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 Price 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 Supply Voltage Interface Kit Included Number of Outputs Network Type
RS庫存編號 123-2106
製造零件編號0850-0680
BrandBARTH
TWD5,103.00
單位
STG-680 Lococube mini-PLC 10 - Digital, PWM, Solid-State Analogue, DC Digital - - - 7 → 32 V dc - - 10 -
RS庫存編號 885-0910
製造零件編號0850-0115
BrandBARTH
TWD8,491.00
單位
STG-115 Lococube mini-PLC 8 - Analogue Analogue, Digital - - - 24 V dc - - 9 -
RS庫存編號 885-0897
製造零件編號0850-0650
BrandBARTH
TWD4,558.00
單位
STG-650 Lococube mini-PLC 10 - Digital Analogue, Digital - - - 7 → 32 V dc - - 9 CAN
RS庫存編號 885-0894
製造零件編號0660-0650
BrandBARTH
TWD5,815.00
單位
STG-650 Lococube mini-PLC 10 - Digital Analogue, Digital - - - 7 → 32 V dc - - 9 CAN
RS庫存編號 864-4538
製造零件編號0850-0600
BrandBARTH
TWD5,023.00
單位
STG-600 Lococube mini-PLC 10 - PWM, Solid State Analogue, Digital - - - 7 → 32 V dc - - 9 -
RS庫存編號 443-0247
製造零件編號EASY-M-256K
BrandEaton
TWD1,280.00
單位
Easy 800 Series - - - - - - - - - - - - -
RS庫存編號 781-6859
製造零件編號Q00UJCPU
BrandMitsubishi
TWD18,967.00
單位
MELSEC Q Series Q Series - - - - - - - - - - - Ethernet
RS庫存編號 862-4487
製造零件編號6ES7215-1AG40-0XB0
BrandSiemens
TWD23,290.00
單位
SIMATIC S7-1200 Series S7-1200 2 switch as Analogue Input), 14 (Digital Input - Digital, Transistor Analogue, Digital - 24 V dc - - - - Transistor Output), 10 (Digital Output Ethernet
RS庫存編號 705-4865
製造零件編號FX3G-40MR-ES
BrandMitsubishi
TWD24,995.00
單位
- FX3G 24 - Relay Sink/Source - - - 100 → 240 V ac - - 16 -
RS庫存編號 806-6847
製造零件編號TM221M16R
TWD15,614.00
單位
- Modicon M221 - - Digital - - - - - - Yes - -
RS庫存編號 862-4471
製造零件編號6ES7214-1AG40-0XB0
BrandSiemens
TWD19,999.00
單位
SIMATIC S7-1200 Series S7-1200 2 switch as Analogue Input), 14 (Digital Input - Digital, Transistor Analogue, Digital - 24 V dc - - - - Transistor Output), 10 (Digital Output Ethernet
RS庫存編號 885-0907
製造零件編號0850-0095
BrandBARTH
TWD7,162.00
單位
STG-95 Lococube mini-PLC 8 - Analogue Analogue, Digital - - - 7 → 32 V dc - - 8 -
RS庫存編號 806-6812
製造零件編號TM221CE40T
TWD22,444.00
單位
- Modicon M221 - - Digital - - - - - - Yes - Ethernet, ModBus, Profibus DP, USB
RS庫存編號 705-4874
製造零件編號FX3G-60MR-ES
BrandMitsubishi
TWD36,335.00
單位
- FX3G 36 - Relay Sink/Source - - - 100 → 240 V ac - - 24 -
RS庫存編號 885-0888
製造零件編號0850-0550
BrandBARTH
TWD3,645.00
單位
STG-550 Lococube mini-PLC 5 - Digital Analogue, Digital - - - 7 → 32 V dc - - 5 CAN
RS庫存編號 806-6755
製造零件編號TM251MESE
TWD29,851.00
單位
Modicon M251 Modicon M251 - - - - - 24 V dc - - - - - -
RS庫存編號 864-4541
製造零件編號0660-0600
BrandBARTH
TWD5,146.00
單位
STG-600 Lococube mini-PLC 10 - Mosfet, Solid State Analogue, Digital - - - 7 → 32 V dc - - 8 -
RS庫存編號 468-4242
製造零件編號SR3B261BD
TWD15,064.00
單位
- Zelio Logic 16 - Relay Analogue, Discrete - - - 24 V dc - - 10 -
RS庫存編號 864-4535
製造零件編號0850-0500
BrandBARTH
TWD3,431.00
單位
STG-115 Lococube mini-PLC 5 - PWM, Solid State Analogue, Digital - - - 7 → 32 V dc - - 5 -
RS庫存編號 872-6321
製造零件編號6AV2132-3GB00-0AA1
BrandSiemens
TWD34,859.00
單位
LOGO! 8, LOGO! 8.2 LOGO! - - Relay Digital - - - 12 → 24 V dc - - 4 Ethernet