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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 25–48 of 332 results

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  • Mitsubishi - Bus Coupler for use with FX5U CPU Module, FX5UC CPU Module, 16 x 90 x 83 mm, Current, Voltage, FX5, 5 V dc

    VND
    0.00
  • 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 FX5U BUS CONVERSION MODULE FOR FX3

    Mitsubishi - Bus Coupler for use with FX5U CPU Module, FX5UC CPU Module, 16 x 90 x 83 mm, Current, Voltage, FX5, 5 V dc

    RS Stock No.
    8755745
    Brand
    Mitsubishi
    Mfr. Prt No.
    FX5-CNV-BUS
    VND
    1,662,101.76
  • Product image for V8-OUTPUT ADAPTER EIGHT PLC INTERFACES

    Phoenix Contact - Adapter for use with PLC Interface

    RS Stock No.
    8037237
    Brand
    Phoenix Contact
    Mfr. Prt No.
    2295554
    VND
    1,677,065.28
  • Product image for Expansion Module 8I/4O 12-24Vdc

    RS PRO I/O module - 8 Inputs, 4 Outputs, Digital, Relay, For Use With RS PRO Logic Modules, ModBus Networking, Computer

    RS Stock No.
    9176389
    Brand
    RS PRO
    VND
    1,703,155.52
  • 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 Modular i/o expansion module,SR3XT61BD

    Schneider Electric Zelio Logic I/O module - 4 Inputs, 2 Outputs, Relay, For Use With Zelio Logic Modules

    RS Stock No.
    4684264
    Brand
    Schneider Electric
    Mfr. Prt No.
    SR3XT61BD
    VND
    1,820,369.76
  • Product image for S7-300 PLC to HMI connection cable,5m L

    Siemens - Cable for use with 6ES Series

    RS Stock No.
    4532731
    Brand
    Siemens
    Mfr. Prt No.
    6ES7901-1BF00-0XA0
    VND
    0.00
  • Product image for S7-300 PLC front panel connector,20 pin

    Siemens - Connector for use with CP 343-2, CP 343-2P, SIMATIC S7 Series

    RS Stock No.
    4532573
    Brand
    Siemens
    Mfr. Prt No.
    6ES7392-1AJ00-0AA0
    VND
    1,899,024.16
  • Product image for SIMATIC NET IE FC M12 PLUG PRO

    Siemens 6GK1901-0DB20-6AA0 Data Acquisition Connector for ET 200eco Series

    RS Stock No.
    6665259
    Brand
    Siemens
    Mfr. Prt No.
    6GK1901-0DB20-6AA0
    VND
    1,921,661.28

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

    VND
    0.00
  • Product image for SIMATIC DP, 5 ELECTRON. MODULES

    Siemens - PLC I/O Module for use with SIMATIC ET 200S Series, 81 x 15 x 52 mm, Digital, 6ES7, 24 V dc, SIMATIC

    RS Stock No.
    6623498
    Brand
    Siemens
    Mfr. Prt No.
    6ES7131-4BD01-0AB0
    VND
    2,039,259.20
  • Product image for SIMATIC S7-300, FRONT CONNECTOR,40 PIN

    Siemens - Connector for use with SIMATIC S7-300 SM 331 Analog Input Module

    RS Stock No.
    7466794
    Brand
    Siemens
    Mfr. Prt No.
    6ES7392-1BM01-0AA0
    VND
    2,062,471.84
  • Product image for FIELDBUS CONNECTOR PROFIBUS WITH INTEGRA

    Wago - Connector for use with Profibus

    RS Stock No.
    5083987
    Brand
    Wago
    Mfr. Prt No.
    750960
    VND
    2,082,039.52
  • Product image for CABLE FOR MITSUBISHI PLC FX SERIES

    Pro-face PLC connection cable 5m For Use With HMI GP 4000 Series, PLC Mitsubishi PLC

    RS Stock No.
    1444990
    Brand
    Pro-face
    Mfr. Prt No.
    PFXZC9CBFX51
    VND
    2,103,141.92
  • Product image for SIMATIC IOT2000 Input/Output Module

    Siemens - PLC I/O Module, Analogue, Digital, Analogue, Digital, 6ES7155, 28.8 V dc, SIMATIC

    RS Stock No.
    1354133
    Brand
    Siemens
    Mfr. Prt No.
    6ES7647-0KA01-0AA2
    VND
    2,152,252.96

  • 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 Logic Module w/o Display 8I/4O 110-240V

    RS PRO Logic Module - 8 Inputs, 4 Outputs, Digital, Relay, ModBus Networking, Computer Interface

    RS Stock No.
    9176373
    Brand
    RS PRO
    VND
    2,271,769.28
  • Product image for FUJITSU CONNECTOR, 24 PIN, SOLDER TYPE

    Omron - PLC I/O Module for use with Omron CJ1W-OC/OA/OD, IB IL RS UNI-PAC

    RS Stock No.
    8184210
    Brand
    Omron
    Mfr. Prt No.
    C500CE241
    VND
    2,276,181.60
  • Product image for MEMORY UNIT

    Omron ZEN Memory Module, For Use With ZEN Series

    RS Stock No.
    4594975
    Brand
    Omron
    Mfr. Prt No.
    ZENME01
    VND
    2,277,140.80
  • Product image for FIELDBUS CONNECTOR CANOPEN

    Wago - Connector for use with CANOpen

    RS Stock No.
    5083993
    Brand
    Wago
    Mfr. Prt No.
    750963
    VND
    2,287,883.84