Overview

The Honeywell 2MLI-CPUU CPU Module is the central processing unit for the MasterLogic-200 PLC system, responsible for managing program execution, I/O scanning, and communication with other modules and networks. Widely used in industries such as process automation, manufacturing, petrochemical plants, and power generation, this module ensures deterministic control and high reliability.

It supports versatile programming languages, including ladder logic, SFC (Sequential Function Chart), and structured text, making it adaptable to various engineering needs.

Technical Specifications

Key Features

• High-Speed Processing: Supports complex control logic and real-time applications with fast processing speeds.

• Flexible Programming Support: Supports Ladder Diagram, SFC, and Structured Text programming for diverse engineering needs.

• Robust Communication Protocols: Integrates seamlessly with Honeywell DCS and third-party systems.

• Compact and Lightweight Design: Easy to install in PLC racks, saving space and simplifying setup.

• Certified Reliability: Meets global safety standards with CE, TUV, UL, and CSA approvals.

Typical Applications

• Power Plants: Managing turbine and boiler control sequences.

• Petrochemical Facilities: Handling interlocks and batch process automation.

• Manufacturing Plants: Coordinating machine logic and safety interlocks.

• Oil & Gas Refineries: Supervising distributed control and emergency shutdown systems.

For example, in a chemical plant, the 2MLI-CPUU CPU Module executes complex batch sequences while maintaining deterministic scan cycles, ensuring both safety and efficiency.

FAQ

Q1: What is the memory capacity of the 2MLI-CPUU?

A1: It supports 4 MB of program memory (earlier versions had smaller capacities).

Q2: Which programming languages are supported?

A2: It supports Ladder Diagram, Sequential Function Chart (SFC), and Structured Text.

Q3: How fast is the processing speed?

A3: Basic instructions execute in 0.028 μs per step, with real number operations under 2.24 μs.

Q5: Which industries use this CPU module?

A5: It is used in power generation, petrochemical, oil & gas, and manufacturing industries.