ABB CI857K01 3BSE018144R1 Migration-Ready Ethernet Interface for Legacy INSUM

Overview

ABB CI857K01 3BSE018144R1 Migration-Ready Ethernet Interface for Legacy INSUM Control Systems

The ABB CI857K01 (Part No. 3BSE018144R1) is a high-performance Ethernet communication interface module designed for the ABB INSUM intelligent motor control system. As legacy INSUM installations approach end-of-life and original ABB communication modules become increasingly difficult to source, the CI857K01 serves as the definitive migration-ready replacement — enabling plant engineers to restore network connectivity, extend system lifespan, and defer full panel replacement without rewriting control logic or rewiring field devices.

This module supports standard industrial Ethernet protocols and integrates directly into existing INSUM backplane slots, making it the preferred choice for facilities managing aging motor control centers (MCCs), switchgear automation panels, and distributed motor protection systems. Whether you are replacing a failed communication card, upgrading from an older CI856 or CI858 interface, or migrating your INSUM network from a legacy fieldbus to Ethernet-based supervision, the CI857K01 provides a validated, field-proven upgrade path.

Migration Compatibility Table

Retrofit Planning for Existing Automation Systems

Successful integration of the CI857K01 into a legacy INSUM installation requires a structured retrofit assessment before any hardware is removed from service. The first step is to audit the existing INSUM rack configuration — identifying the current communication module slot, verifying that the backplane revision supports the CI857K01 pinout, and confirming that the rack power supply unit (PSU) has sufficient headroom to support the replacement module’s current draw. In many aging MCCs, the original ABB INSUM PSU may already be operating near capacity, particularly where additional I/O expansion modules or motor protection relays such as the ABB M102-M or M101-M motor protection units have been added over time.

Terminal and wiring adaptation is typically minimal for a direct CI857K01 swap, since the module draws power and signal from the backplane rather than field terminals. However, if the existing installation used a separate ABB CI856 fieldbus interface with external Profibus DP cabling, the migration to Ethernet will require a structured cabling change at the panel level — replacing the Profibus trunk with a shielded Cat5e or Cat6 Ethernet run to the nearest managed switch or DCS Ethernet node. Engineers should document the existing Profibus node addresses and replicate the logical device mapping in the new Ethernet configuration to avoid disrupting upstream SCADA or DCS polling cycles.

For sites running ABB System 800xA or a third-party SCADA platform, the CI857K01’s Modbus TCP interface allows direct integration without additional protocol converters in most cases. Where the supervisory system communicates via OPC-DA or OPC-UA, confirm that the existing OPC server supports Modbus TCP device drivers before finalizing the migration plan. In mixed-protocol environments — for example, where some panels retain legacy ABB CI858 Profibus modules alongside the new CI857K01 Ethernet interface — a protocol gateway or dual-port managed switch may be required to bridge the two network segments without introducing latency into motor protection response times.

I/O expansion considerations are equally important. If the INSUM system manages a large number of motor feeders and the existing rack is already populated with ABB INSUM I/O modules for digital status and analog feedback signals, verify that adding or replacing the communication module does not alter the rack’s slot addressing scheme. Some INSUM firmware versions auto-assign module addresses based on physical slot position; a slot change during the retrofit can shift addresses and cause the supervisory system to lose visibility of downstream motor protection data until the address map is updated in the SCADA configuration.

Finally, if the retrofit involves an HMI panel running ABB’s legacy INSUM configuration software, confirm that the HMI project file references the correct communication driver for Ethernet rather than Profibus. Updating the HMI communication settings before the physical swap — and testing in simulation mode where possible — significantly reduces the risk of extended downtime during the cutover window.

Downtime Control During System Migration

Minimizing production interruption is the primary concern for any live INSUM retrofit. The CI857K01 is designed as a direct backplane replacement, which means the physical swap can typically be completed within a planned maintenance window of two to four hours — provided all pre-commissioning steps have been completed in advance.

Before the cutover, export and archive the full INSUM configuration from the existing system, including motor protection settings, communication parameters, and any custom logic blocks stored in the rack controller. This backup serves as the recovery baseline if the new module requires a configuration reload. Where the plant operates continuous processes, coordinate the cutover with the operations team to identify the lowest-risk window — typically a scheduled maintenance shutdown or a low-production shift — and prepare a rollback procedure that allows the original module to be reinstalled within 30 minutes if commissioning issues arise.

During the swap, label all Ethernet cables and document port assignments before disconnecting any network hardware. After installing the CI857K01, power up the rack and verify that the module’s status LEDs indicate normal operation before reconnecting the Ethernet link to the plant network. Perform a point-by-point communication check against the SCADA or DCS tag list to confirm that all motor status, fault, and control signals are being received correctly. Where the system includes ABB M102-M motor protection relays reporting through the INSUM network, verify that each relay’s data is visible in the supervisory system before releasing the panel back to operations.

Each CI857K01 unit supplied by KNMKS undergoes a pre-shipment functional test to verify communication port integrity, backplane connector condition, and firmware version. A test report is available on request, reducing the risk of receiving a non-functional module and eliminating one potential source of unplanned downtime during the retrofit.

Retrofit Support FAQ

Q1: Is the CI857K01 a direct drop-in replacement for the CI856 or CI858 in an existing INSUM rack?
The CI857K01 occupies the same backplane slot as earlier INSUM communication modules and uses the same edge connector interface, making it a direct physical replacement in most INSUM rack configurations. However, the communication protocol changes from Profibus (CI856/CI858) to Ethernet, so the upstream network infrastructure and SCADA driver configuration must be updated to match. Confirm your rack’s firmware version supports the CI857K01 before ordering.

Q2: What commissioning steps are required after installing the CI857K01?
After physical installation, assign the module’s IP address and Modbus TCP node parameters using the INSUM configuration tool or the module’s onboard DIP switches (depending on firmware version). Update the SCADA or DCS communication driver to point to the new IP address, then perform a full tag scan to verify that all motor protection and status data is being received correctly. Check firmware version compatibility and apply any recommended updates before final handover.

Q3: Can the CI857K01 operate in a mixed Profibus/Ethernet INSUM installation?
Yes, in multi-rack INSUM installations it is possible to run CI857K01 Ethernet modules in some racks while retaining CI856 or CI858 Profibus modules in others. A protocol gateway or dual-network managed switch is required to bridge the two segments at the supervisory level. This approach is commonly used in phased migration projects where full panel replacement is not feasible in a single outage window.

Q4: What support terms and supply assurance does KNMKS provide for the CI857K01?
All CI857K01 units supplied by KNMKS carry a support terms confirmed by quotation covering functional defects under normal operating conditions. Each unit is pre-tested prior to shipment, and a functional test report is available on request. KNMKS maintains in-stock inventory of the CI857K01 and related INSUM components to support urgent retrofit and breakdown replacement requirements. Contact [email protected] or +86 18359268345 for availability and lead time confirmation.

© 2026 KNMKS. All rights reserved.
Original Source: https://knmks.com
Contact: [email protected] | +86 18359268345

Product Identification

Brand / Ecosystem

ABB
ABB

Model / Series

CI857K01 3BSE018144R1
AC800M Series

Product Family

PLCs & Controllers

Availability Status

Available on request after model and quantity confirmation

Inquiry Type

B2B RFQ, replacement inquiry and project spare-part request

Pre-Quote Check

Exact SKU, brand, series, quantity, nameplate photos and destination country are checked before quotation

Specification & Inquiry Focus

Control platform

PLC, PAC and modular controllers

Common needs

CPU, rack, power and I/O expansion

Project support

Replacement, cabinet build and maintenance

Inquiry Support

• Model cross-checking before quotation
• CPU, power, rack and expansion module matching
• Support for replacement and project inquiry

What to Send Us

• Brand and exact model number: ABB CI857K01 3BSE018144R1
• Quantity and required delivery time
• Application, replacement requirement or nameplate photo
• Destination country and shipping preference