Honeywell MC-TAIH22 51204170-250 High Level Analog Input FTA

Product Overview

Honeywell’s MC-TAIH22 (Part Number 51204170-250) functions as a high-performance High Level Analog Input (HLAI) Field Termination Assembly (FTA). This module serves as the primary physical interface for the TDC 3000 and Experion PKS Distributed Control Systems. It actively streamlines the acquisition of analog data from field transmitters and sensors, converting these critical signals into a format compatible with the system’s Analog Input Processors. By providing 16 robust input channels, the MC-TAIH22 ensures precise monitoring of complex industrial variables.

Technical Specifications

• Manufacturer: Honeywell
• Model Number: MC-TAIH22
• Part Number: 51204170-250
• Module Type: High Level Analog Input Field Termination Assembly (FTA)
• Channel Capacity: 16 Input Channels
• Input Voltage Range: 15-30 Vdc
• Operating Temperature: -40°C to +85°C
• Storage Humidity: Up to 95% (Non-condensing)
• Protection Rating: IP20 Enclosure
• Physical Weight: 0.78 kg
• Dimensions: 30.6 cm x 12.0 cm x 7.5 cm
• Origin: USA

Core Functionality and Applications

The MC-TAIH22 empowers industrial control systems to interpret high-level signals from various field instruments with extreme accuracy. The module receives standard current or voltage signals—typically 4-20mA or 1-5V—and prepares them for digitized processing. Because it withstands extreme environmental stress, engineers frequently deploy this assembly in the following sectors:

• Oil and Gas Extraction: Monitoring pressure and temperature transmitters in remote wellhead locations.
• Chemical Manufacturing: Tracking flow rates and vessel levels in aggressive processing units.
• Waste Water Treatment: Supervising analytical sensors and pump statuses across distributed facilities.
• Power Utilities: Managing boiler and turbine instrumentation that requires high-availability data streams.

Key Technical Characteristics

• High-Density Signal Acquisition: The board manages 16 independent analog inputs, which maximizes I/O density while reducing the total footprint in the control cabinet.
• Extreme Temperature Tolerance: Honeywell constructs the circuitry to operate reliably from -40°C to +85°C, ensuring stable data collection in both arctic and tropical climates.
• Enhanced Signal Integrity: The module incorporates noise-filtering components that eliminate electromagnetic interference (EMI), protecting the accuracy of sensitive process measurements.
• Modbus Interface Capability: This module supports Modbus communication protocols, which expands its compatibility with a wide range of third-party control systems and Ethernet routers.
• Industrial Enclosure Protection: The IP20-rated design safeguards the internal components from dust and accidental contact, increasing the module’s operational lifespan in busy plant environments.
• Direct DCS Integration: As part of the MU-T series, the MC-TAIH22 offers plug-and-play synchronization with existing Honeywell automation infrastructures, simplifying system expansions.