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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.

    1177 產品顯示為 PLCs - Programmable Logic Controllers

    • RS庫存編號 279-3082
    • 製造零件編號 750-890
    HK$6,934.81
    WAGO
    -
    750
    2
    -
    -
    24 V
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    HK$10,930.90
    Omron
    -
    CP1L
    36
    Transistor
    SYSMAC CP1L Series
    -
    DC
    -
    24
    20.4 → 26.4 V dc
    Peripheral USB Port
    -
    -
    -
    -
    -
    Better World
    • RS庫存編號 806-6792
    • 製造零件編號 TM241CE24U
    HK$5,040.50
    Schneider Electric
    -
    Modicon M241
    14
    Transistor
    -
    -
    -
    -
    10
    24 V
    Ethernet, ModBus, Profibus DP, USB
    -
    -
    Yes
    Green Premium
    -
    HK$15,090.60
    Mitsubishi Electric
    -
    FX5U
    40
    Relay, Transistor
    MELSEC IQ-F Series IQ Platform-Compatible PLC
    -
    Sink, Source
    -
    40
    100 → 240 V ac
    Inverter Communication, MELSEC Communication protocol (3C/4C Frames), MELSOFT Connection, Modbus RTUI, N:N Network, Predefined Protocol Support, SLMP (3E Frame), Socket Communication
    -
    -
    -
    -
    -
    HK$3,415.30
    Omron
    -
    CP1L
    8 (DC)
    Transistor
    SYSMAC CP1L Series
    -
    DC
    -
    6 (Transistor)
    20.4 → 26.4 V dc
    USB
    -
    -
    -
    -
    -
    • RS庫存編號 215-7457
    • 製造零件編號 CJ1W-NC471
    HK$15,738.30
    Omron
    -
    CJ1W
    4
    -
    CJ1 Series
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    • RS庫存編號 215-8815
    • 製造零件編號 CP2E-N14DT1-D
    HK$3,386.50
    Omron
    -
    CP2E
    -
    -
    -
    -
    PNP/NPN
    8
    6
    -
    -
    -
    -
    -
    -
    -
    HK$2,896.90
    WIS Portenta
    -
    WIS PLC Series
    8
    Relay
    PLC Accessories
    12 → 24 V dc
    Digital and Analog
    -
    -
    -
    -
    -
    -
    -
    -
    -
    HK$3,947.10
    Industrial Shields
    -
    ESP32
    26
    Analogue, Digital
    -
    12 → 24 V dc
    Analog, Digital
    -
    -
    -
    -
    -
    -
    -
    -
    -
    • RS庫存編號 279-3086
    • 製造零件編號 750-893
    HK$7,628.30
    WAGO
    -
    750
    2
    -
    -
    24 V
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    • RS庫存編號 184-5712
    • 製造零件編號 NX102-1100
    HK$27,862.80
    Omron
    -
    NX102
    -
    -
    Machine Automation Controller NX1
    -
    -
    -
    -
    24 V dc
    EtherCAT, EtherNet/IP
    -
    -
    -
    -
    -
    HK$4,294.30
    Mitsubishi Electric
    -
    FX3S
    16 (Sink/Source)
    Transistor (Source)
    FX3 Series
    -
    Sink, Source
    -
    14 (Transistor)
    24 V dc
    Ethernet, ModBus
    -
    -
    -
    -
    -
    HK$5,856.90
    Industrial Shields
    -
    M-DUINO
    29
    Relay
    -
    12 → 24 V dc
    Analog, Digital
    -
    -
    -
    -
    -
    -
    -
    -
    -
    • RS庫存編號 214-6600
    • 製造零件編號 NJ501-1420
    HK$72,930.00
    Omron
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    • RS庫存編號 214-6628
    • 製造零件編號 NX701-1620
    HK$83,569.20
    Omron
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    • RS庫存編號 215-7327
    • 製造零件編號 CJ1W-NC482
    HK$25,194.90
    Omron
    -
    CJ1W
    -
    -
    CJ
    -
    Servo Drives
    -
    -
    -
    -
    -
    -
    -
    -
    -
    • RS庫存編號 214-6594
    • 製造零件編號 NJ301-1100
    HK$37,614.72
    Omron
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    HK$6,240.70
    Omron
    -
    CP2E
    24
    Transistor
    CP2E Series
    -
    Digital
    24
    16
    24 V dc
    Ethernet
    16
    -
    -
    -
    RS-485
    • RS庫存編號 226-3985
    • 製造零件編號 6ES7416-3XS07-0AB0
    HK$190,270.20
    Siemens
    -
    SIMATIC S7-400
    0
    -
    SIMATIC S7-400 Series
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    HK$13,931.60
    Omron
    -
    CJ1W
    2
    -
    CJ1 Series
    -
    Line Driver (RS-422), No-Voltage, NPN, PNP
    -
    -
    -
    -
    -
    -
    -
    -
    -
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