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The 8C-TAOXB1 (Part Number 51307137-175) is a high-precision Analog Output (AO) module engineered for the Honeywell Experion PKS Series 8 I/O family. It is designed to regulate continuous process variables by delivering isolated 4–20 mA current signals to field actuators such as control valves, dampers, and motor speed controllers.
Featuring advanced 16-bit digital-to-analog conversion, the 8C-TAOXB1 ensures high-fidelity signal output with minimal thermal drift. Its Series 8 vertical architecture optimizes cabinet airflow and simplifies maintenance access. The module also includes onboard diagnostics, such as open-loop detection and output read-back verification, ensuring that commanded signals match actual field outputs—critical for high-integrity control applications in demanding industries.
| Parameter | Specification |
|---|---|
| Model Identification | 8C-TAOXB1 |
| Ordering Number | 51307137-175 |
| Module Type | Analog Output (AO) |
| System Series | Series 8 |
| Output Signal | 4–20 mA Current Loop |
| Channel Configuration | 16 Channels |
| Resolution | 16-bit (High Precision) |
| Loop Voltage | 24V DC (Nominal) |
| Module Width | 5.1 cm |
| Module Height | 26.7 cm |
| Module Depth | 17.8 cm |
| Unit Weight | 0.5 kg |
The 8C-TAOXB1 module is widely deployed in Distributed Control Systems (DCS) across industries such as:
Oil & gas refineries
Pulp and paper mills
Power generation plants
Typical applications include:
Proportional control of modulating valves
Providing setpoint signals to local controllers and drives
Precision control of process variables in continuous operations
Its high reliability and diagnostic capabilities make it suitable for critical automation loops where consistent and accurate analog output is required.
Q: What is the primary difference between the 8C-TAOXB1 and the earlier 8C-TAOXA1 model?
A: The 8C-TAOXB1 (51307137-175) typically incorporates updated internal components and improved diagnostic firmware, offering enhanced reliability and performance in safety-critical and long-life applications.