Honeywell 8C-TAOX51 51306983-175
Honeywell 8C-TAOX51 51306983-175
Honeywell 8C-TAOX51 51306983-175
Honeywell 8C-TAOX51 51306983-175
Honeywell 8C-TAOX51 51306983-175
Honeywell 8C-TAOX51 51306983-175
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8C-TAOX51 51306983-175

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Honeywell 8C-TAOX51 51306983-175 is a coated, non-redundant Series C analog output IOTA with sixteen HART-capable channels. It connects control outputs to field actuators.
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Technical specifications for 8C-TAOX51 51306983-175

  • Manufacturer:
    Honeywell
  • Part Number:
    8C-TAOX51 51306983-175
  • Product Family:
    Honeywell Experion PKS ( C200, C300 )
  • Product Type:
    Analog Output IOTA module
  • Stock:
    1
  • Output Type:
    4-20 mA
  • Output Channels:
    16
  • Output Ripple:
    100 mV peak-to-peak at power line frequency, across 250 Ω load
  • Resolution:
    ± 0.05% of Full Scale
  • Calibrated Accuracy:
    ± 0.35% of Full Scale (25oC) including linearity
  • Directly Settable Output Current Range:
    0 mA, 2.9 mA to 21.1 mA
  • Weight:
    0.5291 lbs (0.24 kg)
  • Estimated shipping dimensions:
    14.5x12x6.5cm
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Applications Performance & Efficiency Protection

Features:

  • Bridge Between the Control System Backplane and Field Analog Output Devices
  • Integrates 16-Channel AO Signal Distribution with Protective Circuit Coating Technology
  • Functions Cooperatively with Honeywell C300 and Experion PKS Control Environments
The Honeywell 8C-TAOX51 Analog Output IOTA module operates as the coated termination assembly in a Series 8 I/O rack, providing reliable analog output signal routing to all field devices within the control loop. It continuously transmits 4-20 mA or other standard analog signals from the controller through the backplane to 16 individual field terminations, ensuring precise control of final control elements such as control valves, variable frequency drives, and actuator positioning systems. Enhanced environmental protection is standard with the 8C-TAOX51, as its coated circuit design resists moisture ingress and corrosive contamination that would otherwise degrade unprotected termination assemblies in harsh process environments. The 8C-TAOX51 has incorporated significant improvements in signal integrity and durability over previous IOTA designs in addition to providing robust 16-channel analog output capability within the Honeywell control architecture.

The 8C-TAOX51 provides essential signal interface functions common to the entire analog output path, and is a critical component of the control loop, directly affecting the proper, accurate operation of the overall process control system. One 8C-TAOX51 module is required per 16-channel analog output segment, with multiple units deployable depending on the required I/O density. The 8C-TAOX51 occupies a standard slot position in the IOTA rack and interfaces directly with the associated Series 8 analog output module.

For expanded analog output applications, the Honeywell system supports multiple 8C-TAOX51 modules installed across available slots. In addition to standard single-module operation, the modular configuration also enables scalable channel expansion. The 8C-TAOX51 channel architecture executes signal distribution using the internal circuitry specified in the IOTA design specifications. Using this method, the analog output system continually maintains signal fidelity across all 16 channels. If the system detects that a particular channel requires recalibration or the module identifies a signal drift condition, operators can address individual channels while the remaining 15 outputs on the 8C-TAOX51 continue normal operation, with status events logged in the System Event List.

The 8C-TAOX51 Honeywell Analog Output IOTA module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Verified resources for Honeywell 8C-TAOX51 51306983-175:Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Honeywell 8C-TAOX51 Analog Output IOTA module Specs

General

  • Manufacturer Honeywell
  • Model 8C-TAOX51
  • Condition New Original ready stock
  • Product Family 8U-TAOX51,8U-TAOX61,8C-TAOX61
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Drives non-redundant analog command loops for compatible valves, positioners, and actuators.
  • Supports HART-capable Series C output electronics where the approved IOTA is specified.
  • Provides field termination for continuous process-control signals in Experion cabinets.
  • The documented output behavior includes 0 mA and a normal 2.9 to 21.1 mA operating span.
  • A maximum output of 22.5 mA defines the published upper circuit boundary.
  • Correct loop load and wiring preserve stable command delivery to the final control element.
  • Channels include short-circuit protection for common field faults.
  • The design also protects against an external positive 30 VDC connection.
  • External loop energy must still be isolated before terminals or output electronics are serviced.
Description
The Honeywell 8C-TAOX51 is a  Analog Output Input/Output Termination Assembly (IOTA) module designed specifically for the Experion Series 8 control system. This 8C-TAOX51 model features 16 individual output channels, providing robust connectivity for field devices within a compact 6-inch (Size 6) form factor. To ensure long-term reliability in demanding environments, the 8C-TAOX51 is equipped with a professional conformal coating, meeting G3 harsh environment specifications to protect the internal circuits from moisture, dust, and corrosive gases.

This 8C-TAOX51 IOTA is purpose-built for precision control in critical industrial sectors such as oil and gas, chemical processing, and power generation. The 8C-TAOX51 is specifically designed to handle the challenges of signal interference and environmental degradation in non-redundant configurations. By integrating HART communication capabilities directly into the module, the 8C-TAOX51 solves the problem of complex field device management, allowing operators to perform remote diagnostics and configuration of smart valves or actuators without requiring additional hardware or manual field testing.

In practical application, the 8C-TAOX51 is often deployed in scenarios involving the precise positioning of control valves or the regulation of variable speed drives in refinery units. The 8C-TAOX51 addresses the need for high-density, reliable output signals in space-constrained cabinets, ensuring that 4–20 mA control loops remain stable even in high-temperature or chemically aggressive atmospheres. By utilizing the 8C-TAOX51, facilities can effectively solve the issue of premature hardware failure due to corrosion.
Alternative Names
8U-TAOX51 8C-TAOX61 8U-TAOX61 8C-PAOH51
Technical notes
Confirm the non-redundant output topology and remove external loop energy before changing 8C-TAOX51 51306983-175, because the channels include defined short-circuit and overvoltage protection boundaries.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What output architecture uses Honeywell 8C-TAOX51 51306983-175?
It is the non-redundant Series C analog-output IOTA for approved HART-capable output electronics.
Which operating span is documented for Honeywell 8C-TAOX51 51306983-175?
The Series C output specification covers 0 mA and 2.9 to 21.1 mA operation, with 22.5 mA as the documented maximum.
What final control elements can Honeywell 8C-TAOX51 51306983-175 serve?
It supports analog command loops for compatible positioners, I/P converters, actuators, and other current-driven devices.
How are Honeywell 8C-TAOX51 51306983-175 channels protected?
The documented design includes short-circuit protection and protection against an external positive 30 VDC connection.
Why is Honeywell 8C-TAOX51 51306983-175 not interchangeable with TAOX61?
TAOX51 is non-redundant while TAOX61 is redundant, so the IOM arrangement, connector topology, keying, and wiring differ.
What should be supplied for a Honeywell 8C-TAOX51 51306983-175 review?
Send the full code, paired output module, loop load details, cabinet photographs, quantity, destination, and schedule.

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