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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Description Prix For Use With Manufacturer Series Number of Inputs Number of Digital Inputs Output Type Input Type Number of Analogue Inputs Voltage Category Number of Digital Outputs Number of Analogue Outputs Interface Kit Included Number of Outputs Network Type
N° de stock RS 885-0954
Référence fabricantIS.MD57.base
474,92 €
Each
Unité
- M-Duino 18 - Analogue, Digital, Relay Analogue, Digital - 12 → 24 V dc - - - - 31 Ethernet, ModBus
N° de stock RS 742-4217
Référence fabricant88974142
MarqueCrouzet
180,51 €
Each
Unité
- Millenium 3 6 - Transistor Analogue, Digital - - - - - - 4 -
N° de stock RS 468-7500
Référence fabricant6AG1057-1AA02-0AA0
MarqueSiemens
195,50 €
Each
Unité
LOGO! 1, LOGO! 2, LOGO! 3, LOGO! 4, LOGO! 5, LOGO! 6, LOGO! 7, LOGO! 8, LOGO! 8.2 LOGO! - - Transistor Analogue, Digital - - - - - - - -
N° de stock RS 885-0894
Référence fabricant0660-0650
MarqueBARTH
147,28 €
Each
Unité
STG-650 Lococube mini-PLC 10 - Digital Analogue, Digital - - - - - - 9 CAN
N° de stock RS 917-6370
MarqueRS PRO
95,85 €
Each
Unité
- - 8 - Digital, Relay Analogue, Digital - - - - - - 4 ModBus
N° de stock RS 536-9001
Référence fabricant88970161
MarqueCrouzet
246,54 €
Each
Unité
- Millenium 3 16 - Relay Analogue, Digital - - - - - - 10 -
N° de stock RS 885-0910
Référence fabricant0850-0115
MarqueBARTH
211,86 €
Each
Unité
STG-115 Lococube mini-PLC 8 - Analogue Analogue, Digital - - - - - - 9 -
N° de stock RS 122-1525
Référence fabricant0850-0570
MarqueBARTH
94,16 €
Each
Unité
STG-570 Lococube mini-PLC 5 - Digital Analogue, Digital - - - - - - 5 CAN
N° de stock RS 614-9842
Référence fabricant88970045
MarqueCrouzet
146,29 €
Each
Unité
- Millenium 3 8 - Relay Analogue, Digital - - - - - - 4 -
N° de stock RS 746-6527
Référence fabricant6ES7314-6EH04-0AB0
MarqueSiemens
2.020,00 €
Each
Unité
- S7-300 4 Analogue), 28 (24 Digital - Analogue, Digital Analogue, Digital - 24 V dc - - - - 2 Analogue), 18 (16 Digital Ethernet, Profinet
N° de stock RS 801-5707
Référence fabricant2701483
751,91 €
Each
Unité
Nanoline Family of Controllers NLC-START-04 6 - PNP Analogue - 24 V dc - - - Yes 4 Ethernet
N° de stock RS 468-4494
Référence fabricantSR2B201FU
186,40 €
Each
Unité
- Zelio Logic 12 - Relay Discrete - - - - - - 8 -
N° de stock RS 821-1775
Référence fabricantCP1L-EM40DR-D
MarqueOmron
672,50 €
Each
Unité
CP Series CP1L-EM 24 - Relay DC - 20.4 → 26.4 V dc - - - - 16 Ethernet
N° de stock RS 401-589
Référence fabricantCP1L-L14DT1-D
MarqueOmron
351,10 €
Each
Unité
SYSMAC CP1L Series CP1L 8 (DC) - Transistor DC - 20.4 → 26.4 V dc - - - - 6 (Transistor) USB
N° de stock RS 123-2105
Référence fabricant0850-0580
MarqueBARTH
94,16 €
Each
Unité
STG-580 Lococube mini-PLC 5 - Digital, PWM, Solid-State Analogue, DC Digital - - - - - - 6 -
N° de stock RS 750-8624
Référence fabricant2080-LC30-24QWB
252,00 €
Each
Unité
Micro800 Series Micro830 14 - Relay Digital - 24 V ac/dc - - - Yes 10 ModBus
N° de stock RS 468-4438
Référence fabricantSR2B121BD
113,30 €
Each
Unité
- Zelio Logic 8 - Relay Analogue, Discrete - - - - - - 4 -
N° de stock RS 705-5818
Référence fabricantCP1E-N30DR-A
MarqueOmron
485,50 €
Each
Unité
CP1E Series CP1E 18 - Relay Pulse - 85 → 264 V ac - - - - 12 (Relay) USB
N° de stock RS 746-6520
Référence fabricant6ES7313-5BG04-0AB0
MarqueSiemens
1.024,50 €
Each
Unité
- S7-300 4 Analogue), 28 (24 Digital - Analogue, Digital Analogue, Digital - 24 V dc - - - - 2 Analogue), 18 (16 Digital -
N° de stock RS 742-4204
Référence fabricant88974084
MarqueCrouzet
298,37 €
Each
Unité
XD26 Series Millenium 3 16 - Relay Analogue, Digital - - - - - - - -