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

    8552 Products showing for PLCs, HMIs & Industrial Computing

    1 of 428
    Siemens S7-300 Series Mounting Rail for Use with SIMATIC S7-300 Modular Controller
    • RS Stock No. 746-6750
    • Mfr. Part No. 6ES7390-1AB60-0AA0
    Each
    TWD1,673.00
    Siemens SM 1223 Series PLC I/O Module for Use with SIMATIC S7-1200 Series, Digital, Digital, 24 V
    • RS Stock No. 787-7967
    • Mfr. Part No. 6ES7223-1BL32-0XB0
    Each
    TWD12,668.00
    BARTH lococube mini-PLC Series PLC I/O Module for Use with STG-600, 7 → 32 V dc Supply, PWM, Solid State Output,
    • RS Stock No. 864-4538
    • Mfr. Part No. 0850-0600
    Each
    TWD6,404.00
    Better World
    Siemens SIMATIC S7-1200 Series PLC CPU for Use with SIMATIC S7-1200 Series, Digital, Transistor Output, 14 (Digital, 2
    • RS Stock No. 862-4471
    • Mfr. Part No. 6ES7214-1AG40-0XB0
    Each
    TWD20,082.00
    Better World
    Schneider Electric Modicon M221 Series PLC CPU, Digital Output, 24-Input
    • RS Stock No. 806-6812
    • Mfr. Part No. TM221CE40T
    Each
    TWD19,174.00
    Hilscher netTAP 50 Series Gateway Server, CC-Link Slave/Master, Real Time Ethernet, 24 V DC
    • RS Stock No. 162-191
    • Mfr. Part No. NT 50-CC-EN
    Each
    TWD13,249.00
    Hilscher NetTap 100 Series Gateway Server, Real Time Ethernet, Real Time Ethernet, 24 V DC
    • RS Stock No. 162-175
    • Mfr. Part No. NT 100-RE-EN+ML
    Each
    TWD36,318.00
    Siemens Memory Card For Use With HMI C7-635, Mobile Panel 177, Mobile Panel 277, Mobile Panel 377, OP/TP 177B, OP/TP 277
    • RS Stock No. 746-5549
    • Mfr. Part No. 6AV6671-1CB00-0AX2
    Each
    TWD6,063.00
    Siemens S7-300 Series Mounting Rail for Use with SIMATIC S7-300 Series
    • RS Stock No. 453-2567
    • Mfr. Part No. 6ES7390-1AF30-0AA0
    Each
    TWD4,133.00
    Siemens SM 1231 Series PLC I/O Module for Use with SIMATIC S7-1200 Series, Analogue, Analogue, 24 V
    • RS Stock No. 787-7970
    • Mfr. Part No. 6ES7231-4HF32-0XB0
    Each
    TWD16,201.00
    Siemens SIMATIC S7-300 Series Series Front Connector for Use with Signal Module
    • RS Stock No. 226-3934
    • Mfr. Part No. 6ES7392-1AM00-1AB0
    Each (In a Pack of 100)
    TWD3,433.60
    Better World
    Siemens SIMATIC S7-1200 Series PLC CPU for Use with SIMATIC S7-1200 Series, 20.4 → 28.8 V dc Supply, Digital,
    • RS Stock No. 862-4496
    • Mfr. Part No. 6ES7215-1HG40-0XB0
    Each
    TWD29,338.00
    Mitsubishi Electric FX3G Series Logic Module, 12 → 24 V dc Supply, Relay Output, 8-Input, Sink, Source Input
    • RS Stock No. 705-4922
    • Mfr. Part No. FX3G-14MR/DS
    Each
    TWD17,243.00
    Better World
    Schneider Electric TM3 Series PLC I/O Module for Use with Modicon M221, Modicon M241, Modicon M251, DC, 24 V
    • RS Stock No. 806-6935
    • Mfr. Part No. TM3DI16
    Each
    TWD6,900.00
    Omron NX Series Communication Module for Use with NX Series CPU Unit, Analogue
    • RS Stock No. 136-2774
    • Mfr. Part No. NX1W-ADB21
    Each
    TWD6,340.00
    Siemens PLC Cable for Use with 6ES Series
    • RS Stock No. 468-5835
    • Mfr. Part No. 6ES7901-3DB30-0XA0
    Each
    TWD15,236.00
    Mitsubishi GT21 Series GOT2000 Touch Screen HMI - 3.8 in, LCD Display
    • RS Stock No. 860-9507
    • Mfr. Part No. GT2103-PMBDS
    Each
    TWD13,829.00
    Siemens SIMATIC Series Software for Use with SIMATIC
    • RS Stock No. 256-0211
    • Mfr. Part No. 6AV66131FA513CA0
    Each
    TWD270,027.00
    Siemens Display Module for Use with LOGO Series, 12 V
    • RS Stock No. 209-7110
    • Mfr. Part No. 6ED1055-4MH08-0BA1
    Each
    TWD8,113.00
    Better World
    Schneider Electric FC4A Series PLC I/O Module for Use with Modicon M221, Modicon M241, Modicon M251, Current, Voltage
    • RS Stock No. 806-7023
    • Mfr. Part No. TM3AI4
    Each
    TWD8,963.00
    Results per page
    1
    2
    3
    428

    Related links