PLC CPUs

A PLC (programmable logic controller is a digital industrial computer designed for the control of manufacturing processes or robotic devices where reliability control, simple programming and fault diagnosis is necessary. The CPU (central processing unit) forms part of the PLC system.

PLC CPUs are microprocessors that act as the electronic circuitry within an industrial computer. CPUs in PLC systems carry out instructions from the computer program, performing basic mathematical, logical, control and input/output operations.

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

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Description Price 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 Stock No. 846-4695
Mfr. Part No.OEMGBPACTM221NT
£760.24
Each
Units
- Modicon M221C - 9 Discrete - - - - Digital - Yes 7 -
RS Stock No. 806-6837
Mfr. Part No.TM221CE16R
£186.00
Each
Units
- Modicon M221 - 9 Discrete - - - - Digital - Yes 7 -
RS Stock No. 862-4471
Mfr. Part No.6ES7214-1AG40-0XB0
BrandSiemens
£355.00
Each
Units
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 Stock No. 885-0926
Mfr. Part No.IS.MD21.base
£198.76
Each
Units
- M-Duino - 13 Analogue, Digital - - 12 → 24 V dc - Analogue, Digital - - 8 Ethernet, ModBus
RS Stock No. 864-3999
Mfr. Part No.6AV6651-7DA01-3AA4
BrandSiemens
£881.00
Each
Units
- S7-1200 - - - - - 24 V dc - - - Yes - Profibus, Profinet
RS Stock No. 875-5672
Mfr. Part No.FX5U-32MR-ES
BrandMitsubishi
£656.50
Each
Units
MELSEC IQ-F Series IQ Platform-Compatible PLC FX5U - 16 Sink, Source - - 100 → 240 V ac - Relay, Transistor - - 16 Inverter Communication, MELSEC Communication protocol (3C/4C Frames), MELSOFT Connection, Modbus RTUI, N:N Network, Predefined Protocol Support, SLMP (3E Frame), Socket Communication
RS Stock No. 862-4480
Mfr. Part No.6ES7214-1HG40-0XB0
BrandSiemens
£355.00
Each
Units
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 Stock No. 786-7201
Mfr. Part No.2080-LC50-48QBB
£653.00
Each
Units
Micro800 Series Micro850 - 28 AC, DC 28 - 24 V dc 20 - Ethernet - 20 Ethernet, USB
RS Stock No. 795-7975
Mfr. Part No.FX3S-14MR-ES
BrandMitsubishi
£189.00
Each
Units
FX3 Series FX3S - 8 DC - - 100 → 240 V ac - Relay, Transistor - - 6 Ethernet, ModBus
RS Stock No. 828-5259
Mfr. Part No.6AV6651-7KA01-3AA4
BrandSiemens
£551.00
Each
Units
SIMATIC S7-1200 Series - - - - - - 85 → 264 V ac - - - Yes - Profibus, Profinet
RS Stock No. 750-8602
Mfr. Part No.2080-LC10-12QWB
£81.40
Each
Units
- Micro810 - 8 Analogue, Digital - - 24 V dc - Relay - Yes 4 USB
RS Stock No. 750-8624
Mfr. Part No.2080-LC30-24QWB
£297.00
Each
Units
Micro800 Series Micro830 - 14 Digital - - 24 V ac/dc - Digital - Yes 10 ModBus
RS Stock No. 864-4002
Mfr. Part No.6AV6651-7HA01-3AA4
BrandSiemens
£473.00
Each
Units
- S7-1200 - - - - - 24 V dc - - - Yes - Profinet
RS Stock No. 698-7739
Mfr. Part No.1747-L552
£4,500.00
Each
Units
SLC 500 Series SLC 500 - - Digital - - 5 → 24 V - Digital Ethernet - - Ethernet
RS Stock No. 786-7213
Mfr. Part No.2080-LC50-48QWB
£653.00
Each
Units
Micro800 Series Micro850 - 28 AC, DC - - 24 V dc - Relay Ethernet - 20 Ethernet, USB
RS Stock No. 862-4477
Mfr. Part No.6ES7214-1BG40-0XB0
BrandSiemens
£355.00
Each
Units
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 Stock No. 862-4487
Mfr. Part No.6ES7215-1AG40-0XB0
BrandSiemens
£534.00
Each
Units
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 Stock No. 468-4501
Mfr. Part No.SR2PACKBD
£153.00
Each
Units
Zelio 2 Zelio Logic 2 - 8 (Up → 8 Digital, Up → 4 Analogue) Analogue, Digital - - 24 V dc - Relay - Yes 4 (Relay) -
RS Stock No. 488-6656
Mfr. Part No.6ES7216-2BD23-0XB0
BrandSiemens
£909.00
Each
Units
SIMATIC S7-200 Series S7-200 - 24 (Digital) Digital - - 120 V ac, 230 V ac - Digital, Relay - - 16 (Digital) -
RS Stock No. 795-7972
Mfr. Part No.FX3S-30MR-ES
BrandMitsubishi
£314.50
Each
Units
FX3 Series FX3S - 16 DC - - 100 → 240 V ac - Relay, Transistor - - 14 Ethernet, ModBus
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