GE EPSCPE115-AAAB Standalone Controller

Technical Dossier

Product Details And Specifications

GE EPSCPE115 Series: Comprehensive Module Range and Technical Overview

The GE Intelligent Platforms (now part of Emerson Automation Solutions) EPSCPE115 series is a standalone programmable controller platform deployed extensively across global heavy industry verticals including petrochemical refineries, nuclear power generation facilities, offshore oil & gas platforms, and continuous-process chemical plants. The EPSCPE115-AAAB variant represents the baseline hardware revision of this controller family, designed for deterministic real-time control with integrated Ethernet connectivity and compatibility with GE's PACSystems RX3i and legacy Series 90 I/O ecosystems. Its installed base spans facilities in North America, the Middle East, and Southeast Asia where long-lifecycle DCS and hybrid PLC architectures remain the operational standard.

The Evolution of EPSCPE115 Architecture

The EPSCPE115 controller belongs to GE's PACSystems CPE (Controller Processing Engine) product line, which succeeded the legacy GE Fanuc Series 90-30 and Series 90-70 CPU families. The architectural transition introduced a unified programming environment under Proficy Machine Edition, replacing the earlier Logicmaster and Control software toolsets. Key milestones in the EPSCPE115 lineage include:

• Early CPE generation (CPE010/CPE020): Entry-level standalone controllers with limited Ethernet throughput, targeting small-to-medium machine control applications.
• CPE100/CPE115 generation: Mid-range controllers with dual Ethernet ports, expanded memory (up to 64 MB user memory on CPE115), and support for IEC 61131-3 structured text, ladder diagram, function block diagram, and sequential function chart programming languages.
• CPE115 hardware revisions (AAAB → ABAB → ACAB): Successive board revisions addressed EMI compliance, firmware stability under high-scan-rate conditions, and compatibility with newer RX3i backplane revisions (IC695CHS012, IC695CHS016).
• CPE302/CPE400 successors: Current-generation controllers with integrated motion control, OPC UA server, and IIoT-ready architecture. These represent the recommended migration path for facilities planning EPSCPE115 lifecycle extensions beyond 2030.

Compatibility note: EPSCPE115 modules require PACSystems RX3i Universal Backplane (IC695CHS012 or IC695CHS016) and are not directly interchangeable with RX7i or RX3i CPE302 backplane configurations without hardware adaptation.

EPSCPE115 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified components within the GE PACSystems RX3i EPSCPE115 ecosystem. Each entry reflects a distinct hardware revision, I/O module, or system accessory confirmed within GE Intelligent Platforms product documentation.

Controllers & CPU Modules

• EPSCPE115-AAAB: PACSystems RX3i standalone controller, Rev AAAB, dual Ethernet, 64 MB user memory, IEC 61131-3.
• EPSCPE115-ABAB: Rev ABAB hardware update; improved EMI shielding and firmware stability for high-cycle applications.
• EPSCPE115-ACAB: Rev ACAB; extended operating temperature tolerance and enhanced backplane communication diagnostics.
• IC695CPE115: Standard catalog number for EPSCPE115 controller in RX3i rack-mount configuration.
• IC695CPE302: Next-generation successor controller; recommended migration target for EPSCPE115 end-of-life planning.

Analog & Digital I/O Modules

• IC695ALG600: 8-channel universal analog input module; supports voltage, current, RTD, and thermocouple inputs.
• IC695ALG608: 8-channel analog output module; 4–20 mA / 0–10 V configurable per channel.
• IC695MDL654: 32-point 24 VDC discrete input module; high-density DI for process interlocking.
• IC695MDL664: 32-point 24 VDC discrete output module; sourcing type, 0.5 A per point.
• IC695MDL740: 16-point relay output module; 2 A per point, suitable for motor starter and valve actuator control.
• IC695MDL760: 16-point 120 VAC discrete input module; for legacy field device integration.

Communication & Network Adapters

• IC695ETM001: Ethernet transmitter module; 10/100 Mbps, supports SRTP, Modbus TCP, EGD protocols.
• IC695PBM300: PROFIBUS DP master module; up to 125 slave devices, 12 Mbps.
• IC695CMM002: Serial communications module; RS-232/RS-485, supports SNP, Modbus RTU, and ASCII protocols.
• IC695RMX128: Redundancy memory exchange module; used in hot-standby CPU redundancy configurations.

Power Supply Modules

• IC695PSA040: 40 W AC power supply; 120/240 VAC input, 5 VDC / 3.3 VDC backplane output.
• IC695PSD040: 40 W DC power supply; 24 VDC input, for battery-backed or DC-only panel installations.
• IC695PSA140: 140 W high-capacity AC power supply; for fully populated 16-slot RX3i racks.

Sourcing Hard-to-Find & Obsolete EPSCPE115 Parts

GE Intelligent Platforms formally transitioned the EPSCPE115 product line to a mature/limited-availability status following the broader PACSystems portfolio consolidation under Emerson. OEM lead times for EPSCPE115-AAAB and associated Rev A hardware have extended significantly, with some sub-assemblies classified as last-time-buy or no-longer-manufactured (NLM).

DriveKNMS maintains a dedicated inventory program for EPSCPE115 lifecycle support, covering:

• New-surplus and refurbished EPSCPE115-AAAB, ABAB, and ACAB controller units with full functional verification.
• Cross-referenced I/O module stock (IC695ALG600, IC695MDL654, IC695MDL664) for rapid unplanned outage response.
• Firmware version matching to ensure compatibility with existing Proficy Machine Edition project files without re-commissioning.
• Long-term supply agreements (LTSA) for facilities requiring guaranteed EPSCPE115 availability through 2030 and beyond.
• Emergency same-day dispatch capability for critical process industries operating under unplanned shutdown conditions.

Quality Control for the EPSCPE115 Range

EPSCPE115 controllers and associated RX3i modules undergo a structured multi-stage inspection protocol at DriveKNMS prior to dispatch:

• Visual & mechanical inspection: Backplane connector pin integrity, capacitor condition assessment, conformal coating evaluation, and label/revision verification against GE part number databases.
• Power-on functional test: Each EPSCPE115 unit is powered in an RX3i test rack (IC695CHS012) and subjected to a full boot cycle, CPU self-diagnostic pass, and Ethernet port link verification.
• Communication bus validation: Backplane CSST (Controller-to-Scanner Serial Transport) bus integrity is verified using GE-compatible diagnostic tooling to confirm error-free I/O module enumeration across all rack slots.
• Firmware audit: Installed firmware version is documented and compared against the customer's existing system version to flag any compatibility deltas before shipment.
• Burn-in cycle: Units flagged as refurbished undergo a minimum 48-hour powered burn-in under simulated scan-cycle load to screen for latent component failures.
• Final documentation: Each unit ships with a test report, revision label photograph, and warranty certificate valid for 12 months from dispatch date.