Configured for high-level analog signal conditioning in Experion LX Distributed Control System (DCS) platforms, the Honeywell MC-TAIH03 51309136-175 (MC-TAIH03 High-Level Analog Input Field Termination Assembly) provides direct physical/electrical execution. The assembly processes incoming field transmitter currents and voltages across 16 channels, converting raw signals into digitizing backplane data over the Universal Control Network (UCN) interface.
Hardware Specifications
Parameter
Specification
Model
MC-TAIH03 / 51309136-175
Brand
Honeywell
Origin
USA
Weight
0.3 kg
Dimensions
150 mm x 80 mm x 15 mm
Operating Temp
-40 to +70 deg C
Power Consumption
2.4 W
System Supply
24 VDC
Input Channels
16 Analog Input Channels
Input Signals
4-20 mA / 0-10 V / +/-10 VDC
Accuracy & Resolution
+/-0.1% Full-Scale / 16-bit
4-20 mA HART Loop Protocol and Channel Isolation
The MC-TAIH03 integrates high-density channel-to-channel isolation networks designed to suppress common-mode electrical noise and prevent ground loop propagation across process control loops. Each input path maintains high input impedance to eliminate loading effects on connected field transmitters. The board architecture supports 4-20 mA HART loop protocol communications, routing analog signals to 16-bit analog-to-digital converters while preserving high-frequency digital signal components for asset management pass-through.
Frequently Asked Questions
Q: What signal input ranges are supported across the 16 termination channels? A: Channels accept 4-20 mA current signals, 0-10 V voltage signals, and direct +/-10 VDC voltage inputs.
Q: Can field wiring terminals be connected while backplane power is applied?
A: Power to the specific termination assembly slot should be isolated prior to wiring or board installation to avoid arcing and unwanted signal disruption.
Field Installation Guidelines
Disconnect 24 VDC system power prior to mounting or removing the field termination assembly.
Secure the 150 mm x 80 mm assembly onto the mounting rack using designated mechanical fasteners.
Terminate 4-20 mA current loop and 0-10 V voltage wiring onto designated screw terminals, securing screws with 5 full thread engagements.
Route low-voltage analog signal cables separately from high-voltage AC utility wires by at least 200 mm inside cabinet raceways.
Ground field cable shields at a single point on the cabinet instrument earth bar to maintain high conversion accuracy and prevent ground loops.
