Description

Product Overview

The Honeywell MLI-DN32H is a high-speed, 32-point digital interface module designed for the MasterLogic PLC and ML50 series controllers. It integrates 16 channels of 24V DC inputs and 16 channels of sink-type outputs into a single high-performance unit to streamline industrial signal processing.

High-Speed Processing and Scanning Versatility

The MLI-DN32H serves as a core component for real-time automation, delivering an impressive execution speed of 83 nanoseconds per instruction step. This processing power allows the module to handle complex logic sequences with minimal latency. To accommodate diverse operational needs, the module supports several scanning modes, including cyclic, repetitive, constant, and interrupt-driven scans. This flexibility ensures that the controller can prioritize critical safety signals or maintain steady process loops depending on the specific demands of the machinery or production line.

Precise Input and Output Management

This hybrid module features a sophisticated electrical design for both signal acquisition and actuation. The input section manages 16 channels of 24V DC signals, while the output section utilizes an open collector sink configuration across 16 channels. Most output points support a maximum load current of 0.5A, although specific channels (P20-P23) are optimized for 0.1A loads. Furthermore, the unit incorporates relay insulation and maintains an extremely low OFF leakage current of 0.1mA or less. These characteristics ensure that the module prevents accidental triggering and provides clean, reliable switching for connected actuators and indicators.

Industrial Durability and System Expansion

Engineered for demanding DCS environments, the MLI-DN32H operates reliably within a wide voltage tolerance of 10.2V to 26.4V DC. The module utilizes a common-point configuration of 4 points per COM, which simplifies wiring architecture in dense control cabinets. While the base unit is compact, it acts as a foundation for larger systems, supporting expansion up to 384 I/O points. This scalability makes it an ideal solution for medium-scale automation projects where space efficiency and high-density digital control are primary requirements.

Technical Characteristics