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PLCs, HMI & Data Acquisition

A PLC (programmable logic controller) is an industrial digital computer designed for the control and automation of manufacturing processes or robotic devices. Programmable Logic Controllers are used where reliability control, simple programming and fault diagnosis is necessary. They were originally built to replace electromechanical relay systems in industrial automation.A CPU (central processing unit) forms part of the PLC system. PLC CPUs are a microprocessor-based control system and act as the electronic circuitry within an industrial computer. They are usually built-in carry out instructions from the computer program via programming languages, performing basic mathematical, logical, control, input and output operations.PLC ApplicationsPLC controllers are incredibly useful and have many applications across several industries such as manufacturing, food & beverage, and building control. PLC’s control the automation process in the machinery used for:Production plantsTraffic light controlsPackaging machinesLifts and escalatorsMedical applicationsAutomatic gate systemsHeating control systemsHow do PLC’s work?PLC Controller’s respond to inputs from programming software and give a desired output. Programmable Logic Controllers can also include human-machine interfaces.Different models use varying PLC Programs based on the programming languages used in the software. Programming languages that are used in PLC programming include:ST: Structured Text (text-based)FBD: Function Block Diagram (graphic-based)LAD: Ladder logic (graphic-based)STL: Statement List (text-based)SCL: Structured Control Language (graphic-based)PLC programming can be quite complex but there are simpler, image-based options available such as Ladder Logic that has user-friendly Ladder diagrams to understand and improve processes. Laptop and software are usually used for Ladder Logic and Ladder Diagrams, however, some older models use handheld controllers.Types of PLC’sProgrammable Logic Controllers can be categorised in multiple ways, each with different functions, features and capabilities. For example, Soft PLC’s are software based and use their own operating system but do not have their own CPU. Whereas, Hard PLC’s are hardware based and typically only include the essential control functions. The full range of programmable controllers include:Hard PLC’sSoft PLC’sCompact PLC’sSlot PLC’sUnitary PLC’sModular PLC’sProgrammable Controllers can also be made more efficient by using equipment such as, HMI displays, DIN Rails, and Communication modules (such as MODBUS) which can be enhanced into a highly functional automated control system with PLC accessories. More information can be found our complete PLCs guide

Showing 1–24 of 332 results

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  • Product image for BARTH Bracket for use with locoube® mini-PLC

    BARTH - Bracket for use with locoube® mini-PLC, HA-30

    RS Stock No.
    2012839
    Brand
    BARTH
    Mfr. Prt No.
    0007-0030
    VND
    164,790.56

  • BARTH - Cable for use with STG-550/560/650/660 Mini PLC, VK-16

    VND
    0.00
  • Product image for CONNECTION CABLE VK-16 USB

    BARTH - Cable for use with STG-550/560/650/660 Mini PLC, VK-16

    RS Stock No.
    1221523
    Brand
    BARTH
    Mfr. Prt No.
    0091-0016
    VND
    1,808,283.84
  • Product image for HMI, TOUCH, CAN DISPLAY, DMA-15

    BARTH DMA-15 Series CAN Touch Touch Screen HMI - 2.4 in, TFT Display, 240 x 320pixels

    RS Stock No.
    1745641
    Brand
    BARTH
    Mfr. Prt No.
    0044-0015
    VND
    8,848,428.16
  • Product image for LOGIC CONTROLLER STG-650 CAN

    BARTH lococube mini-PLC PLC I/O Module - 10 Inputs, 9 Outputs, Digital, For Use With STG-650, CAN Networking, USB

    RS Stock No.
    8850897
    Brand
    BARTH
    Mfr. Prt No.
    0850-0650
    VND
    5,228,982.88

  • BARTH lococube mini-PLC PLC I/O Module - 5 Inputs, 9 Outputs, Digital, PWM, Solid State, For Use With STG-800, CANOpen

    VND
    0.00
  • Product image for LOGIC CONTROLLER STG-800

    BARTH lococube mini-PLC PLC I/O Module - 5 Inputs, 9 Outputs, Digital, PWM, Solid State, For Use With STG-800, CANOpen

    RS Stock No.
    1348863
    Brand
    BARTH
    Mfr. Prt No.
    0850-0800
    VND
    5,551,465.92
  • Product image for DIN RAIL MOUNTING KIT ES-357

    Brainboxes - Mounting Kit for use with ES-357

    RS Stock No.
    6883340
    Brand
    Brainboxes
    Mfr. Prt No.
    MK-048
    VND
    185,892.96

  • Carel Communication Module for use with Easy Compact Series, Easy Series, Easy Split, IR33

    RS Stock No.
    7458005
    Brand
    Carel
    Mfr. Prt No.
    IROPZ485S0
    VND
    2,185,824.96
  • Product image for CP1L Module,12x24VDC i/p,8xPNP o/p

    CP1L MODULE,12X24VDC I/P,8XPNP O/P

    RS Stock No.
    0401488
    Brand
    Omron
    VND
    12,295,792.96
  • Product image for MOD POWER SUPPLY 60W, 24 VDC, 2.5 A

    Crouzet - PLC Power Supply for use with Designed for a wide range of industrial and building applications, 54 x 91 x

    RS Stock No.
    1974296
    Brand
    Crouzet
    Mfr. Prt No.
    89451006
    VND
    2,321,455.84
  • Product image for CTN PROBE STAINLESS FOR MILLENIUM 3

    Crouzet - Probe for use with Millenium III Series

    RS Stock No.
    6832323
    Brand
    Crouzet
    Mfr. Prt No.
    89750182
    VND
    1,189,791.68
  • Product image for em4 cable,MTP6/50&8/50,modbus interface

    Crouzet - USB Cable, em4, Programmable Touch Panel MTP6/50, Programmable Touch Panel MTP8/50

    RS Stock No.
    1237007
    Brand
    Crouzet
    Mfr. Prt No.
    88980171
    VND
    1,647,713.76
  • Product image for M3 4 I/0 extension, 24Vdc input

    Crouzet Millenium 3 I/O module - 2 Inputs, 2 Outputs, Analogue, For Use With Millenium 3 Series

    RS Stock No.
    5369146
    Brand
    Crouzet
    Mfr. Prt No.
    88970241
    VND
    6,373,500.32
  • Product image for M3 14 I/0 extension, 24Vdc input

    Crouzet Millenium 3 I/O module - 8 Inputs, 6 Outputs, Relay, For Use With Millenium 3 Series

    RS Stock No.
    5369102
    Brand
    Crouzet
    Mfr. Prt No.
    88970231
    VND
    3,703,087.52
  • Product image for MILLENIUM 3 SMART STARTER KIT XD26 24V

    Crouzet Millenium 3 Logic Control - 16 Inputs, Relay, For Use With XD26 Series, Front Panel Interface

    RS Stock No.
    7424204
    Brand
    Crouzet
    Mfr. Prt No.
    88974084
    VND
    12,326,679.20
  • Product image for M3 controller, 20 I/O relay O/P 24Vdc

    Crouzet Millenium 3 Logic Module - 12 Inputs, 8 Outputs, Relay

    RS Stock No.
    5368929
    Brand
    Crouzet
    Mfr. Prt No.
    88970051
    VND
    8,239,719.84
  • Product image for M3 controller, 26 I/O relay O/P 24Vdc

    Crouzet Millenium 3 Logic Module - 16 Inputs, 10 Outputs, Relay

    RS Stock No.
    5369001
    Brand
    Crouzet
    Mfr. Prt No.
    88970161
    VND
    9,426,825.76
  • Product image for Logic Module M3 CUSTOM XD26 R 24VDC

    Crouzet XD26 Logic Control - 16 Inputs, 10 Outputs, Relay, For Use With XD26 Series

    RS Stock No.
    7048333
    Brand
    Crouzet
    Mfr. Prt No.
    88974161
    VND
    11,458,027.68
  • Product image for PLC, 16 Dig Inputs, 8 Rly Outputs, RS485

    Crouzet XDP24 PLC CPU - 16 (Digital) Inputs, 8 Outputs, Relay, For Use With PLC, RJ45, SMTP, SSL, TCP, UDP, USB

    RS Stock No.
    1752517
    Brand
    Crouzet
    Mfr. Prt No.
    88975101
    VND
    9,884,364.16