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    PLCs - Programmable Logic Controllers

    PLC stands for Programmable Logic Controller. It is a digital computer-based control system commonly used in industrial automation to monitor and control machinery or processes. A PLC is designed to withstand harsh industrial environments and is typically used to automate tasks that require precision, reliability, and flexibility. It consists of a programmable microprocessor, input and output modules, and various communication interfaces.

    How do PLCs (Programmable Logic Controllers) work?

    PLCs (Programmable Logic Controllers) work by executing a program or set of instructions to control and automate industrial processes.

    • Input Acquisition
    • Program Execution
    • Program Logic
    • Decision Making
    • Output Control
    • Communication
    • Monitoring and Diagnostics

    What are the benefits of PLCs (Programmable Logic Controllers)?

    • Flexibility: Provide a high degree of flexibility in terms of programming and reprogramming. They allow for easy modification and adaptation of control logic to accommodate changes in the process or system requirements without requiring hardware modifications.
    • Reliability: Designed for reliable operation in harsh industrial environments. They are built to withstand extreme temperatures, vibration, electrical noise, and other challenging conditions. PLCs are known for their robustness and durability.
    • Real-time Operation: Offer real-time control, enabling precise and timely response to inputs and events. This is crucial in applications that require fast and accurate control, such as high-speed manufacturing processes or critical safety systems.
    • Diagnostics and Troubleshooting: PLCs provide built-in diagnostics and monitoring capabilities, allowing operators to detect faults, analyse performance, and troubleshoot issues quickly. This facilitates maintenance and minimizes downtime.
    • Safety Features: Many PLCs offer safety-oriented functionality, including specialized programming languages and certified safety modules. Safety PLCs ensure compliance with industry safety standards and provide features such as safety interlocks, emergency stop functions, and fault detection.
    • Remote Access and Monitoring: PLCs with network connectivity allow for remote access and monitoring, enabling operators to control and monitor processes from a central location or through secure remote connections. This enhances operational efficiency and facilitates remote troubleshooting.

    What applications use PLCs (Programmable Logic Controllers)?

    • Manufacturing
    • Power Generation and Distribution
    • Chemical and Petrochemical Industry
    • Water and Wastewater Treatment
    • Food and Beverage Industry
    • Automotive Industry
    • Pharmaceutical Industry
    • Packaging and Material Handling
    • Oil and Gas Industry

    More information can be found in our PLCs guide.

    1161 Products showing for PLCs - Programmable Logic Controllers

    Allen Bradley
    -
    -
    20
    Relay
    PLC Micrologix 1400 series
    120 V ac, 240 V ac
    Digital
    -
    12
    -
    -
    -
    -
    -
    -
    -
    Eaton
    -
    Easy
    12
    Relay
    easyControl
    24 V dc
    Analogue, Digital
    12
    6
    -
    CANOpen, EasyNet
    -
    -
    -
    -
    -
    Crouzet
    -
    Millenium 3
    12
    Relay
    -
    24 V dc
    Analogue, Digital
    -
    8
    -
    -
    -
    -
    -
    -
    -
    Omron
    -
    ZEN
    6
    Relay
    -
    85 → 264 V ac
    Analogue
    -
    4
    -
    -
    -
    -
    -
    -
    -
    Eaton
    -
    EasyE4
    4
    Relay
    -
    12 V dc, 24 V dc
    Digital
    4
    4
    24 V
    Ethernet
    4
    -
    -
    -
    -
    TECO Westinghouse
    -
    SG2
    8
    Relay
    Industrial Automation
    24 V
    Analog
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Mitsubishi Electric
    -
    FX3U
    16
    Relay
    -
    100 → 240 V ac
    Sink, Source
    -
    16
    -
    -
    -
    -
    -
    -
    -
    Schneider Electric
    -
    Zelio Logic
    8
    Relay
    -
    120 V ac, 240 V ac
    Discrete
    -
    4
    100 → 240 V ac
    -
    -
    -
    Yes
    Green Premium
    -
    Crouzet
    -
    Millenium 3
    8
    Relay
    -
    24 V dc
    Analogue, Digital
    -
    4
    -
    -
    -
    -
    -
    -
    -
    Eaton
    -
    Easy
    12
    Relay
    easyControl
    24 V dc
    Analogue, Digital
    -
    6
    -
    CANOpen, EasyNet
    -
    -
    -
    -
    -
    Siemens
    -
    LOGO!
    12
    Relay
    LOGO! 8.4
    12 → 24 V dc
    Analogue, Digital
    8
    4
    -
    Ethernet
    4
    -
    -
    -
    -
    Mitsubishi Electric
    -
    FX3G
    36
    Relay
    -
    100 → 240 V ac
    Sink, Source
    -
    24
    -
    -
    -
    -
    -
    -
    -
    Schneider Electric
    -
    Zelio Logic
    12
    Relay
    -
    100 → 240 V ac
    Discrete
    -
    8
    -
    -
    -
    -
    Yes
    Green Premium
    -
    Schneider Electric
    Kit Included
    Modicon M221
    24
    Relay
    -
    100 to 240 V ac
    Discrete
    -
    16
    -
    Ethernet
    -
    -
    Yes
    Green Premium
    RS232, RS485, USB
    Schneider Electric
    -
    Zelio Logic
    8
    Transistor
    -
    24 V dc
    Analogue, Discrete
    -
    4
    24 V dc
    -
    -
    -
    Yes
    Green Premium
    -
    Schneider Electric
    -
    Zelio Logic
    16
    Transistor
    -
    24 V dc
    Analogue, Discrete
    -
    10
    24 V
    -
    -
    -
    Yes
    Green Premium
    -
    Industrial Shields
    -
    M-Duino
    28
    Relay
    -
    12 → 24 V dc
    Analog, Digital
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Eaton
    -
    EasyE4
    4 (Analogue), 8 (Digital)
    Transistor
    -
    24 V dc
    Analogue, Digital
    8
    4
    24 V
    Ethernet
    4
    -
    -
    -
    -
    Crouzet
    -
    Millenium Evo
    16
    Relay
    XD26 Series
    24 V dc
    Analogue, Digital
    -
    10
    -
    -
    -
    -
    -
    -
    -
    Crouzet
    -
    Millenium 3
    16
    Relay
    -
    -
    Analog, Digital
    16
    10
    24 V DC
    -
    -
    -
    -
    -
    -
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