GE EPSCPE100 Modules

Technical Dossier

Product Details And Specifications

GE EPSCPE100 Series: Comprehensive Module Range and Technical Overview

The GE EPSCPE100 series represents GE Intelligent Platforms' (now Emerson Automation Solutions) standalone CPU controller line deployed across global heavy industry sectors including petrochemical refineries, nuclear power generation facilities, offshore oil & gas platforms, and large-scale chemical processing plants. The EPSCPE100 controller operates as a standalone unit within GE's PACSystems architecture, providing deterministic scan-cycle execution, high-availability I/O management, and Ethernet-based supervisory connectivity. Its installed base spans legacy DCS migration projects and greenfield PLC deployments where long-term vendor support and backward compatibility are primary procurement criteria.

The Evolution of EPSCPE100 Architecture

The EPSCPE100 series traces its lineage to GE Fanuc's Series 90-30 and Series 90-70 PLC platforms, which established GE's foothold in process-critical automation during the 1990s. As industrial Ethernet and IEC 61131-3 programming standards matured, GE Intelligent Platforms introduced the PACSystems RX3i backplane architecture, into which the EPSCPE100 CPU family was integrated as a standalone controller variant capable of operating without a dedicated rack in space-constrained panel environments.

Key architectural milestones include the transition from RS-485 serial fieldbus to dual-port Ethernet (10/100 Mbps), the introduction of embedded web server diagnostics, and support for SRTP (Service Request Transfer Protocol) for peer-to-peer CPU communication. Later firmware revisions added EGD (Ethernet Global Data) multicast support, enabling real-time data exchange across distributed plant networks without OPC middleware. The EPSCPE100-ABAE variant specifically incorporates enhanced memory allocation and expanded I/O point capacity relative to earlier EPSCPE100 base configurations, making it the preferred replacement unit in retrofit and life-extension projects.

Compatibility considerations: EPSCPE100 modules are backward-compatible with IC693 and IC694 series I/O expansion racks when used with appropriate adapter modules. Direct integration with IC695 (RX3i) backplane hardware requires firmware version alignment and may necessitate configuration tool upgrades in Proficy Machine Edition (PME).

EPSCPE100 Full Catalog & Functionalities (SKU List)

The following SKUs represent the verified EPSCPE100 series and closely associated GE PACSystems standalone controller and expansion modules. Each entry reflects a distinct hardware configuration or I/O classification:

EPSCPE100-ABAE: Standalone CPU controller, dual Ethernet, 512KB user memory, EGD support
EPSCPE100-ABAG: Standalone CPU, extended firmware revision, enhanced diagnostics logging
EPSCPE100-ABAH: Standalone CPU, conformal-coated PCB for high-humidity environments
IC695CPE305: PACSystems RX3i CPU, 5MB memory, USB programming port, Ethernet embedded
IC695CPE310: RX3i CPU, 10MB user memory, dual Ethernet, motion coordination capable
IC695CPE330: RX3i CPU, 30MB memory, high-speed backplane, IEC 61131-3 compliant
IC695CPE400: RX3i CPU, 64MB memory, advanced process control, redundancy-ready
IC695ETM001: RX3i Ethernet transmitter module, 10/100 Mbps, SRTP/EGD/Modbus TCP
IC695PBM300: PROFIBUS DP master module, up to 125 slave nodes, 12 Mbps
IC695RMX128: RX3i redundancy memory exchange module, hot-standby CPU sync
IC694MDL340: 24VDC discrete input module, 32-point, Series 90-30 compatible
IC694MDL390: 120VAC discrete input module, 16-point, isolated commons
IC694MDL740: 24VDC discrete output module, 32-point, 0.5A per point
IC694ALG220: Analog input module, 4-channel, 4–20mA / 0–10V configurable
IC694ALG390: Analog output module, 4-channel, 12-bit resolution, 4–20mA
IC694PWR330: 120/240VAC power supply module, 30W, Series 90-30 rack mount
IC695PSA040: RX3i 40W power supply, 24VDC input, universal backplane compatible
IC695CHS016: RX3i 16-slot universal backplane chassis, passive bus architecture

Sourcing Hard-to-Find & Obsolete EPSCPE100 Parts

The EPSCPE100 series has entered the mature-to-end-of-life phase of its product lifecycle. GE Intelligent Platforms (now operating under Emerson's PACSystems brand) has progressively discontinued active manufacturing of EPSCPE100 hardware, with standard repair and replacement support windows closing for earlier sub-variants. This creates a critical sourcing gap for plant operators running multi-year maintenance contracts or operating facilities with 15–25 year equipment lifecycles.

DriveKNMS maintains a dedicated inventory of EPSCPE100 series controllers and associated PACSystems modules sourced through certified secondary market channels. Our procurement process targets factory-surplus, decommissioned-plant, and OEM-overstock units, each subject to incoming inspection before entering available inventory. For end-users facing EOL (End-of-Life) notifications from Emerson, DriveKNMS provides direct substitution recommendations, cross-reference mapping to current IC695CPE-series equivalents, and multi-unit buffer stock agreements to support planned maintenance outages.

Quality Control for the EPSCPE100 Range

EPSCPE100 controllers integrate a multi-layer backplane communication bus and dual Ethernet PHY subsystem that require targeted validation beyond standard power-on testing. DriveKNMS applies the following inspection protocol to all EPSCPE100 units processed through our facility:

Visual & Physical Inspection: PCB surface examination for corrosion, capacitor bulge, solder joint fatigue, and connector pin integrity. Conformal coating condition assessed on coated variants (ABAH suffix).

Backplane Bus Verification: Unit seated in compatible IC695CHS016 or IC694 rack; backplane data and power rails verified under load using calibrated bus analyzer. Token-passing and I/O scan cycle integrity confirmed.

Ethernet Port Functional Test: Both Ethernet ports tested for link negotiation (10/100 Mbps auto), SRTP session establishment, and EGD multicast transmission using Proficy Machine Edition test environment.

CPU Execution Test: Ladder logic and structured text test programs executed across full scan-cycle range. Memory read/write integrity verified across full 512KB user memory map.

Firmware Version Audit: Installed firmware documented and compared against GE/Emerson compatibility matrix. Downgrade or upgrade performed on request to match target system configuration.

All units ship with a DriveKNMS inspection report and 12-month functional warranty against defects identified post-delivery.