Recently searched

    PLCs, HMIs & Industrial Computing

    The RS range of industrial computing solutions consists of a high quality selection of PLCs, HIMs and logic modules. We offer the components you need to revolutionise and enhance your process control and automation systems, with solutions tailored for use in a range of industries to provide control of electromechanical processes and building systems. Featuring expert brands like Siemens, Schneider Electric, Omron, and Mitsubishi.

    What are PLCs and how do they work?

    Programmable logic controllers (PLCs) are thought of as the digital brain of automated control systems. It is a solid state device that is able to receive input signals, process, analyse and transmit output data to control a large number of devices to apply logic to tasks to ensure they perform at optimum levels.

    What are HMIs?

    A Human Machine Interface (HMI) allows real-time process information to be presented to a human user, to be able to control and modify the process.

    What is a SCADA system?

    Supervisory control and data acquisition (SCADA), is the term used to describe a full industrial control system that uses a computer system to monitor and control a process. This is where PLCs and HMIs work together. A system will usually comprise:

    • A HMI - To present data to a human operator
    • Supervisory (computer) system - To gather data sending commands
    • Remote Terminal Units (RTUs) - To connect sensors
    • PLCs - To apply logic to devices in the process
    • Communication infrastructure - To provide connectivity

    What industries are both HMI and PLCs used in?

    All automated systems can rely on and benefit from process control devices. Some key industries they are used in are:

    • Food and beverage
    • Automobile
    • Manufacturing
    • Bottling

    How do you select a PLC?

    They're usually available as a fixed configuration or in modular format. The specific model required is highly dependent on the application, the software package, the environment it will be used in and networking capabilities. There are some key points to consider such as the number of input and output points. A simple rule to follow is the larger the systems, the larger the memory, programming, and communication capabilities.

    Condition Monitoring
    Condition Monitoring
    HMI Accessories
    HMI Accessories
    HMI Displays
    HMI Displays
    IPC Accessories
    IPC Accessories
    Industrial Computers
    Industrial Computers
    IoT Gateways
    IoT Gateways
    PLC Accessories
    PLC Accessories
    PLCs - Programmable Logic Controllers
    PLCs - Programmable Logic Controllers
    Safety Automation Controllers
    Safety Automation Controllers

    8401 Products showing for PLCs, HMIs & Industrial Computing

    1 of 421
    Better World
    Schneider Electric Zelio Logic 2 Series PLC CPU for Use with Zelio 2, 24 V Supply, Relay Output, 16 (Up → 16
    • RS Stock No. 468-4371
    • Mfr. Part No. SR3PACK2BD
    Each
    $806.10
    Mitsubishi Alpha 2 Series Logic Module, 100 → 240 V ac Supply, Relay Output, 8-Input, Digital Input
    • RS Stock No. 781-6893
    • Mfr. Part No. AL2-14MR-A
    Each
    $277.53
    Better World
    Schneider Electric Zelio Logic Smart Series Logic Module, 120 V ac, 240 V ac Supply, Relay Output, 6-Input, Discrete
    • RS Stock No. 468-4444
    Each
    $366.76
    Better World
    Schneider Electric Zelio Series PLC Cable for Use with Zelio Logic 2
    • RS Stock No. 615-2365
    • Mfr. Part No. SR2USB01
    Each
    $275.46
    Mitsubishi Electric FX3S Series PLC CPU for Use with FX3 Series, Relay Output, 6 (Sink/Source)-Input, Sink, Source Input
    • RS Stock No. 123-5959
    • Mfr. Part No. FX3S-10MR/DS
    Each
    $247.40
    RS PRO PLC Cable for Use with RS PRO PLCs, VGA Female, S Terminal
    • RS Stock No. 266-5056
    Each
    $20.87
    RS PRO Touch-Screen HMI Display - 7 in, TFT LCD Display, 800 x 480
    • RS Stock No. 276-5903
    Each
    $656.08
    Seeed Studio reComputer industrial, Industrial Computer, 25W, ARM Cortex 16 GB, 4
    • RS Stock No. 285-6822
    • Mfr. Part No. 110061441
    Each
    $437.76
    Better World
    Schneider Electric Zelio Logic Series Logic Module, 24 V dc Supply, Transistor Output, 8-Input, Analogue, Discrete Input
    • RS Stock No. 479-6064
    • Mfr. Part No. SR2B122BD
    Each
    $279.65
    Siemens SIMATIC HMI Unified Basic Series SIMATIC HMI Panel - 4.3 in, TFT Display, 800 x 480
    • RS Stock No. 113-897
    • Mfr. Part No. 6AV2123-3DB32-0AW0
    Each
    $1,041.43
    RS PRO Logic Module, 12 → 24 V dc Supply, Digital, Relay Output, 8-Input, Analogue, Digital Input
    • RS Stock No. 917-6377
    Each
    $253.26
    RS PRO USB Cable for Use with Logic Module
    • RS Stock No. 917-6395
    Each
    $51.44
    Better World
    Schneider Electric Zelio Logic 2 Series PLC CPU for Use with Zelio 2, Relay Output, 6 (Digital)-Input, Digital Input
    • RS Stock No. 468-4387
    • Mfr. Part No. SR3PACKFU
    Each
    $429.82
    Siemens SIMATIC ET 200SP Series Input Unit, Analogue, 24 V
    • RS Stock No. 203-4129
    • Mfr. Part No. 6ES7134-6GF00-0AA1
    Each
    $452.20
    Delta Electronics DOP Series HMI Touch Screen HMI - 3 in, TFT LCD Display, 480 x 272
    • RS Stock No. 241-1608
    • Mfr. Part No. DOP-103BQ
    Each
    $290.86
    Seeed Studio reComputer industrial, Industrial Computer, 25W, ARM Cortex 16 GB, 4
    • RS Stock No. 285-6821
    • Mfr. Part No. 110061362
    Each
    $343.01
    Mitsubishi Electric Alpha 2 Series Logic Module, 100 → 240 V ac Supply, Relay Output, 6-Input, Digital Input
    • RS Stock No. 354-297
    • Mfr. Part No. AL2-10MR-A
    Each
    $680.47
    Schneider Electric Wiser Gateway
    • RS Stock No. 272-7450
    • Mfr. Part No. CCT501801
    Each
    $154.03
    TECO Westinghouse SG2 Series Logic Module for Use with Industrial Automation, 100 → 240 V Supply, Relay Output
    • RS Stock No. 286-416
    • Mfr. Part No. JPSG2-8ER-A
    Each
    $87.30
    Siemens Protective Cover for use with Various HMIs
    • RS Stock No. 746-5331
    • Mfr. Part No. 6AV6574-1AE00-4AX0
    Each
    $464.32
    Results per page
    1
    2
    3
    421

    Related links