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. 862-4480
Fabrikantnummer6ES7214-1HG40-0XB0
FabrikantSiemens
360,00 €
Each
Aantal stuks
SIMATIC S7-1200 Series S7-1200 - 14 (Digital Input, 2 switch as Analogue Input) Analogue, Digital - - 24 V dc - Digital, Relay - - 10 (Digital Output, Relay Output) Ethernet
RS-stocknr. 825-1679
Fabrikantnummer6ED1055-1FB10-0BA2
FabrikantSiemens
109,00 €
Each
Aantal stuks
LOGO! 8, LOGO! 8.2 LOGO! - 8 Digital - - - - Relay - - 8 -
RS-stocknr. 468-4242
FabrikantnummerSR3B261BD
221,60 €
Each
Aantal stuks
- Zelio Logic - 16 Analogue, Discrete - - - - Relay - - 10 -
RS-stocknr. 862-4496
Fabrikantnummer6ES7215-1HG40-0XB0
FabrikantSiemens
542,00 €
Each
Aantal stuks
SIMATIC S7-1200 Series S7-1200 - 14 (Digital Input, 2 switch as Analogue Input) Analogue, Digital - - 24 V dc - Digital, Relay - - 10 (Digital Output, Relay Output) Ethernet
RS-stocknr. 825-1681
Fabrikantnummer6ED1055-1MB00-0BA2
FabrikantSiemens
67,00 €
Each
Aantal stuks
LOGO! 8, LOGO! 8.2 LOGO! - 4 Digital - - - - Relay - - 4 -
RS-stocknr. 862-4459
Fabrikantnummer6ES7211-1AE40-0XB0
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, Transistor - - 4 (Digital Output, Transistor Output) Ethernet
RS-stocknr. 825-1697
Fabrikantnummer6ED1055-1MD00-0BA2
FabrikantSiemens
99,00 €
Each
Aantal stuks
LOGO! 8, LOGO! 8.2 LOGO! - 2 Analogue Pt100/1000 - - - - - - - - -
RS-stocknr. 825-1694
Fabrikantnummer6ED1055-1MA00-0BA2
FabrikantSiemens
82,00 €
Each
Aantal stuks
LOGO! 8, LOGO! 8.2 LOGO! - 2 Analogue - - - - - - - - -
RS-stocknr. 862-4465
Fabrikantnummer6ES7212-1AE40-0XB0
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, Transistor - - 6 (Digital Output, Transistor Output) Ethernet
RS-stocknr. 124-4308
Fabrikantnummer0850-0660
FabrikantBARTH
112,35 €
Each
Aantal stuks
STG-660 lococube mini-PLC - 10 Analogue, Digital - - - - Digital, PWM, Solid State - - 9 CANOpen
RS-stocknr. 862-4483
Fabrikantnummer6ES7215-1BG40-0XB0
FabrikantSiemens
542,00 €
Each
Aantal stuks
SIMATIC S7-1200 Series S7-1200 - 14 (Digital Input, 2 switch as Analogue Input) Analogue, Digital - - 85 → 264 V ac - Digital, Relay - - 10 (Digital Output, Relay Output) Ethernet
RS-stocknr. 825-1691
Fabrikantnummer6ED1055-1MM00-0BA2
FabrikantSiemens
117,00 €
Each
Aantal stuks
LOGO! 8, LOGO! 8.2 LOGO! - - - - - - - Analogue - - 2 -
RS-stocknr. 872-6321
Fabrikantnummer6AV2132-3GB00-0AA1
FabrikantSiemens
699,00 €
Each
Aantal stuks
LOGO! 8, LOGO! 8.2 LOGO! - - Digital - - - - Relay - - 4 Ethernet
RS-stocknr. 825-1688
Fabrikantnummer6ED1055-1HB00-0BA2
FabrikantSiemens
67,00 €
Each
Aantal stuks
LOGO! 8, LOGO! 8.2 LOGO! - 4 Digital - - - - Relay - - 4 -
RS-stocknr. 885-0926
FabrikantnummerIS.MD21.base
227,14 €
Each
Aantal stuks
- M-Duino - 13 Analogue, Digital - - 12 → 24 V dc - Analogue, Digital - - 8 Ethernet, ModBus
RS-stocknr. 806-6812
FabrikantnummerTM221CE40T
340,44 €
Each
Aantal stuks
- Modicon M221 - - - - - - - Digital - Yes - Ethernet, ModBus, Profibus DP, USB
RS-stocknr. 864-4535
Fabrikantnummer0850-0500
FabrikantBARTH
85,60 €
Each
Aantal stuks
STG-115 lococube mini-PLC - 5 Analogue, Digital - - - - PWM, Solid State - - 5 -
RS-stocknr. 536-9102
Fabrikantnummer88970231
FabrikantCrouzet
92,19 €
Each
Aantal stuks
Millenium 3 Series Millenium 3 - 8 Digital - - - - Relay - - 6 -
RS-stocknr. 862-4477
Fabrikantnummer6ES7214-1BG40-0XB0
FabrikantSiemens
360,00 €
Each
Aantal stuks
SIMATIC S7-1200 Series S7-1200 - 14 (Digital Input, 2 switch as Analogue Input) Analogue, Digital - - 85 → 264 V ac - Digital, Relay - - 10 (Digital Output, Relay Output) Ethernet
RS-stocknr. 862-4487
Fabrikantnummer6ES7215-1AG40-0XB0
FabrikantSiemens
542,00 €
Each
Aantal stuks
SIMATIC S7-1200 Series S7-1200 - 14 (Digital Input, 2 switch as Analogue Input) Analogue, Digital - - 24 V dc - Digital, Transistor - - 10 (Digital Output, Transistor Output) Ethernet