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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.

    1193 產品顯示為 PLCs - Programmable Logic Controllers

    HK$5,354.10
    Phoenix Contact
    -
    PLCnext AXC F
    2
    -
    PLCnext
    -
    -
    2
    -
    -
    Ethernet
    -
    -
    -
    -
    Ethernet
    • RS庫存編號 211-9064
    • 製造零件編號 6ES7317-2EK14-0AB0
    HK$77,707.70
    Siemens
    -
    SIMATIC S7-300
    -
    -
    SIMATIC S7-300 Series
    -
    -
    0
    -
    -
    Ethernet
    0
    -
    -
    -
    RJ-45
    • RS庫存編號 215-8169
    • 製造零件編號 CP2E-E60DR-A
    HK$7,971.50
    Omron
    -
    CP2E
    36
    -
    -
    -
    PNP/NPN
    36
    24
    -
    CompoBus/S
    -
    -
    -
    -
    -
    HK$28,390.70
    Mitsubishi Electric
    -
    FX3U
    64
    Relay
    -
    100 → 240 V ac
    Sink/Source
    -
    64
    -
    -
    -
    -
    -
    -
    -
    HK$24,097.50
    Schneider Electric
    -
    Modicon M340
    -
    -
    -
    24 V dc
    Analog, Discrete
    -
    -
    -
    -
    -
    -
    -
    -
    -
    HK$7,863.90
    Siemens
    -
    SIPLUS S7-1200 CPU 1212C
    10
    Transistor
    SIPLUS S7-1200
    28.8 V
    Analog
    8
    6
    24 V DC
    Profibus, Profinet, TCP/IP
    6
    -
    -
    -
    PROFINET
    Better World
    HK$7,191.90
    Siemens
    -
    SIMATIC S7-1200F
    16
    Relay
    SIMATIC S7-1200
    -
    Analog
    14
    10
    24 V DC
    Profibus, Profinet, Profisafe, TCP/IP
    10
    Saves energy
    Yes
    -
    PROFINET
    HK$3,265.50
    Crouzet
    -
    Millenium 3
    16
    Relay
    -
    -
    Analog, Digital
    16
    10
    -
    -
    -
    -
    -
    -
    -
    HK$46,095.20
    Siemens
    -
    SIMATIC S7-1500T
    20
    CPU
    SIMATIC S7-1500 Series
    -
    -
    20
    20
    24 V DC
    Ethernet, Profinet
    20
    -
    -
    -
    PROFINET
    HK$10,666.30
    Siemens
    -
    S55375
    16
    Relay Outputs, Universal Ouputs
    HVAC
    24 V ac/dc
    16
    -
    16
    -
    -
    -
    -
    -
    -
    Wireless
    HK$56,258.10
    Siemens
    -
    SIMATIC S7-1500
    3
    -
    SIMATIC S7-1500 Series
    24 V
    Digital
    -
    -
    -
    Ethernet, Profibus, Profinet
    -
    Concentrated or compact solution, Low carbon manufacture, Saves energy
    Yes
    -
    PROFINET
    Better World
    • RS庫存編號 806-6768
    • 製造零件編號 TM241CE40R
    HK$6,155.00
    Schneider Electric
    -
    Modicon M241
    24
    Relay
    -
    -
    -
    -
    16
    100 → 240 V
    -
    -
    -
    Yes
    Green Premium
    -
    HK$4,765.40
    Siemens
    -
    SIMATIC S7-1500
    16
    Encoder
    SIMATIC S7-1500 Series
    24 V dc
    Digital
    16
    16
    24 V
    Profibus, Profinet
    -
    Saves energy
    Yes
    -
    -
    HK$5,313.60
    Industrial Shields
    -
    ESP32
    37
    Analogue, Digital
    -
    12 → 24 V dc
    Analog, Digital
    -
    -
    -
    -
    -
    -
    -
    -
    -
    HK$3,625.10
    Crouzet
    -
    Millenium 3
    16
    Relay
    XD26 Series
    24 V dc
    Analogue, Digital
    -
    -
    -
    -
    -
    -
    -
    -
    -
    HK$1,841.60
    Crouzet
    -
    Millenium 3
    6
    Relay
    -
    24 V dc
    Analogue, Digital
    -
    4
    -
    -
    -
    -
    -
    -
    -
    HK$45,827.40
    Siemens
    -
    S7-300
    28 (24 Digital, 4 Analogue)
    Analogue, Digital
    SIMATIC S7-300 Series
    24 V
    Analogue, Digital
    24
    18 (16 Digital, 2 Analogue)
    24 V dc
    Ethernet, Profinet
    16
    -
    -
    -
    Ethernet, PROFINET, RS 485
    HK$1,088.10
    Crouzet
    -
    Millenium 3
    8
    Relay
    Millenium 3 Series
    24 V dc
    Digital
    -
    6
    -
    -
    -
    -
    -
    -
    -
    HK$950.20
    Crouzet
    -
    Millenium 3
    4
    Relay
    Millenium 3 Series
    24 V dc
    Digital
    -
    2
    -
    -
    -
    -
    -
    -
    -
    HK$5,233.30
    Siemens
    -
    SIMATIC S7-1200
    14 (Digital, 2 switch as Analogue)
    Digital, Relay
    SIMATIC S7-1200 Series
    20.4 → 28.8 V dc
    Analogue, Digital
    14
    10 (Digital Output, Relay Output)
    24 V dc
    Ethernet
    10
    Saves energy
    Yes
    -
    PROFINET
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