PLCs - Programmable Logic Controllers

A PLC (programmable logic controller) is an industrial digital computer designed for the control of manufacturing processes or robotic devices 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 microprocessor-based and act as the electronic circuitry within an industrial computer. They carry out instructions from the computer program, performing basic mathematical, logical, control, input and output operations.

What are PLCs used for?

PLC controllers are important for the correct functioning of machinery in manufacturing and industry. They are used in the automation of electromechanical processes, including control of machinery on assembly lines, amusement rides, or lighting fixtures. PLCs are ideal for applications that require constant monitoring of input devices whilst allowing decisions to be made via a custom program. This ultimately enables it to control an output.

Types of PLCs

Programmable logic controllers are divided into small, medium and large modular categories. Small control systems are robust, compact and mountable on top of or beside the equipment to be controlled. Medium controllers mainly use rack mounting or backplane systems, allowing for simple upgrading via additional function cards. Large systems are necessary for applications where complex control functions are executed, usually in large plants, in machinery requiring constant monitoring, or control of other PLC hardware.

What setups are suitable for programmable logic controllers?

PLCs feature a modular design, making them suitable for use in a wide range of applications. Due to the modular aspect, PLCs can be plugged into numerous setups making them highly versatile.


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Omschrijving Prijs For Use With Manufacturer Series Number of Digital Inputs Number of Inputs Input Type Number of Analogue Inputs Number of Digital Outputs Voltage Category Number of Analogue Outputs Output Type Interface Kit Included Number of Outputs Network Type
RS-stocknr. 862-4455
Fabrikantnummer6ES7211-1BE40-0XB0
FabrikantSiemens
177,00 €
Each
Aantal stuks
SIMATIC S7-1200 Series S7-1200 - 6 (Digital Input, 2 switch as Analogue Input) Analogue, Digital - - 85 → 264 V ac - Digital, Relay - - 4 (Digital Output, Relay Output) Ethernet
RS-stocknr. 825-1672
Fabrikantnummer6ED1055-1CB10-0BA2
FabrikantSiemens
101,00 €
Each
Aantal stuks
LOGO! 8, LOGO! 8.2 LOGO! - 8 Digital - - - - Digital - - 8 -
RS-stocknr. 479-8082
FabrikantnummerSR2E121BD
95,20 €
Each
Aantal stuks
- Zelio Logic - 8 Analogue, Discrete - - - - Relay - - 4 -
RS-stocknr. 746-6523
Fabrikantnummer6ES7314-6CH04-0AB0
FabrikantSiemens
1.881,57 €
Each
Aantal stuks
- S7-300 - 28 (24 Digital, 4 Analogue) Analogue, Digital - - 24 V dc - Analogue, Digital - - 18 (16 Digital, 2 Analogue) -
RS-stocknr. 536-8890
Fabrikantnummer88970041
FabrikantCrouzet
135,94 €
Each
Aantal stuks
- Millenium 3 - 8 Analogue, Digital - - - - Relay - - 4 -
RS-stocknr. 885-0941
FabrikantnummerIS.MD19.base
301,16 €
Each
Aantal stuks
- M-Duino - 6 Analogue, Digital - - 12 → 24 V dc - Analogue, Digital, Relay - - 11 Ethernet, ModBus
RS-stocknr. 885-0907
Fabrikantnummer0850-0095
FabrikantBARTH
178,69 €
Each
Aantal stuks
STG-95 lococube mini-PLC - 8 Analogue, Digital - - - - Analogue - - 8 -
RS-stocknr. 705-5805
FabrikantnummerCP1E-E30DR-A
FabrikantOmron
370,50 €
Each
Aantal stuks
CP1E Series CP1E - 18 Pulse - - 85 → 264 V ac - Relay - - 12 (Relay) -
RS-stocknr. 528-8643
FabrikantnummerTWDLCAE40DRF
930,71 €
Each
Aantal stuks
- Twido - 24 Sink, Source - - - - Relay, Transistor - - 16 Ethernet
RS-stocknr. 123-2107
Fabrikantnummer0850-0700
FabrikantBARTH
138,03 €
Each
Aantal stuks
STG-700 lococube mini-PLC - 4 Analogue, DC Digital - - - - Digital, Power Stepper Motor, Solid-State - - 6 -
RS-stocknr. 885-0897
Fabrikantnummer0850-0650
FabrikantBARTH
113,73 €
Each
Aantal stuks
STG-650 lococube mini-PLC - 10 Analogue, Digital - - - - Digital - - 9 CAN
RS-stocknr. 124-4307
Fabrikantnummer0850-0560
FabrikantBARTH
85,60 €
Each
Aantal stuks
STG-560 lococube mini-PLC - 5 Analogue, Digital - - - - Digital, PWM, Solid State - - 5 CANOpen
RS-stocknr. 704-8333
Fabrikantnummer88974161
FabrikantCrouzet
294,28 €
Each
Aantal stuks
XD26 Series XD26 - 16 Analogue, Digital - - - - Relay - - 10 -
RS-stocknr. 123-2106
Fabrikantnummer0850-0680
FabrikantBARTH
127,33 €
Each
Aantal stuks
STG-680 lococube mini-PLC - 10 Analogue, DC Digital - - - - Digital, PWM, Solid-State - - 10 -
RS-stocknr. 211-411
Fabrikantnummer6ES7313-6BG04-0AB0
FabrikantSiemens
1.080,00 €
Each
Aantal stuks
SIMATIC S7-300 Series S7-300 - 16 (Digital) Digital - - 20.4 → 28.8 V dc - Digital - - 16 (Digital) -
RS-stocknr. 536-8913
Fabrikantnummer88970042
FabrikantCrouzet
139,88 €
Each
Aantal stuks
- Millenium 3 - 8 Analogue, Digital - - - - Transistor - - 4 -
RS-stocknr. 825-1675
Fabrikantnummer6ED1055-1FB00-0BA2
FabrikantSiemens
67,00 €
Each
Aantal stuks
LOGO! 8, LOGO! 8.2 LOGO! - 4 Digital - - - - Relay - - 4 -
RS-stocknr. 442-0802
FabrikantnummerAL2-24MR-D
FabrikantMitsubishi
244,40 €
Each
Aantal stuks
- Alpha 2 - 15 Digital - - - - Relay - - 9 -
RS-stocknr. 123-7006
Fabrikantnummer88981136
FabrikantCrouzet
478,38 €
Each
Aantal stuks
- em4 - 12 (Digital/Analogue), 4 (Digital) Analogue, Digital - - 24 V dc - PWM, Relay - - 2 (PWM), 8 (Relay) -
RS-stocknr. 468-4292
FabrikantnummerSR3XT141BD
81,30 €
Each
Aantal stuks
Zelio Logic Modules Zelio Logic - 8 Discrete - - - - Relay - - 6 -