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. 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. 862-4474
Fabrikantnummer6ES7212-1HE40-0XB0
FabrikantSiemens
238,00 €
Each
Aantal stuks
SIMATIC S7-1200 Series S7-1200 - 8 (Digital Input, 2 switch as Analogue Input) Analogue, Digital - - 24 V dc - Digital, Relay - - 6 (Digital Output, Relay Output) Ethernet
RS-stocknr. 872-6319
Fabrikantnummer6AV2132-0HA00-0AA1
FabrikantSiemens
299,00 €
Each
Aantal stuks
LOGO! 8, LOGO! 8.2 LOGO! - - Digital - - - - Relay - - 4 Ethernet
RS-stocknr. 468-7500
Fabrikantnummer6AG1057-1AA02-0AA0
FabrikantSiemens
195,50 €
Each
Aantal stuks
LOGO! 1, LOGO! 2, LOGO! 3, LOGO! 4, LOGO! 5, LOGO! 6, LOGO! 7, LOGO! 8, LOGO! 8.2 LOGO! - - Analogue, Digital - - - - Transistor - - - -
RS-stocknr. 885-0910
Fabrikantnummer0850-0115
FabrikantBARTH
211,86 €
Each
Aantal stuks
STG-115 lococube mini-PLC - 8 Analogue, Digital - - - - Analogue - - 9 -
RS-stocknr. 444-4460
FabrikantnummerTWDLMDA40DTK
493,30 €
Each
Aantal stuks
- Twido - - - - - - - Analogue, Transistor - - 16 DeviceNet
RS-stocknr. 536-9001
Fabrikantnummer88970161
FabrikantCrouzet
246,54 €
Each
Aantal stuks
- Millenium 3 - 16 Analogue, Digital - - - - Relay - - 10 -
RS-stocknr. 862-4468
Fabrikantnummer6ES7211-1HE40-0XB0
FabrikantSiemens
177,00 €
Each
Aantal stuks
SIMATIC S7-1200 Series S7-1200 - 6 (Digital Input, 2 switch as Analogue Input) Analogue, Digital - - 24 V dc - Digital, Relay - - 4 (Digital Output, Relay Output) Ethernet
RS-stocknr. 885-0954
FabrikantnummerIS.MD57.base
470,22 €
Each
Aantal stuks
- M-Duino - 18 Analogue, Digital - - 12 → 24 V dc - Analogue, Digital, Relay - - 31 Ethernet, ModBus
RS-stocknr. 742-4185
Fabrikantnummer88974054
FabrikantCrouzet
223,26 €
Each
Aantal stuks
- Millenium 3 - 12 Digital - - - - Relay - - 8 -
RS-stocknr. 742-4217
Fabrikantnummer88974142
FabrikantCrouzet
180,51 €
Each
Aantal stuks
- Millenium 3 - 6 Analogue, Digital - - - - Transistor - - 4 -
RS-stocknr. 536-9023
Fabrikantnummer88970162
FabrikantCrouzet
247,41 €
Each
Aantal stuks
- Millenium 3 - 16 Analogue, Digital - - - - Transistor - - 10 -
RS-stocknr. 885-0894
Fabrikantnummer0660-0650
FabrikantBARTH
145,10 €
Each
Aantal stuks
STG-650 lococube mini-PLC - 10 Analogue, Digital - - - - Digital - - 9 CAN
RS-stocknr. 821-1775
FabrikantnummerCP1L-EM40DR-D
FabrikantOmron
672,50 €
Each
Aantal stuks
CP Series CP1L-EM - 24 DC - - 20.4 → 26.4 V dc - Relay - - 16 Ethernet
RS-stocknr. 468-4438
FabrikantnummerSR2B121BD
113,30 €
Each
Aantal stuks
- Zelio Logic - 8 Analogue, Discrete - - - - Relay - - 4 -
RS-stocknr. 468-4494
FabrikantnummerSR2B201FU
186,40 €
Each
Aantal stuks
- Zelio Logic - 12 Discrete - - - - Relay - - 8 -
RS-stocknr. 614-9842
Fabrikantnummer88970045
FabrikantCrouzet
146,29 €
Each
Aantal stuks
- Millenium 3 - 8 Analogue, Digital - - - - Relay - - 4 -
RS-stocknr. 705-5818
FabrikantnummerCP1E-N30DR-A
FabrikantOmron
485,50 €
Each
Aantal stuks
CP1E Series CP1E - 18 Pulse - - 85 → 264 V ac - Relay - - 12 (Relay) USB
RS-stocknr. 746-6527
Fabrikantnummer6ES7314-6EH04-0AB0
FabrikantSiemens
2.020,00 €
Each
Aantal stuks
- S7-300 - 28 (24 Digital, 4 Analogue) Analogue, Digital - - 24 V dc - Analogue, Digital - - 18 (16 Digital, 2 Analogue) Ethernet, Profinet