Honeywell DC-TAOX01 Series C Analog Output IOTA

The DC-TAOX01 is a Series C analog output IOTA engineered by Honeywell to deliver precise current signal transmission to actuators, indicators, and control devices. This 16-channel assembly supports advanced fail-safe configurations and high-precision current regulation, ensuring reliable loop performance for demanding industrial automation applications.

Output Channels and Signal Accuracy

The module provides 16 independent analog current output channels designed for 4-20 mA control loops. It maintains a current linearity of +/-0.05 percent of full scale nominal and a calibrated accuracy of +/-0.35 percent of full scale at 25 deg C. Readback accuracy is specified at +/-4 percent of full scale, while output ripple remains under 100 mV peak-to-peak across a 250 ohm load.

Resolution and Output Range

Signal generation features a resolution of +/-0.05 percent of full scale, supporting a settable output range that includes 0 mA, 2.9 mA to 21.1 mA. To ensure operational stability under thermal variations, the circuitry exhibits a temperature drift of 0.005 percent of full scale per deg C.

Fail-Safe and Protection Features

For enhanced system safety, the unit supports configurable fail-safe actions on a per-channel basis, allowing outputs to hold their last known value or shed to a safe value upon communication loss. Furthermore, zero output protection automatically drives channel outputs to zero if the IOM electronics experience a failure.

Frequently Asked Questions

Q: What fail-safe modes are supported by the module?

A: The module supports per-channel configurations to either hold the last value or shed to a safe value during system faults.

Q: What is the specified output load condition for measuring output ripple?

A: The output ripple of less than 100 mV peak-to-peak is measured across a 250 ohm load.

Q: How does the module behave if the IOM electronics fail?

A: It features zero output protection that automatically defaults channel outputs to zero.