Honeywell DC-TAOX01 Analog Output Module

Technical Overview

The Honeywell DC-TAOX01 is a high-density analog output module designed for the Experion PKS Series C distributed control system . This module delivers precise 4–20 mA constant current signals to actuators, valves, positioners, and recording devices . It provides 16 independent output channels in a compact IOTA (Input/Output Termination Assembly) footprint . The module features isolated outputs that effectively prevent interference in electrically noisy industrial environments . It supports HART communication, enabling access to smart instrument diagnostics and configuration data .

Technical Specifications

Parameter	Specification
Manufacturer	Honeywell
Model Number	DC-TAOX01
Product Type	Analog Output IOTA Module
System Compatibility	Experion PKS Series C, C300, FSC, DCS
Output Channels	16
Output Signal	4–20 mA (expandable to 21.1 mA)
Calibrated Accuracy	±0.35% full scale at 25°C
Resolution	±0.05% full scale
Output Linearity	±0.05% full scale
Readback Accuracy	±4% full scale
Output Ripple	<100 mV peak-to-peak at 250 Ω load
Temperature Drift	0.005% full scale/°C
Compliance Voltage	24 VDC maximum
Supply Current	0.311 A @ 24 VDC
Isolation	Channel-to-channel and channel-to-ground
Operating Temperature	-40°C to +70°C
Storage Temperature	-40°C to +85°C
Dimensions	Approx. 12.7 x 12.7 x 3.2 cm
Weight	0.15–0.2 kg
Country of Origin	USA

Key Features

High-Precision Signal Generation – The Honeywell DC-TAOX01 delivers ±0.35% calibrated accuracy with 16-bit resolution, ensuring precise control for demanding process applications.

Fail-Safe Configuration – The module supports the FAILOPT parameter on a per-channel basis, allowing users to configure each channel to either hold the last value or shed to a safe value . The output automatically goes to zero if the electronics fail.

HART Communication Pass-Through – This module includes built-in HART pass-through on each channel, enabling remote diagnostics and configuration of smart field devices .

Hot-Swap Capability – Users can replace the module without powering down the system, minimizing process interruption during maintenance .

Diagnostic LED Indicators – Front-panel LEDs provide immediate visual feedback on power, communication, and fault status, simplifying troubleshooting .

Compact IOTA Design – The module integrates electronics and field terminations in a single assembly, saving cabinet space and reducing installation complexity .

Applications

The Honeywell DC-TAOX01 excels in oil and gas refineries, chemical processing plants, power generation facilities, and pharmaceutical manufacturing. It provides precise analog output control for valves, variable frequency drives, and positioning systems within Experion PKS-based distributed control architectures.