Process Control Module 8U-TAOXB1 | Honeywell

Overview

The Honeywell 8U-TAOXB1 is a 16-channel analog output module designed for Honeywell Experion PKS and TPS process control systems. It provides precise and stable 4–20 mA output signals for field devices such as actuators, transmitters, and control valves. The module supports redundant operation and features a compact, space-saving design. With built-in HART compatibility, it ensures advanced communication and monitoring capability in modern industrial automation systems.

Technical Specifications

• Manufacturer: Honeywell

• Model/Part Number: 8U-TAOXB1

• Product Type: Process Control / Analog Output Module

• Output Type: 4–20 mA DC

• Number of Output Channels: 16

• Output Ripple: 100 mV peak-to-peak

• Load Resistance: 50–800 Ω

• Power Supply Voltage: 24 VDC nominal

• Module Current Draw: 190 mA

• Output Resolution: ±0.05% of full scale

• Isolation Voltage: 500 VDC between system and field circuits

• HART Compatibility: Yes, supports field device communication and diagnostics

• Redundancy: Supported, uncoated variant for standard environments

• Hot-Swappable: Yes, module can be inserted or removed without system shutdown

• Operating Temperature: -20°C to +70°C

• Storage Temperature: -40°C to +85°C

• Dimensions: Approx. 305 mm (12 in) length

• Weight: Approx. 1.2 kg

Features

• High Accuracy: ±0.05% full-scale precision for stable and repeatable analog output.

• Wide Compatibility: 4–20 mA signal supports a variety of field instrumentation.

• Redundant Operation: Ensures continuous process control even during module replacement.

• HART Support: Enables advanced communication with smart field devices.

• Compact Design: 12-inch module length optimizes cabinet space utilization.

• Hot-Swappable Maintenance: Module can be replaced online without disrupting process operations.

• Reliable Construction: Built for industrial environments with uncoated PCB for standard installations.

Applications

The 8U-TAOXB1 module is designed for industrial process automation systems requiring precise analog signal control. Typical applications include:

• Regulating control valves and actuators in process plants

• Generating analog output signals for distributed control systems

• Managing temperature, pressure, and flow regulation loops

• Supporting redundant process architectures in power generation and refining sectors

FAQ

Q: Is the module compatible with Honeywell Experion PKS?
A: Yes, it is fully compatible with Experion PKS and TPS control architectures.

Q: Can the module be replaced while the system is powered?
A: Yes, it supports hot-swap functionality for continuous operation.

Q: Does it support HART communication?
A: Yes, the 8U-TAOXB1 allows two-way communication with HART-enabled field instruments.

Q: What environments is this module suitable for?
A: The uncoated version is designed for standard industrial settings. For harsh or corrosive conditions, a coated variant is recommended.

Similar Models Comparison

• 8U-TAOXA1: 8-channel analog output module for smaller control systems

• 8U-TAOHA1: Enhanced analog output version with redundant channel support and extended diagnostics