2MLF-AD16A-CC | Honeywell | Analog Input Module

The Honeywell 2MLF-AD16A-CC is a high-density 16-channel analog input module designed for MasterLogic-200 PLC architectures. It converts field analog process signals into digital values for CPU processing, featuring a maximum conversion speed of 500 us per channel and photo-coupler isolation between input terminals and system logic power.

Signal Processing and Electrical Isolation

The module provides high precision with an accuracy of +/-0.2% or less at ambient temperatures of 25 +/- 5 deg C, maintaining +/-0.3% or less across the entire 0 to 55 deg C operating range. Input channels connect via a 32-point terminal interface.

Electrical protection is implemented using photo-coupler isolation between the field input terminals and the internal PLC power bus. Channel-to-channel isolation is not provided, requiring connected field circuits to share a common potential reference.

Addressing and Power Consumption

The module draws 330 mA at 5 VDC from the internal backplane bus. System address assignment supports both fixed configuration (64 points) and variable configuration (16 points) depending on rack setup requirements.

Technical Specifications

Frequently Asked Questions

Q: Are individual channels on the 2MLF-AD16A-CC electrically isolated from each other?

A: No. The module features photo-coupler isolation between field input terminals and PLC power, but there is no channel-to-channel isolation.

Q: What addressing modes are available for this module in MasterLogic-200 systems?

A: It supports fixed addressing using 64 points or variable addressing using 16 points.

Q: What is the backplane current draw for the 2MLF-AD16A-CC module?

A: The module draws 330 mA at 5 VDC from the backplane power supply.