GE IC698CRE030 Replacement for PACSystems RX7i

Product Overview

GE IC698CRE030 Replacement for PACSystems RX7i: Smooth Migration from Legacy GE Series 90-70 Systems

The GE IC698CRE030 is a high-performance CPU module designed for the GE PACSystems RX7i control platform. For facilities currently operating legacy GE Series 90-70 systems — including CPU modules such as the IC697CPU772, IC697CPU781, or IC697CPU788 — migrating to the IC698CRE030 represents a well-supported, field-proven upgrade path that preserves existing rack infrastructure, minimizes rewiring, and dramatically reduces engineering rework.

The IC698CRE030 operates within the standard IC698 rack family, meaning it is physically compatible with existing IC698 Series backplanes and power supplies such as the IC698PSA100 and IC698PSA350. Engineers transitioning from a Series 90-70 rack will find that the RX7i platform accepts the same I/O module footprint in many configurations, allowing selective reuse of analog and discrete I/O modules already installed in the control cabinet. This significantly reduces the bill of materials for a retrofit project and shortens the commissioning window.

From a communications standpoint, the IC698CRE030 supports both embedded Ethernet (10/100 Mbps) and serial RS-232/RS-485 interfaces, enabling direct integration with SCADA systems, HMI panels, and field devices using Modbus RTU, Modbus TCP/IP, SRTP, and EGD (Ethernet Global Data) protocols. Facilities migrating from older CPUs that relied on IC697CMM711 or IC697CMM742 serial communication modules will find that many of those protocol mappings can be replicated natively within the RX7i environment, reducing the need for additional communication co-processors.

For programming continuity, the IC698CRE030 is fully supported by GE’s Proficy Machine Edition (PME) software environment. Ladder logic, Function Block Diagram, and Structured Text programs developed for earlier Series 90-70 CPUs can be imported and converted using PME’s migration utilities, preserving the majority of existing program logic, variable tables, and I/O mapping. This is a critical advantage for facilities where the original PLC program documentation is incomplete or where re-engineering from scratch would introduce unacceptable risk.

Physical installation is straightforward. The IC698CRE030 occupies a single slot in the IC698 rack and requires no additional mounting hardware beyond what is already present in a standard RX7i enclosure. Power draw is compatible with the IC698PSA100 power supply module, and the module’s front-panel LED indicators provide real-time diagnostics for CPU status, communications activity, and fault conditions — simplifying field troubleshooting during commissioning.

For sites that require expanded I/O capacity as part of the upgrade, the IC698CRE030 supports remote I/O expansion via Genius Bus (IC660 series field control modules) and Profibus DP through optional communication modules such as the IC698PBM300. This allows the upgraded RX7i system to maintain connectivity with existing Genius I/O drops already installed in the plant, protecting prior infrastructure investment while gaining the processing power and memory capacity of the modern RX7i platform.

In distributed control architectures where the IC698CRE030 serves as a peer controller alongside other RX7i or RX3i nodes, the module’s EGD protocol support enables high-speed, deterministic data exchange between controllers without requiring a dedicated communication co-processor. This is particularly valuable in upgrade projects where the existing control network uses a mix of IC693 RX3i and IC698 RX7i hardware, as both platforms share a common programming environment and communication framework.

From a procurement and project planning perspective, sourcing a verified IC698CRE030 replacement unit through TOPNLMS ensures that the module has been tested for basic operational integrity prior to shipment. Each unit is shipped with protective packaging appropriate for international freight, and our standard 12-month warranty covers manufacturing defects and functional failures under normal operating conditions. We maintain stock of IC698CRE030 and related RX7i platform components to support both emergency breakdown replacements and planned upgrade projects.

Compatibility Comparison Table

Seamless Upgrade Solutions

A complete migration from a Series 90-70 system to the PACSystems RX7i platform typically involves more than a CPU swap. The IC698CRE030 is most effectively deployed alongside a set of supporting modules that ensure the upgraded system matches or exceeds the functional scope of the original installation.

For power distribution within the new rack, the IC698PSA100 power supply module provides regulated 5 VDC and 3.3 VDC rails sufficient for a fully populated IC698 rack. In high-availability applications, a redundant power supply configuration using a second IC698PSA100 or IC698PSA350 is recommended. Discrete I/O requirements are typically addressed using IC698MDL740 (32-point 24 VDC input) and IC698MDL940 (32-point 24 VDC output) modules, which slot directly into the IC698 rack without additional wiring adapters.

For analog signal handling — common in process control applications involving temperature, pressure, or flow measurement — the IC698ALG230 analog input module and IC698ALG728 analog output module provide 16-channel resolution with configurable signal ranges. These modules replace older IC697ALG230 and IC697ALG440 analog cards with improved accuracy and faster scan rates.

Where the existing plant network relies on Profibus DP for field device communication, the IC698PBM300 Profibus DP master module integrates directly into the RX7i rack and allows the IC698CRE030 to manage Profibus slaves — including variable frequency drives, remote I/O stations, and smart transmitters — without requiring a separate gateway device. For sites using DeviceNet, a similar integration path is available through compatible communication modules in the IC698 family.

HMI connectivity is typically handled through the embedded Ethernet port on the IC698CRE030, allowing direct communication with CIMPLICITY, iFIX, or third-party HMI panels using OPC DA or Modbus TCP/IP. In cases where a legacy IC697 HMI panel used a dedicated serial connection, a simple RS-232 cable from the IC698CRE030’s serial port can maintain that link during the transition period, allowing phased HMI replacement without a full cutover.

Programming and firmware updates are performed via the IC698CRE030’s Ethernet port using Proficy Machine Edition, eliminating the need for a dedicated programming cable or serial adapter in most installations. For sites that require a direct serial programming connection, a standard RS-232 null-modem cable to a laptop running PME is sufficient.

Retrofit Guidance FAQ

Q: Can I reuse my existing Series 90-70 I/O wiring when migrating to the IC698CRE030?
A: In most cases, yes. If you are reusing IC697-series discrete I/O modules in an IC698 rack via a compatibility adapter, the field wiring terminations remain unchanged. If you are replacing I/O modules with IC698-series equivalents, the terminal block pinout is similar but should be verified against the IC698 module datasheet before reconnection.

Q: Will my existing Logicmaster 90 or PME program run on the IC698CRE030 without modification?
A: Programs originally developed in Logicmaster 90 must first be imported into Proficy Machine Edition and converted to the RX7i target. Most standard ladder logic, timers, counters, and data blocks convert cleanly. Custom C blocks or hardware-specific function calls may require review and adaptation.

Q: Does the IC698CRE030 support Modbus RTU for legacy field device communication?
A: Yes. The IC698CRE030 supports Modbus RTU over its embedded RS-232 and RS-485 serial ports, and Modbus TCP/IP over its embedded Ethernet port. No additional communication module is required for standard Modbus applications.

Q: How much physical space does the IC698CRE030 require in the control cabinet?
A: The IC698CRE030 occupies a single slot in a standard IC698 rack. The IC698 rack is available in 7-slot, 12-slot, and 17-slot configurations. If you are replacing an IC697 rack, the IC698 rack has a similar DIN-rail or panel-mount footprint, though exact cabinet cutout dimensions should be verified before installation.

Q: What is the recommended procedure for a hot-cutover replacement of a failed IC697 CPU with the IC698CRE030?
A: A direct hot-swap is not possible between IC697 and IC698 platforms due to rack incompatibility. The recommended approach is a planned shutdown, rack replacement, I/O module transfer or replacement, program download via PME, and a controlled restart with I/O verification before returning the system to production. TOPNLMS can provide pre-tested units to minimize the time the system is offline.

Warranty Assurance

Every IC698CRE030 unit supplied by TOPNLMS is covered by a 12-month warranty from the date of shipment. Prior to dispatch, each module undergoes a basic power-on and communication verification test to confirm that the unit initializes correctly and that its Ethernet and serial interfaces are functional. Units that do not pass this check are not shipped.

In the event of a warranty claim, TOPNLMS will assess the reported fault and, where confirmed to be a manufacturing or functional defect, arrange a replacement unit at no additional cost. Our standard response time for warranty inquiries is within 1 business day. Replacement units are dispatched from our Xiamen warehouse, with express international shipping available for urgent breakdown situations.

For procurement teams requiring documentation, we can provide a test report, packing list, and commercial invoice with each shipment. Lead times for in-stock IC698CRE030 units are typically 3–7 business days for international destinations, with DHL Express and FedEx International Priority available as shipping options.

We understand that unplanned downtime in an industrial control system carries significant operational and financial consequences. Our goal is to ensure that every replacement unit we supply performs reliably from the moment it is installed, and that any post-sale issues are resolved quickly and without friction.

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