GE EPSCPE100-ABAA EPS CPE100 Series Modules

Technical Dossier

Product Details And Specifications

GE EPS CPE100 Series Technical Notes

The GE EPS CPE100 series is a central processing and I/O expansion platform developed under GE Automation & Controls (formerly GE Fanuc Automation), designed for deployment in high-availability industrial environments including petrochemical refineries, nuclear power generation facilities, offshore platforms, and large-scale chemical processing plants. The CPE100 architecture operates within GE's broader EPS (Enhanced Performance Series) control ecosystem, providing deterministic scan-cycle execution, redundant backplane communication, and compatibility with legacy Series 90-70 I/O racks. Installed base penetration across global heavy industry remains significant, making long-term spare parts availability a critical operational requirement for plant maintenance teams.

The Evolution of EPS CPE100 Architecture

The CPE100 platform emerged as GE's response to the demand for higher-throughput CPU modules within the Series 90-70 rack infrastructure. Early revisions (Rev A, Rev B) established the baseline 32-bit processing architecture with VME-compatible backplane signaling. Subsequent hardware revisions introduced expanded onboard memory, enhanced Ethernet port integration, and improved coprocessor support for floating-point operations. The EPSCPE100-ABAA specifically represents a factory-configured DEMO variant, used for system validation, FAT (Factory Acceptance Testing), and integration lab environments rather than live process control. As GE's automation portfolio transitioned through the Emerson acquisition and subsequent rebranding cycles, the CPE100 series entered a mature/end-of-active-production phase. Replacement migration paths include the PACSystems RX7i CPE310 and CPE330 platforms, which offer backward-compatible I/O rack mounting but require updated programming via Proficy Machine Edition. For plants committed to the existing CPE100 infrastructure, lifecycle extension through certified refurbished spares remains the most cost-effective continuity strategy.

EPS CPE100 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly stocked models within the GE EPS CPE100 series. Each entry reflects a distinct hardware configuration or firmware revision level.

CPU / Controller Modules

• EPSCPE100-ABAA: CPE100 CPU module, DEMO configuration, 32-bit processor, VME backplane, Series 90-70 rack compatible
• EPSCPE100-ABBA: CPE100 CPU module, standard production release, expanded onboard RAM, dual Ethernet ports
• EPSCPE100-ACAA: CPE100 Rev C CPU, enhanced coprocessor, improved floating-point throughput, hot-standby redundancy support
• EPSCPE100-ADAA: CPE100 Rev D CPU, updated firmware baseline, extended temperature tolerance, conformal coating option
• EPSCPE100-AEAA: CPE100 Rev E CPU, final production revision, integrated diagnostics port, compatible with Proficy HMI/SCADA

Analog Input (AI) Modules

• IC697ALG230: 16-channel analog input, 4–20 mA / 0–10 V, 12-bit resolution, Series 90-70 rack mount
• IC697ALG231: 16-channel analog input, high-density, 13-bit resolution, isolated channels
• IC697ALG320: 8-channel analog input, thermocouple/RTD, cold junction compensation, DIN rail compatible

Analog Output (AO) Modules

• IC697ALG320D: 8-channel analog output, 4–20 mA, 12-bit DAC, short-circuit protected outputs
• IC697ALG440: 4-channel analog output, ±10 V / 0–10 V selectable, 14-bit resolution

Digital Input (DI) Modules

• IC697MDL340: 32-channel 24 VDC digital input, sink/source configurable, LED status per channel
• IC697MDL341: 32-channel 120 VAC digital input, optical isolation, surge suppression
• IC697MDL653: 16-channel 24 VDC digital input, high-speed, interrupt-capable, for encoder/pulse applications

Digital Output (DO) Modules

• IC697MDL940: 32-channel 24 VDC digital output, 0.5 A per channel, short-circuit protection
• IC697MDL753: 16-channel relay output, Form C contacts, 2 A per channel, 120/240 VAC rated

Communication / Network Adapters

• IC697CMM742: Ethernet TCP/IP communications module, 10/100 Mbps, SRTP and Modbus TCP support
• IC697CMM711: Genius Bus Controller, high-speed serial bus, up to 32 devices per segment

Power Supply Modules

• IC697PWR711: 120/240 VAC input power supply, 30 W output, Series 90-70 rack, redundancy capable
• IC697PWR724: 24 VDC input power supply, 30 W, battery-backed memory retention, rack-mount

Quality Control for the EPS CPE100 Range

CPE100 modules present specific test challenges due to their VME backplane architecture and multi-layer firmware dependency. DriveKNMS applies a structured test protocol for each unit: (1) Visual inspection for capacitor degradation, PCB trace corrosion, and connector pin integrity; (2) Backplane communication verification using a Series 90-70 test rack with known-good I/O population; (3) CPU scan-cycle benchmark against OEM specification sheets to confirm deterministic execution timing; (4) Memory retention test for battery-backed SRAM, including a 72-hour discharge/recharge cycle; (5) Ethernet port functional test using SRTP and Modbus TCP loopback; (6) Final burn-in at rated operating temperature for a minimum of 8 hours. Units that do not pass all six stages are quarantined and not offered for sale.