Description
Introduction and Engineering Value
In a control system, an analog output terminal assembly is part of the physical interface between the control hardware and the equipment receiving its commands. The Honeywell CC-TAOX01 supports Series C analog output installations where correct terminal compatibility and reliable field wiring are essential to maintaining control-loop operation.
For maintenance teams, the most important distinction is its nonredundant configuration. If the existing installation uses a redundant terminal assembly, verify the installed part number and rack design rather than assuming the CC-TAOX01 is an equivalent replacement.
Technical Specifications
The following table separates the terminal assembly’s identifying details from the electrical specifications documented for the associated CC-PAOX01 output module.
| Specification | Details |
|---|---|
| Terminal assembly model | CC-TAOX01 |
| I/O platform | Honeywell Experion Series C |
| Assembly configuration | Nonredundant |
| Assembly size | 6 inches |
| Associated output module | CC-PAOX01 |
| Output signal | 4–20 mA |
| Output channels | 16 |
| Maximum resistive load | 800 Ω at a 22–28 VDC supply |
| Maximum output compliance voltage | 16 V under the documented supply conditions |
| Maximum open-circuit voltage | 22 V |
| Calibrated output accuracy | ±0.35% of full scale at 25°C, including linearity |
| Output response | Settles within 1% of final value in 80 ms |
| Output temperature drift | 0.005% of full scale per °C |
The electrical values above are specifications for the CC-PAOX01 analog output function, not standalone performance ratings for the CC-TAOX01 terminal assembly. Confirm the relevant module manual and system revision before applying them to an installed configuration.
CC-TAOX01
CC-TAOX01
Field Applications
The CC-TAOX01 is relevant to process-control installations that use compatible Series C analog output modules to command field equipment.
- Control valve positioning: Carries output-loop connections for compatible valve positioners in flow, pressure, or temperature control loops.
- Variable-speed equipment: Supports analog command wiring for compatible drives or other equipment accepting a current-reference signal.
- Process setpoint actuation: Forms part of the output path for equipment that adjusts a process variable in response to a controller’s command.
- Maintenance and outage support: Provides a model-specific replacement option when the installed terminal assembly has been identified and compatibility verified.
Illustrative maintenance scenario
A plant experiences an output-loop fault during a scheduled shutdown. The maintenance team identifies the affected channel and checks the I/O module, terminal assembly, field wiring, and receiving actuator. The team confirms that the installed assembly is a CC-TAOX01 and that the replacement matches the existing nonredundant configuration.
After replacement, the team verifies terminal assignments, checks loop current with suitable test equipment, and confirms the commanded response at the field device. This is an illustrative workflow, not a report of an actual CC-TAOX01 field test.
QA and Testing SOP
Before purchasing or installing a CC-TAOX01, use a documented verification process.
- Model verification: Check the full model number and product label against the required bill of materials.
- Visual inspection: Examine the housing, terminal points, connectors, labels, and circuit areas for damage, corrosion, contamination, or unauthorized modification.
- Configuration check: Verify compatibility with the installed I/O module and determine whether the application requires nonredundant or redundant hardware.
- Electrical inspection: With the equipment safely isolated as required, inspect wiring and verify that field-loop conditions meet the applicable module documentation.
- Functional testing: Where appropriate, perform controlled continuity or loop checks and verify output behavior using an approved test procedure.
- Documentation: Record the part number, condition, test scope, test results, and any exceptions.
Purchasing note: New surplus, refurbished, and used units are different condition categories. Request the seller’s condition declaration and test report. Do not treat a supplier’s listing or a product photograph as proof that a specific unit has passed functional testing.
Veteran’s Tech Trap Guide
Trap 1: Confusing nonredundant and redundant assemblies
The CC-TAOX01 is documented as nonredundant and 6 inches long. The CC-TAOX11 is the redundant, 12-inch variant in the Series C specification. Check the cabinet layout and installed configuration before ordering.
Trap 2: Assuming similar model numbers mean identical functions
The CC-TAOX01 is associated with both the non-HART CC-PAOX01 and the HART-capable CC-PAOH01 in Honeywell’s compatibility documentation. Compatibility depends on the intended system architecture and field-interface requirements, not just the terminal assembly name.
Trap 3: Replacing the assembly without checking the output loop
Confirm terminal assignments, field-device requirements, load resistance, and the applicable I/O module documentation. A mechanically compatible part does not, by itself, establish that the complete loop is configured correctly.
Frequently Asked Questions
What is the Honeywell CC-TAOX01 used for?
It is a Series C analog output terminal assembly used with compatible Honeywell I/O hardware to interface analog output channels with field wiring.
Is the CC-TAOX01 compatible with the CC-PAOX01?
Yes. Honeywell’s Series C documentation lists the CC-TAOX01 as a supported nonredundant terminal assembly for the CC-PAOX01 analog output module.
Can the CC-TAOX01 be used with a HART output module?
Honeywell’s compatibility documentation also lists the CC-TAOX01 with the CC-PAOH01 HART-capable analog output module. Verify the specific module revision, configuration, and required field functionality before installation.
What is the difference between CC-TAOX01 and CC-TAOX11?
The CC-TAOX01 is the 6-inch nonredundant version; the CC-TAOX11 is the 12-inch redundant version. They should not be treated as interchangeable without checking the cabinet design and system requirements.
How can I verify that a replacement is genuine?
Request clear label photographs, traceable sourcing information where available, and a written condition statement. For refurbished or used units, ask for test records covering the checks actually performed. A seller’s description alone does not independently verify authenticity.
Does a replacement come with a warranty?
Warranty terms depend on the supplier and the unit’s condition. Confirm the warranty period, return window, coverage exclusions, and whether the warranty applies to functional failure after installation before placing the order.
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