Honeywell FC-BKM-0001 V1.0 Retrofit-Ready Battery & Key Module

Honeywell FC-BKM-0001 V1.0 Retrofit-Ready Battery & Key Switch Module for Experion PKS Control Systems

The Honeywell FC-BKM-0001 V1.0 is a retrofit-ready Battery and Key Switch Module engineered for seamless integration into Honeywell Experion PKS distributed control system architectures. As legacy DCS installations age and original spare inventories diminish, the FC-BKM-0001 V1.0 serves as a verified drop-in replacement that preserves existing backplane wiring, controller addressing, and program logic without requiring a full platform migration. Whether you are managing a planned turnaround, responding to an unplanned failure, or executing a phased control system modernization, this module delivers the reliability and compatibility your operation demands.

The FC-BKM-0001 V1.0 is designed to mount directly into the standard Experion PKS chassis and C300 controller rack, sharing the same backplane connector pinout as the original factory-installed unit. Power draw is within the specified budget of the existing power supply modules — typically the Honeywell CC-PWR01 or CC-PWR02 — so no power capacity recalculation is required in most standard retrofit scenarios. Engineers should nonetheless verify total rail loading when the retrofit is performed alongside other module additions such as I/O expansion cards or additional communication modules.

During the replacement process, technicians must confirm the module address assignment within the Experion PKS Control Builder environment. The FC-BKM-0001 V1.0 retains the same module type identifier as the original, which means the existing controller configuration file does not require structural modification. However, a download verification step is recommended after physical installation to confirm that the C300 controller — or the paired C200 controller in older hybrid architectures — correctly recognizes the new module and that the battery status diagnostic clears without fault codes.

Terminal wiring on the associated field termination assembly should be inspected prior to module swap. In systems using the Honeywell CC-TAIX11 or CC-TAOX11 termination panels, the wiring harness connects to the chassis independently of the module itself, which simplifies hot-swap procedures in systems where the control architecture permits it. For installations where the key switch function is actively used for controller mode selection, the key position must be confirmed in the RUN state before the replacement module is seated to avoid inadvertent mode transitions that could interrupt process control.

Communication link integrity should be verified after installation. In Experion PKS networks utilizing the FTE (Fault Tolerant Ethernet) backbone, the C300 controller communicates with the Experion server via redundant Ethernet paths. The FC-BKM-0001 V1.0 does not directly participate in FTE routing, but its battery backup function protects the controller’s volatile memory during power interruptions, which is critical for maintaining the integrity of the control strategy loaded in the C300. Systems that also incorporate the Honeywell CC-SCMB01 Safety Manager Communication Module or interface with a Safety Instrumented System via the SM Integration module should confirm that the SIS communication link remains unaffected during the DCS module replacement.

For facilities executing broader control system upgrades — such as migrating from a TDC 3000 or PlantScape platform to Experion PKS — the FC-BKM-0001 V1.0 is a standard component in the target architecture’s controller assembly. Migration projects of this type typically also involve the replacement or addition of Honeywell CC-PDOB01 digital output modules, CC-PAIX01 analog input modules, and the reconfiguration of the Experion server’s hardware tree to reflect the new physical I/O map. The FC-BKM-0001 V1.0 should be included in the bill of materials for any new C300 controller assembly built during such a migration.

All units supplied by SMARTNEXMSK are subject to pre-shipment functional testing, including battery charge verification, key switch continuity check, and backplane connector inspection. Each module ships with a 12-month warranty covering manufacturing defects and functional failures under normal operating conditions. Inventory is maintained in stock for immediate dispatch, supporting both emergency breakdown scenarios and scheduled maintenance windows.

Upgrade Compatibility Table

Retrofit Planning for Existing Automation Systems

A successful FC-BKM-0001 V1.0 retrofit begins with a thorough audit of the existing controller rack. The C300 controller assembly typically occupies a dedicated slot in the Experion PKS chassis, flanked by the CC-SCMB01 communication module and the associated I/O link interface. Before ordering replacement modules, engineers should document the current slot assignments, firmware revision of the C300 controller, and the revision level of the Experion PKS server software to confirm cross-compatibility.

Power budget verification is a non-negotiable step. The CC-PWR01 power supply module provides a defined wattage budget across the chassis backplane. If the retrofit is being performed in conjunction with the addition of new CC-PDOB01 digital output modules or CC-PAIX01 analog input modules to expand I/O capacity, the cumulative power draw must be recalculated. In high-density I/O configurations, a second CC-PWR02 redundant power supply may be required to maintain the required power margin.

Termination wiring should be inspected and documented before the module is removed. In systems using the Honeywell CC-TAIX11 field termination assembly, the wiring connects to the termination panel rather than directly to the module, which simplifies the physical swap. However, in older installations where direct wiring to the module was used, technicians must photograph and label all terminal connections before disconnection. The Honeywell HC-TDIL31 or equivalent termination documentation should be referenced to confirm correct re-termination after the new module is seated.

HMI screen validation is a frequently overlooked step in DCS module retrofits. After the FC-BKM-0001 V1.0 is installed and the C300 controller has completed its restart sequence, operators should verify that all associated faceplate displays in the Experion PKS HMI station reflect correct module status. Any alarm banners related to battery fault or key switch position should clear automatically once the module is recognized. If the facility uses a third-party SCADA system interfaced via OPC DA or OPC UA to the Experion server, the data point mapping for the controller status tags should also be confirmed to ensure no stale or faulted values are being propagated downstream.

For sites that also operate Honeywell Safety Manager or a third-party SIS on the same control network, the DCS-SIS communication link — typically implemented via the CC-SCMB01 or a dedicated gateway — should be monitored during the retrofit to confirm that the safety system does not interpret the controller restart as a process fault condition. Coordination with the SIS engineer is recommended before any planned controller module replacement in safety-critical applications.

Downtime Control During System Migration

Minimizing unplanned downtime is the primary operational concern when replacing a DCS module in a live production environment. For the FC-BKM-0001 V1.0, the recommended approach is to pre-stage the replacement module at the control room before the maintenance window begins. This includes verifying the module’s physical condition, confirming the battery charge state, and ensuring the key switch operates correctly through all three positions.

Where the Experion PKS architecture supports controller redundancy — with a primary and secondary C300 controller operating in lockstep — the module replacement can be performed on the standby controller first, allowing the primary to maintain process control throughout the procedure. After the standby controller has been verified with the new FC-BKM-0001 V1.0 installed, a controlled switchover can be initiated, and the procedure repeated on the formerly active controller. This approach reduces the effective process interruption to the duration of the switchover event, typically measured in milliseconds for a healthy redundant pair.

In non-redundant controller configurations, the replacement must be performed during a planned shutdown window. The existing control strategy should be exported from Control Builder and saved to a secure backup location before the module is removed. This ensures that if the replacement module requires a full download rather than a partial configuration update, the program logic can be restored without relying on the controller’s internal memory — which may be compromised if the original battery had failed prior to the replacement.

Field communication continuity should be maintained wherever possible. In systems where the C300 controller manages HART-enabled field devices via the CC-PAIX01 analog input modules, the HART communication link will be interrupted during a controller restart. Technicians should notify the instrument maintenance team so that any HART device configuration changes are not attempted during the restart window. Similarly, Modbus RTU or Profibus DP links managed through a dedicated communication module should be monitored to confirm automatic reconnection after the controller returns to service.

Post-installation, a structured commissioning checklist should be completed before the process is returned to automatic control. This includes confirming all I/O points are reading correctly, verifying that the battery status diagnostic is clear, confirming the key switch is in the RUN position, and performing a loop check on any critical control loops managed by the C300. The entire procedure, from module removal to return-to-service, can typically be completed within a two-hour maintenance window for an experienced DCS technician.

Retrofit Support FAQ

Q: Is the FC-BKM-0001 V1.0 a direct replacement for earlier FC-BKM-0001 revisions?
A: Yes. The V1.0 hardware revision is backward compatible with all prior revisions of the FC-BKM-0001. The backplane connector, module address scheme, and key switch function are identical across revisions. No configuration changes are required in Control Builder when replacing an earlier revision with the V1.0 unit.

Q: What pre-shipment testing is performed on each unit?
A: Every FC-BKM-0001 V1.0 supplied by SMARTNEXMSK undergoes battery charge verification, key switch continuity testing across all three positions, and backplane connector pin inspection before dispatch. A functional test report is available upon request. All units are covered by a 12-month warranty from the date of shipment.

Q: Can this module be installed without taking the C300 controller offline?
A: In redundant controller configurations, the module can be replaced on the standby controller without interrupting process control. In non-redundant configurations, a planned shutdown is required. Always consult your site safety procedure and the Honeywell Experion PKS hardware installation guide before performing any module replacement in a live control system.

Q: What should I verify regarding wiring and termination before installation?
A: Confirm that the field termination assembly (e.g., CC-TAIX11) is correctly wired and that all terminal screws are torqued to specification. If the existing installation uses direct wiring to the module rather than a termination panel, photograph and label all connections before removal. After installing the FC-BKM-0001 V1.0, verify that all terminal connections are secure and that no wiring has been disturbed during the module swap.

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