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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.

    1166 產品顯示為 PLCs - Programmable Logic Controllers

    • RS庫存編號 200-8952
    • 製造零件編號 6ES7510-1DJ01-0AB0
    HK$11,575.50
    Siemens
    -
    SIMATIC DP
    20
    -
    ET 200SP
    24 V
    -
    -
    20
    -
    Ethernet
    -
    -
    -
    -
    PROFINET
    • RS庫存編號 224-7377
    • 製造零件編號 LRD12RD024
    HK$1,811.10
    Lovato
    -
    LRD
    8
    Relay
    -
    -
    Analog, Digital
    6
    4
    -
    -
    -
    -
    -
    -
    -
    HK$10,205.10
    Omron
    -
    NX1P
    14
    NPN
    NX Series
    -
    PNP/NPN
    14
    10
    -
    EtherCAT, EtherNet/IP
    10
    -
    -
    -
    -
    HK$16,523.20
    Siemens
    -
    SIMATIC S7-1500T
    20
    CPU
    SIMATIC S7-1500 Series
    -
    -
    20
    20
    24 V DC
    Profinet
    20
    -
    -
    -
    PROFIBUS, PROFINET
    HK$47,884.70
    Siemens
    -
    SIMATIC S7-1500T
    20
    CPU
    SIMATIC S7-1500 Series
    -
    -
    20
    20
    24 V DC
    Ethernet, Profinet
    20
    -
    -
    -
    PROFINET
    HK$1,314.30
    Arduino
    -
    Opta RS485
    -
    Relay
    -
    12 → 24 V
    Analogue, Digital
    8
    -
    -
    Ethernet
    -
    -
    -
    -
    Ethernet, RS485, USB
    HK$1,503.40
    Siemens
    -
    LOGO!
    8
    Relay
    LOGO! 8.4
    115 V ac/dc, 230 V ac/dc
    Digital
    8
    4
    -
    Ethernet
    4
    Concentrated or compact solution
    Yes
    -
    -
    HK$6,091.70
    Schneider Electric
    -
    XPSMCM
    8
    PNP
    Expansion Modules
    24 V dc
    PNP, Safety Input
    -
    -
    -
    -
    -
    -
    -
    -
    -
    HK$2,676.10
    Schneider Electric
    Kit Included
    Zelio Logic 2
    8 (Digital)
    Relay
    Zelio 2
    -
    Digital
    -
    4 (Relay)
    100 → 240 V ac
    -
    -
    -
    Yes
    Green Premium
    -
    • RS庫存編號 276-9155
    • 製造零件編號 BMEP586040
    HK$165,257.18
    Schneider Electric
    -
    Modicon M580
    -
    -
    -
    -
    Analog, Discrete
    -
    -
    -
    -
    -
    -
    -
    -
    -
    HK$1,867.50
    Schneider Electric
    -
    Zelio Logic Smart
    8
    Relay
    -
    24 V dc
    Analogue, Discrete
    -
    4
    -
    -
    -
    -
    Yes
    Green Premium
    -
    HK$6,088.70
    Mitsubishi Electric
    -
    FX3G
    14
    Relay
    -
    12 → 24 V dc
    Sink/Source
    -
    10
    -
    -
    -
    -
    -
    -
    -
    HK$3,473.20
    Crouzet
    -
    XD26
    16
    Relay
    XD26 Series
    24 V dc
    Analogue, Digital
    -
    10
    -
    -
    -
    -
    -
    -
    -
    HK$1,957.00
    Schneider Electric
    -
    Zelio Logic
    6
    Relay
    -
    24 V dc
    Analogue, Discrete
    -
    4
    24 V dc
    -
    -
    -
    Yes
    Green Premium
    -
    HK$1,893.80
    Schneider Electric
    -
    Zelio Logic
    8
    Relay
    -
    12 V dc
    Analogue, Discrete
    -
    4
    24 V dc
    -
    -
    -
    Yes
    Green Premium
    -
    HK$2,563.20
    Schneider Electric
    -
    Zelio Logic Smart
    12
    Relay
    -
    120 V ac, 240 V ac
    Discrete
    -
    8
    -
    -
    -
    -
    Yes
    Green Premium
    -
    HK$11,911.00
    Mitsubishi Electric
    -
    FX3U
    16
    Relay
    -
    100 → 240 V ac
    Sink/Source
    -
    16
    -
    -
    -
    -
    -
    -
    -
    HK$4,407.20
    Mitsubishi Electric
    -
    FX3S
    16
    Relay, Transistor
    FX3 Series
    -
    DC
    -
    14
    100 → 240 V ac
    Ethernet, ModBus
    -
    -
    -
    -
    -
    HK$2,279.60
    Crouzet
    -
    Millenium 3
    6
    Transistor
    -
    24 V dc
    Analogue, Digital
    -
    4
    -
    -
    -
    -
    -
    -
    -
    HK$1,965.90
    Siemens
    -
    SIMATIC S7-1200
    6 (Digital, 2 switch as Analogue)
    Digital, Relay
    SIMATIC S7-1200 Series
    24 V
    Analogue, Digital
    6
    4 (Digital Output, Relay Output)
    24 V dc
    Ethernet
    4
    Saves energy
    Yes
    -
    -
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