HONEYWELL CC-TAON01 Analog Output IOTA 51306519-175

HONEYWELL CC-TAON01 Analog Output IOTA PWA 51306519-175 – NEW

The Honeywell CC-TAON01 (Manufacturer Part Number: 51306519-175) is an industrial-grade, non-redundant Analog Output Input/Output Termination Assembly (IOTA) designed for the Honeywell Experion® Process Knowledge System (PKS) Series C architecture.

The 51306519-175 is strictly a non-HART analog output terminal assembly designed to provide localized short-circuit protection and surge mitigation. If a field wire shorts, this IOTA ensures the rest of your control system remains completely isolated and operational, preventing cascading system failures.

As a marine engineer, I search for parts that make it easier to undertake dry-dock refits and fix things in an emergency. This printed wiring assembly (PWA) is the base for Experion® PKS analog output modules. It safely sends current to analog-driven equipment while protecting the main control rack from electrical problems on the field side.

Technical Specifications

Key Features

1. High-Density 16-Channel Architecture: Consolidates 16 precision 4–20 mA current loop circuits within a compact 6-inch footprint, minimizing cabinet space requirements.
2. Robust Galvanic & Surge Protection: High dielectric isolation protects sensitive C300 controller logic from field-induced ground loops, back-EMF, and lightning transients.
3. Direct IOM Mechanical Mating: Plug-in interface connects directly with Honeywell Series C Analog Output Modules without intermediate interconnect cables.
4. Conformal Coating (ISA-S71.04 Class G3): Factory-applied protective barrier shields internal copper traces and solder joints against H₂S, salt mist, sulfur dioxide, and airborne humidity.
5. Integrated Over-Current Soft-Protection: Onboard circuit paths support active current limiting, preventing module destruction during accidental field wire short-circuits.

Industrial & Marine Applications

• Marine Engine Automation & Propulsion: Pitch control valves, fuel rack position actuators, governor control loops, and main cooling water bypass valves.
• Offshore Oil & Gas (FPSO & Platforms): Wellhead hydraulic control systems, ESD valve throttling, gas turbine fuel metering, and separator level control.
• Power Generation & Boiler Control: Feedwater regulating valves, steam turbine governor interfaces, and secondary air damper modulating actuators.
• Chemical & Refining Plants: Severe-service control valves, variable frequency drive (VFD) 4–20 mA speed reference inputs, and metering pump pacing.

Frequently Asked Questions

What is the primary difference between the CC-TAON01 and CC-TAOX01 IOTA models?

The CC-TAON01 is a single (non-redundant) 16-channel Analog Output termination assembly, whereas the CC-TAOX01 / CC-TAOX11 is a redundant termination assembly that accommodates two CC-PAOH01 modules side-by-side for active/standby failover configurations.

Can I use the CC-TAON01 with HART field devices?

Yes. When paired with a Honeywell CC-PAOH01 HART Analog Output Module, the CC-TAON01 transparently passes high-frequency FSK HART communication signals (Bell 202 standard) between field valve positioners and the Experion PKS asset management system without signal attenuation.

What causes an over-current soft failure on the CC-TAON01 channels?

An over-current failure occurs if field wiring is shorted or the load resistance drops below operational minimums, causing the active module to push current beyond the 22 mA upper threshold. The module shuts down output drive on that specific channel to protect the IOTA circuitry.

Is the CC-TAON01 compatible with third-party I/O modules?

No. The CC-TAON01 is built specifically for Honeywell Series C control hardware and connects with Honeywell CC-PAOH01 and CC-PAON01 modules mounted on proprietary Series C carriers.