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Product Overview
The TC-OAV081 (Part Number: TC-OAV081) is a high-performance analog output module in the Honeywell Experion PKS Series C I/O family. It provides eight independent channels capable of both voltage and current output, enabling precise control of field devices such as variable speed drives, control valves, and actuators.

Designed for high-speed, deterministic process control, the TC-OAV081 features an ultra-fast 25 ms update rate for all channels and advanced protection circuitry, including electronic current limiting and overvoltage protection, ensuring safe operation even in fault conditions.


Technical Specifications

Feature Specification
Primary Identifier TC-OAV081
Channel Density 8 Output Channels
Voltage Signal Range ±10.4 VDC
Current Signal Range 0–21 mA
Signal Resolution (Voltage) 320 µV per count
Signal Resolution (Current) 0.650 µA per count
Calibration Accuracy (25°C) Better than 0.05% of range
Response Speed 25 ms update rate (all channels)
Output Settling Time <2 ms (to 95% with resistive load)
Load Impedance (Voltage) >2000 Ω
Load Impedance (Current) 0–750 Ω
Fault Protection 24 VAC/VDC overvoltage; electronic current limiting at 21 mA
System Isolation 2550 VDC for 1 second (User-to-System)
Total Power Dissipation 6.9 W maximum
Termination Interface TC-TBNH 20-position terminal block

Application Scenarios

  • Modulating control valve positions in chemical refineries

  • Speed reference signaling for Variable Frequency Drives (VFDs)

  • Interfacing with analog chart recorders or secondary displays

  • Providing setpoint signals to third-party standalone controllers


Frequently Asked Questions (FAQ)

Q: Can the TC-OAV081 output both voltage and current on different channels simultaneously?
A: Yes. Each channel can be individually configured for ±10.4 V voltage or 0–21 mA current, depending on the connected field device requirements.

Q: What happens if a field wire is short-circuited?
A: The module includes built-in short circuit protection, electronically limiting output current to 21 mA or less, preventing internal damage.

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