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Honeywell TC-HAI081 High-Level Analog Input Module

The Honeywell TC-HAI081 (9060029-04), also cataloged as the TC-HAI081 High-Level Analog Input Module, operates as a dedicated hardware component for converting field analog signals into digital process values within Honeywell Series C I/O systems.

Hardware Specifications

Parameter	Specification
Model	TC-HAI081
Brand	Honeywell
Part Number	9060029-04
Origin	United States
Module Type	High-Level Analog Input Module with HART
System Platform	Honeywell Experion PKS / PlantCruise Series C I/O
Number of Channels	8 analog input channels
Input Signal Range	4-20 mA / 1-5 VDC
Analog Conversion	16-bit ADC
HART Support	HART pass-through communication
Channel Isolation	Channel-to-system galvanic isolation
Module Power Input	24 VDC nominal
Power Consumption	Approx. 3.5 W
Operating Temp	0 deg C to 60 deg C
Storage Temp	-40 deg C to 85 deg C
Relative Humidity	5% to 95% RH, non-condensing
Mounting Type	Series C I/O rack installation
Hot Swap Capability	Supported for removal and insertion under power (RIUP)

4-20 mA HART Loop and Isolation Characteristics

The TC-HAI081 processes standard 4-20 mA analog transmitter signals and supports HART loop communication for smart field device access. The module separates analog measurement processing from digital HART data transmission, allowing configuration and diagnostic information to pass through the I/O architecture.

The input circuit provides channel-to-system isolation to reduce signal interference between field wiring and controller electronics. The 16-bit analog-to-digital converter converts measured process variables into digital values for execution by the Honeywell controller environment.

Frequently Asked Questions

Q: Does the TC-HAI081 support direct HART communication with field transmitters?
A: Yes. The module provides HART pass-through capability, allowing digital communication with compatible smart transmitters while maintaining the 4-20 mA measurement loop.

Q: Can the TC-HAI081 be replaced while the I/O rack remains powered?
A: Yes. The module supports removal and insertion under power (RIUP) when installed in a compatible Series C I/O system configuration.

Q: What type of field signals can be connected to the TC-HAI081?
A: The module accepts standard high-level analog inputs including 4-20 mA current signals and 1-5 VDC voltage signals from field instrumentation.

Field Installation Guidelines

• Install the module in the designated Honeywell Series C I/O rack position according to the system hardware configuration.
• Separate analog field wiring from high-voltage power cables to minimize electrical noise coupling.
• Use shielded instrumentation cable for analog signal connections where required by the installation design.
• Connect cable shields according to the plant grounding specification and avoid multiple grounding points on signal shields.
• Verify transmitter loop polarity and signal range before applying field power.
• Confirm controller configuration matches the installed module type and channel assignments before process operation.

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