Product Overview

The Honeywell MLC-DN64H/DC is a specialized, high-density control module designed for the MasterLogic PLC series. This unit uniquely combines robust digital output capabilities with integrated power management features, serving as a primary interface for driving discrete field devices. It is engineered with 32 transistor-type sinking outputs (24V DC), providing high-speed switching for actuators, relays, and indicator panels in advanced Distributed Control Systems (DCS).

Built to excel in electrically noisy industrial environments, the MLC-DN64H/DC utilizes photo-coupler isolation to safeguard internal logic from external voltage transients. Its high-speed processing core allows it to execute basic instructions at a deterministic rate of 83 nanoseconds per step, making it an ideal choice for time-critical manufacturing processes and complex automation sequences where latency is not an option.

Key Technical Characteristics

• High-Density Sinking Outputs: Features 32 digital output points rated at 24V DC, with each point capable of handling up to 0.5A, supporting a wide range of industrial loads.

• Integrated Power Architecture: Designed to operate with a broad AC input range (100–240V AC), regulating internal system power while managing field-side DC distribution.

• Deterministic Logic Execution: Optimized for rapid response with a base instruction speed of 83ns, supporting repetitive, cyclic, and interrupt-driven scan modes.

• Advanced Surge Protection: Incorporates Zener diode protection on all output channels to suppress inductive flyback and voltage spikes, ensuring the longevity of connected field devices.

• Electrical Isolation: Employs photo-coupler technology to provide a secure barrier between the field-side 24V DC circuits and the sensitive PLC processor.

• Efficient Thermal Design: Maintains a low voltage drop ($\le 0.4V$) during operation and a negligible OFF-state leakage current ($\le 0.1mA$), reducing heat generation within the control cabinet.

• Flexible Programming Support: Fully compatible with ladder logic and instruction list formats, utilizing a library of over 700 basic and applied instructions.

Technical Specifications

• Manufacturer: HONEYWELL

• Model Number: MLC-DN64H/DC

• Module Function: Digital Output / Integrated Power Supply

• Output Channels: 32 Points (Sinking / Transistor)

• Rated Load Voltage: 24V DC (Range: 10.2 to 26.4V DC)

• Maximum Load Current: 0.5A per point

• Instruction Speed: 83ns per step

• Surge Protection: Zener Diode Integrated

• Power Input: 100–240V AC

• Weight: 0.4kg (Net) / 1.4kg (Shipping)

• Dimensions: 7 x 14 x 14.5 cm

• HS Code: 8537101190

• Country of Origin: USA

Industrial Application Areas

• Discrete Manufacturing: Controlling high-speed sorting gates, pneumatic solenoids, and pick-and-place robotics.

• Automotive Assembly: Managing digital feedback loops and actuator arrays on production lines.

• Water & Wastewater: Driving status indicators and chemical dosing pump relays in treatment facilities.

• Material Handling: Coordinating high-frequency conveyor start/stop sequences and safety interlock signals.