TC-FIAH81 Honeywell High-Level Analog Input Module

Product Description

The Honeywell TC-FIAH81 is a high-level analog input module specified for C200 and TDC 3000 control systems. It provides eight single-ended input channels that accept configurable voltage or current signals from field devices. The module converts analog measurements into digital data for controller processing, with a 256 us conversion rate across all channels and 12-bit unipolar voltage resolution. Its input configuration supports both voltage and current measurement, subject to the applicable signal range.

Technical Specifications

Input Configuration and Signal Processing

The TC-FIAH81 accepts voltage or current signals on its eight single-ended channels. Voltage inputs support both unipolar and bipolar measurement ranges, while current inputs support standard 0-20 mA and 4-20 mA signals. Confirm the required input range and channel configuration before connecting field wiring.

The module uses a left-justified, 16-bit two's-complement data format. Its specified conversion rate is 256 us for all channels. The stated accuracy of +/-0.20% of full scale applies at 25 deg C; actual measurement performance may vary with operating conditions.

Electrical Protection and Isolation

The module provides 850 VDC isolation between the user side and system side for 1 second. However, the input channels are not isolated from one another, so separate channel isolation should not be assumed. The stated continuous overload limits are 30 V for voltage and 32 mA for current, with the protection rating applying to one channel at a time.

Frequently Asked Questions

Q: How many analog signals can the TC-FIAH81 measure?

A: The module has eight single-ended analog input channels. Each channel supports voltage or current measurement within the specified input ranges and applicable configuration.

Q: Can the TC-FIAH81 accept 4-20 mA transmitters?

A: Yes. The specified current input ranges include 4-20 mA and 0-20 mA. Check the channel configuration and field wiring requirements before commissioning.

Q: Are the eight input channels individually isolated?

A: No. The specified 850 VDC isolation applies between the user side and system side for 1 second. The input channels are not isolated from each other.

Other Attributes

• Series: Honeywell Experion PKS(C200,C300)
• Country of Origin:  USA
• Lead Time: In Stock, 2 Working Days

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