Honeywell | MC-TDIY22 Digital Input Field Termination Assembly

Overview

The Honeywell MC-TDIY22 is a high-performance Digital Input Field Termination Assembly engineered for reliable signal interfacing in process automation systems. It provides secure connectivity between field digital input devices and Honeywell control systems, ensuring stable data acquisition and precise system monitoring across demanding industrial environments.

Technical Specifications

• Manufacturer: Honeywell

• Model Number: MC-TDIY22

• Product Type: Digital Input Field Termination Assembly

• Function: Connects and conditions digital input signals from field devices to system modules

• Number of Channels: 32 isolated digital input channels

• Input Voltage: 24 VDC nominal

• Input Type: Dry contact or open collector (depending on field configuration)

• Signal Isolation: Optically isolated between field and system

• Mounting Style: DIN-rail or chassis-mounted

• Connector Type: Screw terminal block for field wiring

• Operating Temperature Range: 0°C to +60°C

• Storage Temperature: -40°C to +85°C

• Humidity: 5–95% non-condensing

• Typical Power Consumption: <2 W

Applications

The MC-TDIY22 module is widely used in:

• Process control and monitoring in Honeywell distributed control systems (DCS)

• Petrochemical, refining, and power generation industries

• System control and data acquisition (SCADA) networks

• Industrial plants requiring high channel density digital signal interfacing

FAQ

Q1: Is the MC-TDIY22 compatible with Honeywell TDC3000 or Experion systems?
A1: Yes, it is designed for integration with Honeywell Experion and legacy TDC3000 I/O subsystems.

Q2: Can it handle both sink and source type inputs?
A2: The MC-TDIY22 supports configurable wiring options suitable for most standard digital input signal types.

Q3: What is the recommended wiring practice?
A3: Use shielded cables for long runs to minimize noise and ensure reliable digital signal transmission.