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    AI Overview
    The QX42 is
    a specific 64-point, 24V DC, sink-type digital input module for Mitsubishi Electric's MELSEC-Q series PLCs, acting as an essential interface for the controller to receive signals from industrial sensors and switches, not a standalone controller itself, but part of a larger PLC/PAC system managed by software like GX Works2/3 for automation tasks in manufacturing. 
    Key characteristics of the QX42 module: 
    • Type: Digital Input Module.
    • Capacity: 64 input points.
    • Voltage: 24V DC.
    • Connection: Sink type (common connected to negative/0V).
    • Platform: Integrates with Mitsubishi's MELSEC-Q Series PLC/PAC systems. 
    How it fits into a PLC/PAC system: 
    • I/O Expansion: It's an expansion module that plugs into a PLC rack, increasing the number of inputs the main CPU can handle.
    • Signal Conversion: It converts external electrical signals (from switches, proximity sensors) into digital data the PLC CPU can understand for processing.
    • Automation: Used in industrial automation for machine control, monitoring, and process optimization in factories. 
    In essence, the QX42 is a crucial component for a Mitsubishi PLC/PAC system to "see" and react to the physical world, enabling automated control. 
    • QX42 - MITSUBISHI ELECTRIC Europe
      Material number 132574. 64 point, 24V DC input (4mA), sink type, 32 points/common. Logistic Class: B. How to request a quotationWh...
      MITSUBISHI ELECTRIC Europe
    • Mitsubishi MELSEC-Q QX42 for Compact PLC Input Module ...
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    • Mitsubishi QX42 PLC - Premium Industrial Control Module
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    • What is Mitsubishi PLC? Competitors, Complementary Techs & Usage
      Nov 28, 2025 — Mitsubishi PLCs (Programmable Logic Controllers) are industrial computers used for automation of electromechanical pro...
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    • What is IO Module in PLC: A Comprehensive Overview Supplier
      The Role of I/O Modules in PLC These modules act as intermediaries, enabling the PLC to interact with various external devices, se...
      Hunan SonnePower International Co., Ltd
    • QX42 - I-O Units (Mitsubishi Electric)
      QX42 - Digital input unit module - Mitsubishi Electric (MELSEC-Q QnU series) - 64I/O [64DI (64 x digital inputs (24Vdc; Sink))]
      MITSUBISHI ELECTRIC Global website
    • Buy Mitsubishi QX42 Q Series 64 Input 32 Output Digital Input Module Online at Best Prices - Industrybuying.
      Mitsubishi QX42 Q Series 64 Input 32 Output Digital Input Module No. Of Inputs 64 Input Type Digital Input Module Dimensions (W x ...
      Industry Buying
    • Mitsubishi QY42P PLC Module, MELSEC-Q Series at ₹ 15800 in Ghaziabad | ID: 2856564810691
      Easy Integration: Compatible with Mitsubishi's MELSEC-Q Series ( Mitsubishi Q Series PLC ) PLCs, facilitating straightforward syst...
      IndiaMART
    • QX42 - MITSUBISHI ELECTRIC Europe
      Material number 132574. 64 point, 24V DC input (4mA), sink type, 32 points/common. Logistic Class: B. How to request a quotationWh...
      MITSUBISHI ELECTRIC Europe
    • Mitsubishi MELSEC-Q QX42 for Compact PLC Input Module ...
      Free shipping. Includes import fees. New. Bulk savings: Qty 1. 10 available. Buy 1$45.54/ea$45.54 each Buy 2$44.63/ea$44.63 each B...
      eBay
    • Mitsubishi QX42 PLC - Premium Industrial Control Module
      Industrial Applications of QX42 PLC The QX42 Programmable Logic Controller (PLC) is a robust automation solution trusted across di...
      Alibaba.com
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    QX42


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    https://emea.mitsubishielectric.com › plc › plcq › input
    MITSUBISHI ELECTRIC Europe
    https://emea.mitsubishielectric.com › plc › plcq › input
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