Honeywell CC-TAOX01 51308351-175 Migration-Ready Analog Output Module

Overview

Honeywell CC-TAOX01 51308351-175 Migration-Ready Analog Output Module for Legacy Control Systems

The Honeywell CC-TAOX01 (part number 51308351-175) is an 8-channel analog output module designed for the Experion PKS C300 Distributed Control System platform. As process plants face increasing pressure to maintain aging DCS infrastructure, this module serves as a direct, migration-ready replacement for end-of-life analog output assemblies within the C300 controller chassis. Whether you are executing a phased retrofit of an existing Honeywell TDC 3000 or PlantScape system, or consolidating I/O racks in a brownfield facility, the CC-TAOX01 provides a verified drop-in solution that preserves existing field wiring, terminal block layouts, and control logic without requiring a full platform migration.

Each unit is pre-shipment tested against Honeywell factory specifications, covering channel-to-channel isolation, 4–20 mA output accuracy, loop power integrity, and backplane communication handshake with the C300 controller. Inventory is maintained availability confirmed by RFQ for immediate dispatch, supporting emergency spare part requirements and planned maintenance windows alike. All units are covered by a support terms confirmed by quotation from the date of shipment.

Migration Compatibility Table

Retrofit Planning for Existing Automation Systems

Successful integration of the CC-TAOX01 into an existing C300 DCS environment requires a structured pre-installation review. Begin by auditing the C300 chassis power supply — the CC-PA0001 or CC-PA0002 power supply modules must have sufficient headroom to support the additional analog output load. If the chassis is already near capacity, a supplemental power supply or chassis expansion may be necessary before the module swap proceeds.

Terminal block compatibility is the next critical checkpoint. The CC-TAOX01 mates with the corresponding CC-TAOX01 terminal assembly; if the existing terminal block has been damaged or replaced with a non-standard assembly, a new terminal block must be sourced and wired before the module is seated. Field wiring — typically 4–20 mA loops connected to control valves, variable frequency drives, or positioners — should be verified for loop resistance and continuity prior to energizing the new module.

Within Honeywell Control Builder, the module’s I/O channel assignments and tag database entries must be confirmed. If the replacement module is installed in the same physical slot, the existing configuration typically transfers without modification. However, if the slot address has changed — for example, due to chassis reconfiguration or rack consolidation — each analog output channel tag must be remapped and the associated control strategy downloaded to the C300 controller. This step is also the appropriate time to verify that the Experion PKS server’s FTE network configuration correctly identifies the replacement module.

For sites migrating from older Honeywell platforms such as the PM I/O or HLAI assemblies used in TDC 3000 or FSC systems, the CC-TAOX01 is part of a broader migration path that may also involve the CC-TCNT01 communication interface module, the CC-IP0101 FTE switch, and updated HMI display templates in Experion Station. Signal isolators may be required at the field junction box if legacy intrinsic safety barriers are incompatible with the new module’s output drive capability. Programming cable access via the C300 engineering port should be confirmed before the maintenance window begins to avoid delays during commissioning.

Downtime Control During System Migration

Minimizing process downtime during a CC-TAOX01 replacement requires advance preparation of the replacement unit, pre-staging of tools and documentation, and a clearly defined rollback procedure. Before the maintenance window opens, the replacement module should be bench-tested using a portable loop calibrator to confirm all 8 output channels are functioning within specification. The existing module’s configuration export from Control Builder should be saved and archived as a recovery baseline.

During the swap, the C300 controller can often remain in its current operating state if the chassis supports hot-swap I/O — verify this capability against the installed firmware version and chassis type before proceeding. If a cold swap is required, coordinate with the process control team to place affected control loops in manual mode at the DCS operator station, ensuring field devices such as control valves remain in a safe, last-known-good position during the module exchange. After the new CC-TAOX01 is seated and the terminal block is reconnected, perform a channel-by-channel output verification using the Experion PKS diagnostic tools before returning loops to automatic control. Document the as-found and as-left conditions for each channel to support future maintenance records and support requests.

Retrofit Support FAQ

Q: Is the CC-TAOX01 51308351-175 a direct replacement for all CC-TAOX01 variants?
A: The 51308351-175 is the standard production revision of the CC-TAOX01. It is compatible with all C300 chassis slots that previously housed a CC-TAOX01 module. If your existing unit carries a different dash number, contact our technical team to confirm cross-compatibility before ordering.

Q: What pre-shipment testing is performed on each unit?
A: Every CC-TAOX01 51308351-175 is tested for channel output accuracy across the full 4–20 mA range, backplane communication integrity, channel isolation, and power rail stability. A test record is available upon request.

Q: Can this module be installed without modifying the existing field wiring?
A: In most cases, yes. The CC-TAOX01 uses the same terminal block interface as the original module. Provided the terminal assembly is undamaged and wiring is intact, no field rewiring is required. Always verify terminal block part numbers and wiring diagrams against the as-built documentation for your specific installation.

Q: What is the support terms coverage and lead time?
A: All units carry a support terms confirmed by quotation from the date of shipment, covering manufacturing defects and hardware failures under normal operating conditions. Stock units are available for immediate dispatch; lead time for non-stock configurations is confirmed at the time of order.

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Product Identification

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Honeywell
Honeywell

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CC-TAOX01 51308351-175
Experion PKS Series

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PLCs & Controllers

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Available on request after model and quantity confirmation

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B2B RFQ, replacement inquiry and project spare-part request

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PLC, PAC and modular controllers

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CPU, rack, power and I/O expansion

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Replacement, cabinet build and maintenance

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

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