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Product Overview

The Honeywell CC-TAOX51 (associated with PWB 51307078-100 and module CC-PAOH51) functions as a high-precision 8-channel Analog Output (AO) module with integrated HART communication capabilities. This 100% brand-new, original unit converts digital control commands from the Experion PKS C300 controller into stable analog signals to drive critical field equipment. By supporting the HART protocol, the CC-TAOX51 allows the DCS to transmit primary variables while simultaneously managing intelligent device configurations and diagnostic data for final control elements like control valves and variable speed drives.

Technical Specifications

The CC-TAOX51 utilizes a compact, vertically oriented Series C form factor to maximize cabinet efficiency and thermal performance.

Attribute Technical Detail
Model Number CC-TAOX51
PWB Part Number 51307078-100
Revision Rev A
Number of Channels 8 Analog Output Channels
Signal Types 4–20 mA Current, 1–5 V Voltage
Resolution 12 to 16-bit D/A Conversion
Communication Protocol Integrated HART Digital Passthrough
Isolation Channel-to-channel and channel-to-system
Dimensions 2.2 cm x 12.4 cm x 12.6 cm
Weight 0.1 kg (Module only)
Operating Temperature 0 °C to +55 °C

Engineering Advantages

The Honeywell CC-TAOX51 facilitates advanced field device management and stabilizes complex process loops through several engineering innovations:

  • Bidirectional HART Integration: The module overlays digital communication onto the 4-20 mA analog signal. Consequently, engineers can calibrate smart positioners, perform partial stroke tests (PST) on safety valves, and monitor device internal temperatures directly from the control room.

  • Superior Signal Stability: High-resolution digital-to-analog conversion ensures that field actuators receive smooth, jitter-free signals. This precision prevents hunting in sensitive control valves, extending the mechanical life of valve packing and actuators.

  • Comprehensive Fault Diagnostics: The CC-TAOX51 actively monitors the integrity of the output loop. It detects open-circuit conditions (wire breaks) and short-circuits instantly, providing immediate feedback to the operator and preventing "blind" control attempts during field wiring failures.

  • Optimized Thermal Footprint: The Series C architecture promotes vertical airflow across the 51307078-100 PWB. This design keeps internal components within optimal temperature ranges even in high-density I/O cabinets, significantly increasing the Mean Time Between Failures (MTBF) in 24/7 continuous operations.

FAQs

  • Does the CC-TAOX51 support redundant configurations?

    Yes. When you pair two CC-TAOX51 modules on a redundant I/O Termination Assembly (IOTA), the system supports bumpless switchover. This ensures that a single module failure does not disrupt the output signal to critical field devices.

  • Is this module compatible with both Experion PKS and older TDC 3000 systems?

    The CC-TAOX51 is specifically a Series C module designed for the Experion PKS platform. While it performs functions similar to legacy TDC 3000 AO modules, it requires a Series C IOTA and a C300 or similar controller.

  • What specific field devices can this module control?

    The CC-TAOX51 drives any standard 4-20 mA or 1-5 V device, including I/P transducers, control valve positioners, variable frequency drive (VFD) speed references, and analog indicators.

  • What is the significance of the Revision A and PWB 51307078-100 markings?

    These identifiers confirm the hardware build and board version. Rev A indicates the initial high-performance design, while the PWB number ensures you are receiving the correct internal circuitry for the CC-TAOX51 8-channel HART AO specification.

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