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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รายละเอียดสินค้า / Description ราคา / 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 Output Type Interface Kit Included Number of Outputs Network Type Display Included
RS Stock No. 468-4438
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SR2B121BD
THB9,387.40
Each
Units
- Zelio Logic - 8 Analogue, Discrete - - - Relay - - 4 - Yes
RS Stock No. 468-4494
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SR2B201FU
THB12,996.07
Each
Units
- Zelio Logic - 12 Discrete - - - Relay - - 8 - Yes
RS Stock No. 468-4258
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SR3B261FU
THB10,445.33
Each
Units
- Zelio Logic - 16 Discrete - - - Relay - - 10 - Yes
RS Stock No. 806-6812
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.TM221CE40T
THB19,510.86
Each
Units
- Modicon M221 - - - - - - Digital - Yes - Ethernet, ModBus, Profibus DP, USB Yes
RS Stock No. 468-4472
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SR2B201BD
THB11,759.07
Each
Units
- Zelio Logic - 12 Analogue, Discrete - - - Relay - - 8 - Yes
RS Stock No. 479-6064
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SR2B122BD
THB8,644.07
Each
Units
- Zelio Logic - 8 Analogue, Discrete - - - Transistor - - 4 - Yes
RS Stock No. 479-6109
THB6,936.77
Each
Units
- Zelio Logic - 12 Discrete - - - Relay - - 8 - -
RS Stock No. 806-6859
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.TM221ME16R
THB11,400.32
Each
Units
- Modicon M221 - - - - - - Digital - Yes - Ethernet, ModBus, Profibus DP, USB Yes
RS Stock No. 468-4488
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SR2A201FU
THB7,820.05
Each
Units
- Zelio Logic - 12 Discrete - - - Relay - - 8 - Yes
RS Stock No. 468-4466
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SR2A201BD
THB8,245.64
Each
Units
- Zelio Logic - 12 Analogue, Discrete - - - Relay - - 8 - Yes
RS Stock No. 806-6828
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.TM221CE24R
THB15,999.63
Each
Units
- Modicon M221 - - - - - - Digital - Yes - - Yes
RS Stock No. 468-4236
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SR3B101FU
THB6,280.11
Each
Units
- Zelio Logic - 6 Discrete - - - Relay - - 4 - Yes
RS Stock No. 444-4460
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.TWDLMDA40DTK
THB23,753.19
Each
Units
- Twido - - - - - - Analogue, Transistor - - 16 DeviceNet Yes
RS Stock No. 468-4242
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SR3B261BD
THB16,097.67
Each
Units
- Zelio Logic - 16 Analogue, Discrete - - - Relay - - 10 - Yes
RS Stock No. 479-6193
THB15,646.49
Each
Units
- Zelio Logic - 16 Discrete - - - Relay - - 10 - Yes
RS Stock No. 468-4539
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SR2PACK2FU
THB10,976.34
Each
Units
Zelio 2 Zelio Logic 2 - 12 (Digital) Digital - - 100 → 240 V ac Relay - Yes 8 (Relay) - Yes
RS Stock No. 479-6121
THB8,458.38
Each
Units
- Zelio Logic - 12 Discrete - - - Relay - - 8 - Yes
RS Stock No. 615-2337
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SR3XT43BD
THB6,870.04
Each
Units
Zelio Logic Modules Zelio Logic - 3 Analogue, PT100 - - - Analogue - - 2 - -
RS Stock No. 806-6780
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.TM241CE24R
THB16,582.29
Each
Units
- Modicon M241 - 14 - - - 100 → 240 V Relay - - 10 Ethernet, ModBus, Profibus DP, USB Yes
RS Stock No. 479-6238
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SR3XT141B
THB3,815.81
Each
Units
Zelio Logic Modules Zelio Logic - 8 Discrete - - - Relay - - 6 - -