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Honeywell 2MLI-D24A high – performance digital input/output module

The Honeywell 2MLI-D24A is a 32-point digital input module designed for industrial automation applications, particularly within Honeywell’s MasterLogic and ControlEdge PLC systems. This module accepts 24 V DC input signals from field devices such as sensors, switches, and push buttons, enabling seamless integration and monitoring of discrete signals in process and factory automation environments.

Description

The Honeywell 2MLI-D24A is a 32-point digital input module designed for industrial automation applications, particularly within Honeywell’s MasterLogic and ControlEdge PLC systems. This module accepts 24 V DC input signals from field devices such as sensors, switches, and push buttons, enabling seamless integration and monitoring of discrete signals in process and factory automation environments. Its compact and robust design ensures reliable performance in harsh industrial conditions.

Key technical features of the 2MLI-D24A include:

  • 32 discrete input channels, suitable for 24 V DC input signals.
  • Photo-coupler isolation for each input channel to prevent interference and enhance signal integrity.
  • Rated input voltage of 24 V DC with an operating voltage range of approximately 20.4 to 28.8 V DC (ripple < 5%).
  • Input current around 4 mA per channel.
  • Operating temperature range from -40 °C to +70 °C, suitable for extreme industrial environments.
  • Compact physical dimensions roughly 2.2 cm x 12.4 cm x 12.6 cm and a lightweight design (~0.1 kg).
Parameter Value
Model 2MLI-D24A
Brand Honeywell
Type Digital Input Module
Number of Inputs 32 discrete channels
Rated Input Voltage 24 V DC
Operating Voltage Range 20.4 to 28.8 V DC (ripple < 5%)
Input Current ~4 mA per channel
Isolation Photo-coupler isolation per channel
Operating Temperature -40 °C to +70 °C
Dimensions (LxWxH) Approx. 2.2 cm x 12.4 cm x 12.6 cm
Weight Approx. 0.1 kg
2MLI-D24A
2MLI-D24A

The 2MLI-D24A module is compatible with a broad range of Honeywell control systems, offering reliable and efficient discrete signal monitoring essential for automated process control.

Installation involves mounting in a suitable PLC rack compatible with Honeywell MasterLogic or ControlEdge platforms. Proper wiring, grounding, and shielding practices are advised to ensure high signal integrity and noise immunity. Routine checks on input signals and module diagnostics support operational reliability.