GE IC697CPM790 Single Slot CPU Module
The GE IC697CPM790 is a high-performance single-slot CPU module from the GE Fanuc Series 90‑70 PLC line (now Emerson). Built around a 64 MHz 80486DX2 processor, it delivers high-speed logic execution and 32‑bit floating-point math capability for complex process control. It serves as the central “brain” of the PLC system, managing I/O, user programs, network communications, and system diagnostics.
Key Applications
- Process Automation: Executes sequential and regulatory control for continuous/ batch processes.
- Critical Safety Systems: Emergency Shutdown (ESD), fire & gas, and SIL 3–capable applications.
- Medium-to-Large PLC Systems: Controls up to 12K discrete I/O and 8K analog I/O (simplex mode).
- Distributed Control: Interfaces with IC660/IC661 remote I/O and Series 90‑70 local I/O.
- Data Acquisition & Communication: High‑speed data handling and integration with SCADA/host systems.
Specifications
| Parameter | IC697CPM790 |
|---|---|
| Processor | 80486DX2 @ 64 MHz |
| Execution Speed | 0.4 µs/Boolean instruction |
| User Logic Memory | 512 KB (battery‑backed RAM) |
| Total On‑board Memory | 1 MB (battery‑backed) |
| Memory Backup | Lithium battery (IC697ACC701); 6‑month retention |
| Discrete I/O (Simplex) | 12,000 points (any mix) |
| Voted Discrete I/O | 2,048 inputs / 2,048 outputs |
| Analog I/O (Simplex) | 8,000 words |
| Voted Analog Inputs | 1,024 channels |
| Communication Port | 1 × RS‑422/485 (15‑pin) |
| Power Requirement | 5 VDC, 3.2 A (16 W) |
| Dimensions (W × H × D) | 140 mm × 110 mm × 44 mm |
| Weight | Approx. 1.2 kg (2.6 lb) |
| Status Indicators | 4 LEDs (Power, Run, Fault, TMR Sync) |
| Firmware Storage | Flash memory (field‑upgradable) |
Operating Environment
| Parameter | Specification |
|---|---|
| Operating Temperature | 0 °C to +40 °C (32 °F to 104 °F) (natural air); 0 °C to +60 °C (32 °F to 140 °F) (forced air) |
| Storage Temperature | −40 °C to +85 °C (−40 °F to 185 °F) |
| Relative Humidity | 5%–95% (non‑condensing) |
| Cooling | Forced air (70 CFM) required above 40 °C; uses IC697ACC721 fan assembly |
| Enclosure Rating | Designed for industrial control cabinets (IP20/IP54 typical) |
| Vibration | 1 g (10 Hz–150 Hz) |
| Certifications | UL, CE, TÜV (SIL 3 compliant) |
Typical Industries
- Oil & Gas: ESD, process control, and safety systems.
- Power Generation: Thermal, hydro, and combined‑cycle plant controls.
- Metals & Mining: Heavy process lines, furnace control, and material handling.
- Chemical & Petrochemical: Batch/continuous processing and safety instrumented systems.
- Water/Wastewater: Large treatment plants and pumping station automation.
Related Series Products
-
IC697CPX772
- Single‑slot CPU, 96 MHz processor.
- 3 × serial ports (1×RS‑232, 2×RS‑485); supports 12K I/O
-
IC697CPX935
- High‑end CPU, 96 MHz; 1 MB RAM, 256 KB flash user memory.
- Advanced communications and redundant system support
-
IC697BEM734
- Genius Bus Controller (single‑channel) for distributed I/O.
- Manages communication with remote Genius I/O blocks in 90‑70 systems.
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