GE IC695CHS012-CA Modules — PACSystems RX3i 12-Slot Universal Backplane (Conformal Coated)

Technical Dossier

Product Details And Specifications

GE PACSystems RX3i IC695 Series: Comprehensive Module Range and Technical Overview

The GE PACSystems RX3i IC695 series represents GE Automation & Controls' flagship programmable automation controller (PAC) platform, deployed across the full spectrum of heavy industrial environments — including petrochemical refineries, nuclear power generation facilities, offshore platforms, pulp and paper mills, and large-scale water treatment infrastructure. The IC695 backplane and module ecosystem is engineered for high-availability, deterministic control in applications where unplanned downtime carries direct safety and financial consequences.

The IC695CHS012-CA is a 12-slot universal backplane with conformal coating applied to the PCB assembly, providing enhanced resistance to moisture, dust, and corrosive atmospheres. It accepts any combination of IC695-series CPU, power supply, communications, and I/O modules, making it the highest-density chassis option in the RX3i family. Conformal-coated variants (suffix -CA) are specified for installations in coastal, chemical, or high-humidity environments where standard boards are not rated.

The RX3i platform holds a dominant installed base across North American and European process industries, with active deployments dating from the mid-2000s through present-day greenfield projects. Its backward compatibility with the earlier Series 90-30 (IC693) and Series 90-70 (IC697) instruction sets has made it the default migration target for legacy GE PLC infrastructure.

The Evolution of IC695 Architecture

The PACSystems RX3i platform was introduced by GE Fanuc Automation (subsequently rebranded GE Intelligent Platforms, then GE Automation & Controls, and now part of Emerson) in 2003 as a unified control architecture to consolidate the Series 90-30, Series 90-70, and VersaMax product lines under a single engineering environment (Machine Edition / Proficy).

Generation 1 (2003–2008): Initial IC695 chassis and CPUs (CPE302, CPE305) established the dual-bus backplane architecture — a standard PCI bus for high-speed module communication and a legacy serial backplane bus for backward compatibility with IC693-series I/O modules. This dual-bus design is the defining structural characteristic of all IC695 chassis, including the IC695CHS012.

Generation 2 (2008–2015): Introduction of the CPE310, CPE330, and CPE400 CPUs with expanded memory, faster scan times, and integrated Ethernet ports. The IC695CHS012 chassis remained mechanically and electrically unchanged, confirming its role as a long-lifecycle infrastructure component rather than a revision-driven product.

Generation 3 (2015–present): The CPE400 and RSTi-EP (IC695 form-factor) controllers introduced IIoT-ready firmware, OPC-UA native support, and edge computing capability. The IC695CHS012-CA conformal variant became increasingly specified as RX3i systems were deployed in more demanding field environments. Emerson's acquisition of GE's automation portfolio (2023) has not altered the IC695 hardware roadmap; the platform remains in active production with a published support commitment through 2030+.

Compatibility note: All IC695CHS012 chassis accept IC695-series modules exclusively in the universal slots. IC693-series modules require an IC695LRE001 expansion adapter. IC697-series modules are not backplane-compatible.

IC695 Full Catalog & Functionalities (SKU List)

Backplanes / Chassis

• IC695CHS012: 12-slot universal RX3i backplane, standard PCB, primary or expansion rack
• IC695CHS012-CA: 12-slot universal RX3i backplane, conformal coated, for corrosive/humid environments
• IC695CHS007: 7-slot universal RX3i backplane, standard, reduced-footprint installations
• IC695CHS007-CA: 7-slot universal RX3i backplane, conformal coated variant
• IC695CHS016: 16-slot universal RX3i backplane, maximum I/O density per rack

CPU / Controller Modules

• IC695CPE302: PACSystems RX3i CPU, 5 MB user memory, single Ethernet port, entry-level controller
• IC695CPE305: PACSystems RX3i CPU, 10 MB user memory, dual Ethernet, standard process control
• IC695CPE310: PACSystems RX3i CPU, 10 MB user memory, enhanced instruction throughput
• IC695CPE330: PACSystems RX3i CPU, 30 MB user memory, high-speed motion and process applications
• IC695CPE400: PACSystems RX3i CPU, 64 MB user memory, IIoT-ready, OPC-UA, edge analytics

Power Supply Modules

• IC695PSA040: 40W AC/DC power supply, 120/240 VAC input, standard rack power
• IC695PSA140: 40W AC/DC power supply with enhanced diagnostics and redundancy support
• IC695PSD040: 40W DC power supply, 24 VDC input, for DC-powered panel installations

Analog I/O Modules

• IC695ALG600: 8-channel universal analog input, configurable per-channel for V/mA/RTD/TC
• IC695ALG608: 8-channel analog input, 4–20 mA / 0–10 V, high-resolution 16-bit ADC
• IC695ALG616: 16-channel analog input module, high-density process measurement
• IC695ALG704: 4-channel analog output, 0–20 mA / 0–10 V, 16-bit DAC resolution
• IC695ALG728: 8-channel analog output, mixed voltage/current, for valve and actuator control

Digital I/O Modules

• IC695MDL654: 16-point 24 VDC discrete input module, sink/source configurable
• IC695MDL664: 16-point 24 VDC discrete output module, 0.5A per point, sourcing
• IC695MDL740: 32-point 24 VDC discrete input, high-density field wiring
• IC695MDL752: 32-point 24 VDC discrete output, high-density, 0.5A per point

Communications & Networking Modules

• IC695ETM001: Ethernet interface module, 10/100 Mbps, SRTP/Modbus TCP, rack-mount NIC
• IC695PBM300: PROFIBUS DP master module, up to 125 slave devices, 12 Mbps
• IC695LRE001: RX3i expansion adapter, enables IC693-series I/O in IC695 rack slots

Sourcing Hard-to-Find & Obsolete IC695 Parts

DriveKNMS maintains a dedicated inventory program for the IC695 series, with particular focus on chassis variants, legacy CPU modules, and discontinued I/O cards that are no longer available through GE/Emerson's standard distribution channels. The IC695CHS012-CA conformal coated backplane is a controlled-environment variant that sees limited secondary market availability; DriveKNMS sources these units through certified industrial surplus channels and performs full functional verification prior to dispatch.

For end-users operating RX3i systems beyond the original OEM support window, DriveKNMS provides: direct replacement sourcing for EOL modules, cross-reference identification for superseded part numbers, and multi-unit lot procurement for planned maintenance shutdowns. All IC695 units are supplied with traceability documentation and are available for immediate shipment or scheduled delivery against maintenance contracts.

Quality Control for the IC695 Range

IC695-series modules present specific test challenges due to their dual-bus backplane architecture (PCI + serial legacy bus), multi-channel analog calibration requirements, and firmware-dependent initialization sequences. DriveKNMS applies the following verification protocol to all IC695 units processed through its facility:

• Backplane continuity test: All IC695CHS012 and IC695CHS007 chassis are tested for PCI bus signal integrity across all 12/7 slots using a dedicated backplane analyzer. Slot-to-slot impedance and ground continuity are verified against GE's published electrical specifications.
• CPU boot and firmware validation: Each CPU module is powered in a known-good test rack, allowed to complete full initialization, and firmware version is logged. Modules with corrupted firmware are reflashed to the latest stable release prior to sale.
• Analog calibration verification: ALG-series modules are tested across the full input/output range (0–20 mA, 0–10 V, thermocouple, RTD) using calibrated reference instruments. Linearity error and offset are recorded and must fall within GE's published accuracy specifications.
• Conformal coating inspection: IC695CHS012-CA units undergo visual inspection under UV light to verify coating coverage uniformity, with particular attention to connector areas and high-voltage isolation zones.
• Burn-in cycle: All modules undergo a minimum 24-hour powered burn-in at ambient temperature to screen for early-life failures before shipment.