-panel indicators. The CPU configuration is software-based rather than controlled by onboard DIP switches, so the replacement unit should be configured through the appropriate programming environment.
Product Warranty — IC697CPM914
Warranty coverage depends on the supplier and equipment condition. For a replacement GE IC697CPM914, confirm whether the unit is new, refurbished, or surplus, and request revision information, serial-number traceability, functional test results, and the applicable warranty period.
For legacy Series 90-70 systems, exact revision matching is strongly recommended because documented CPM914 hardware and firmware revisions are not necessarily interchangeable without qualification.
