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.

Types of PLCs

Programmable logic controllers are divided into small, medium and large 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.


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Beskrivning Pris 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-artikelnummer 917-6370
VarumärkeRS PRO
1 025,31 kr
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- - - 8 Analogue, Digital - - - - Digital, Relay - - 4 ModBus
RS-artikelnummer 917-6373
VarumärkeRS PRO
879,62 kr
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- - - 8 Digital - - - - Digital, Relay - - 4 ModBus
RS-artikelnummer 917-6392
VarumärkeRS PRO
426,84 kr
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RS PRO Logic Modules - - 1 TTL Level - - - - RS485 Protocol (D-), RS485 Protocol (D+), RS485 Protocol (Two Wires) - - 1 ModBus
RS-artikelnummer 917-6386
VarumärkeRS PRO
533,34 kr
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RS PRO Logic Modules - - 8 Digital - - - - Digital, Relay - - 4 ModBus
RS-artikelnummer 917-6399
VarumärkeRS PRO
146,52 kr
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RS PRO Logic Modules - - - - - - - - - - - - -
RS-artikelnummer 917-6377
VarumärkeRS PRO
895,75 kr
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- - - 8 Analogue, Digital - - - - Digital, Relay - - 4 ModBus
RS-artikelnummer 917-6361
VarumärkeRS PRO
1 018,28 kr
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- - - 8 Digital - - - - Digital, Relay - - 4 ModBus
RS-artikelnummer 917-6389
VarumärkeRS PRO
542,44 kr
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RS PRO Logic Modules - - 8 Digital - - - - Digital, Relay - - 4 ModBus
RS-artikelnummer 917-6383
VarumärkeRS PRO
407,50 kr
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RS PRO Logic Modules - - 1 TTL Level - - - - RS485 Protocol (D-), RS485 Protocol (D+), RS485 Protocol (Two Wires) - - 1 ModBus
RS-artikelnummer 885-0926
Tillv. art.nrIS.MD21.base
VarumärkeIndustrial Shields
2 299,72 kr
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- M-Duino - 13 Analogue, Digital - - 12 → 24 V dc - Analogue, Digital - - 8 Ethernet, ModBus
RS-artikelnummer 864-4538
Tillv. art.nr0850-0600
VarumärkeBARTH
1 316,59 kr
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STG-600 - - 10 Analogue, Digital - - - - PWM, Solid State - - 9 -
RS-artikelnummer 442-0795
Tillv. art.nrAL2-24MR-A
VarumärkeMitsubishi
2 527,10 kr
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- - - 15 Digital - - - - Relay - - 9 -
RS-artikelnummer 123-2106
Tillv. art.nr0850-0680
VarumärkeBARTH
1 316,59 kr
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STG-680 - - 10 Analogue, DC Digital - - - - Digital, PWM, Solid-State - - 10 -
RS-artikelnummer 763-1002
Tillv. art.nr1SAP186200R0004
VarumärkeABB
6 386,84 kr
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AC500-eCo Series AC500-eC0 8 8 Digital - 6 24 V dc - Digital - Yes 6 Ethernet
RS-artikelnummer 815-5634
Tillv. art.nrAFPX-C30R
VarumärkePanasonic
3 135,11 kr
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FP-X Series AFPX-C Series - 16 DC - - 100 → 240 V ac - Relay - - 14 Ethernet
RS-artikelnummer 862-4487
Tillv. art.nr6ES7215-1AG40-0XB0
VarumärkeSiemens
5 604,28 kr
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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
RS-artikelnummer 442-0789
Tillv. art.nrAL2-14MR-D
VarumärkeMitsubishi
1 807,95 kr
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- - - 8 Analogue - - - - Relay - - 6 -
RS-artikelnummer 825-1685
Tillv. art.nr6ED1055-1NB10-0BA2
VarumärkeSiemens
1 127,06 kr
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LOGO! 8, LOGO! 8.2 - - 8 Digital - - - - Relay - - 8 -
RS-artikelnummer 760-9229
Tillv. art.nrZEN-10C2AR-A-V2
VarumärkeOmron
2 047,00 kr
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- - - 6 Analogue - - - - Relay - - 4 -
RS-artikelnummer 872-6328
Tillv. art.nr6AV2132-0KA00-0AA1
VarumärkeSiemens
4 518,96 kr
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LOGO! 8, LOGO! 8.2 - - - Digital - - - - Relay - - 4 Ethernet