GE IC695CHS016CA Replacement for PACSystems RX3i

Product Overview

GE IC695CHS016CA Replacement for PACSystems RX3i: Seamless Transition & Compatibility Upgrade

The GE IC695CHS016CA is a 16-slot universal backplane designed for the GE PACSystems RX3i control platform. As legacy RX3i installations age and original backplanes reach end-of-life or become difficult to source, the IC695CHS016CA serves as the direct replacement and upgrade path for engineers managing brownfield modernization projects. Whether you are replacing a failed IC694CHS392 (Series 90-30 rack) or migrating from an older RX3i chassis such as the IC695CHS012 (12-slot) to gain additional I/O capacity, this backplane provides a physically and electrically compatible foundation for your upgraded control system.

The IC695CHS016CA supports all standard RX3i CPU modules, including the IC695CPE302, IC695CPE305, and IC695CPE330, as well as the IC695PSD040 power supply module. Its universal slot architecture accepts both RX3i-native modules and legacy Series 90-30 I/O modules via the IC695LRE001 expansion adapter, making it an ideal platform for phased migration strategies where not all field I/O can be replaced simultaneously. This backward compatibility significantly reduces rewiring costs and minimizes production downtime during cutover.

From a wiring and installation perspective, the IC695CHS016CA maintains the same DIN-rail and panel-mount footprint as earlier RX3i chassis variants. Field wiring connected to existing terminal blocks, I/O modules such as the IC695MDL654 discrete input module or IC695ALG600 analog input module, and communication modules including the IC695ETM001 Ethernet interface module can be retained without modification. The backplane’s internal bus architecture is fully compatible with RX3i-generation modules, ensuring that existing Proficy Machine Edition ladder logic programs, function block diagrams, and structured text routines require no recompilation when the chassis is swapped.

Communication protocol continuity is a critical concern in any control system migration. The IC695CHS016CA supports all RX3i-compatible communication modules, including PROFINET, EtherNet/IP, Modbus TCP, and serial protocols via the IC695CMM002 or IC695CMM004 communication modules. If your existing system relies on GENIUS bus I/O or DeviceNet, the appropriate bus controller modules can be re-seated into the new backplane without reconfiguration, preserving your field device topology and reducing engineering hours during commissioning.

For control cabinet space planning, the 16-slot chassis occupies a standard horizontal mounting profile. Engineers replacing a 12-slot IC695CHS012 should verify cabinet depth and width clearances before installation, as the additional four slots extend the chassis width. Power budget calculations should account for the IC695PSD040 or IC695PSA040 power supply module’s output capacity relative to the total module load, particularly when high-density analog or specialty communication modules are installed.

Procurement and inventory considerations are equally important. Sourcing a verified replacement IC695CHS016CA from a reliable distributor with documented testing procedures ensures that the unit performs to GE Automation & Controls specifications upon installation. At TOPNLMS, each IC695CHS016CA unit undergoes functional verification prior to shipment, covering backplane bus integrity, slot connector condition, and power rail continuity. Units are shipped with protective packaging to prevent ESD damage and physical connector damage during transit.

Compatibility Comparison Table

Seamless Upgrade Solutions

A complete RX3i migration typically involves more than the backplane itself. When replacing the IC695CHS016CA chassis, engineers commonly source the IC695PSD040 DC power supply module to ensure adequate power headroom for expanded I/O configurations. Discrete I/O requirements are typically met with modules such as the IC695MDL654 (16-point 24VDC input) or IC695MDL764 (16-point relay output), while analog signal acquisition relies on the IC695ALG600 or IC695ALG616 analog input modules. Network connectivity is maintained through the IC695ETM001 Ethernet interface module, which supports EtherNet/IP and Modbus TCP without additional configuration when migrating from an existing RX3i network segment.

For sites retaining legacy Series 90-30 I/O in the field, the IC695LRE001 remote expansion adapter allows existing IC694 series I/O modules to be mounted in the new 16-slot chassis, eliminating the need for immediate field rewiring. Programming and firmware updates during commissioning are performed via the IC690USB901 USB-to-serial programming cable or directly over Ethernet using Proficy Machine Edition, with no changes required to existing project logic when only the chassis is replaced.

Retrofit Guidance FAQ

Q: Can I reuse my existing RX3i CPU and I/O modules in the IC695CHS016CA?
A: Yes. All RX3i-generation CPU modules (IC695CPE302, IC695CPE305, IC695CPE330) and I/O modules seat directly into the IC695CHS016CA without modification. Firmware versions should be verified against GE compatibility matrices prior to installation.

Q: Will my existing ladder logic program need to be recompiled?
A: No. Replacing only the backplane chassis does not require recompilation of Proficy Machine Edition projects. I/O addressing and module slot assignments are preserved as long as modules are reinstalled in the same slot positions.

Q: Is the IC695CHS016CA compatible with PROFINET and EtherNet/IP communication modules?
A: Yes. The backplane supports all RX3i-compatible communication modules, including those using PROFINET, EtherNet/IP, Modbus TCP, and serial protocols. No protocol reconfiguration is required when the chassis is replaced.

Q: What are the physical space requirements compared to a 12-slot chassis?
A: The 16-slot chassis is wider than the IC695CHS012. Verify horizontal clearance in your control cabinet before installation. Depth and DIN-rail mounting dimensions remain consistent with standard RX3i chassis specifications.

Q: Can Series 90-30 I/O modules be used in this backplane?
A: Yes, via the IC695LRE001 expansion adapter. This allows phased migration where legacy field I/O is retained while the control platform is upgraded.

Warranty Assurance

Every IC695CHS016CA unit supplied by TOPNLMS is covered by a 12-month warranty from the date of shipment. Prior to dispatch, each unit undergoes functional verification including backplane bus integrity testing, slot connector inspection, and power rail continuity checks. Units that do not meet specification are quarantined and not shipped. In the event of a warranty claim, TOPNLMS provides replacement support with priority processing to minimize your system downtime. Our technical team is available to assist with pre-shipment compatibility verification, installation guidance, and post-installation commissioning questions. All units are shipped with ESD-protective and impact-resistant packaging. Typical lead time from order confirmation to dispatch is 1–3 business days for in-stock units.

For volume procurement, spare parts planning, or urgent replacement requirements, contact our team directly to confirm stock availability and arrange expedited shipping.