Overview
The Honeywell 2MLQ-TR4B Output Module is part of the MasterLogic‑200 PLC system, designed to provide reliable digital output control for industrial automation. It enables the PLC to drive field devices such as relays, solenoids, actuators, and indicators, ensuring safe and efficient operation in process control environments.
This module is widely used in power generation, petrochemical plants, oil & gas refineries, and manufacturing facilities, where deterministic control and robust output handling are critical for system reliability.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | 2MLQ-TR4B |
| Product Type | Digital Output Module |
Key Features
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4 Relay Output Channels: Provides flexible digital output control for field devices.
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AC and DC Load Compatibility: Supports both 24 VDC and 120–240 VAC loads.
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Galvanic Isolation: Protects against electrical noise and ensures safe operation.
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Compact Design: Easy installation in ML200 racks, saving space and reducing complexity.
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Certified Reliability: Certified by CE, UL, CSA, and TUV for industrial use.
Typical Applications
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Power Plants: Controlling turbine actuators, alarms, and interlocks.
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Petrochemical Facilities: Driving pumps, solenoids, and safety devices.
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Oil & Gas Refineries: Switching relays and shutdown systems.
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Manufacturing Plants: Operating machine indicators, motors, and control relays.
Example: In a refinery safety system, the 2MLQ-TR4B Output Module can energize shutdown relays when abnormal conditions are detected, ensuring rapid protective action.
FAQ
Q1: What is the primary function of the 2MLQ-TR4B Output Module?
A1: It provides relay-type digital outputs to control field devices like actuators, relays, and solenoids.
Q2: How many channels does it support?
A2: It supports 4 relay output channels.
Q3: What loads can it drive?
A3: It can handle 24 VDC and 120–240 VAC loads, with a maximum of 2 A per channel.
Q4: Does it provide isolation?
A4: Yes, it features galvanic isolation between channels, ensuring safe operation and protection from electrical noise.
Q5: Which industries typically use this module?
A5: This module is commonly used in power generation, petrochemical refining, oil & gas, and manufacturing sectors.
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