Overview
The Honeywell 2MLL-C42B Analog Input/Output Module is part of the MasterLogic‑200 PLC system, designed to provide reliable analog signal processing for industrial automation. It supports both analog input and analog output channels, enabling precise measurement and control of process variables such as temperature, pressure, flow, and level.
This module is widely used in power generation, petrochemical plants, oil & gas refineries, and manufacturing facilities, where accurate analog data acquisition and control are essential for safe and efficient operations.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | 2MLL-C42B |
| Product Type | Analog Input/Output Module |
Key Features
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Dual Functionality: Supports both analog input and output channels in a single module.
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High Accuracy: 12–16 bit resolution ensures precise measurement and control.
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Galvanic Isolation: Protects signals from electrical noise and interference.
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Flexible Signal Support: Handles voltage and current signals for diverse applications.
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Compact Modular Design: Simplifies installation in ML200 racks.
Typical Applications
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Power Plants: Monitoring turbine parameters and controlling actuators.
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Petrochemical Facilities: Measuring flow, pressure, and temperature while driving control valves.
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Oil & Gas Refineries: Providing analog feedback for process safety systems.
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Manufacturing Plants: Supporting automation of production lines with analog sensors and actuators.
Example: In a chemical processing plant, the 2MLL-C42B module can read analog signals from flow transmitters while simultaneously sending output signals to control valves, ensuring precise process regulation.
FAQ
Q1: What is the primary function of the 2MLL-C42B Module?
A1: It processes both analog input and output signals for measurement and control in PLC systems.
Q2: Which signals are supported?
A2: It supports voltage and current signals, commonly used in industrial sensors and actuators.
Q3: Does it provide isolation?
A3: Yes, the module features galvanic isolation between channels to prevent interference.
Q4: Which industries typically use this module?
A4: Power generation, petrochemical refining, oil & gas, and manufacturing sectors.
Q5: How does it improve reliability?
A5: By combining accurate analog input and output in one module, it reduces hardware complexity and ensures precise control.
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