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 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. 123-7005
Mfr. Part No.88981133
BrandCrouzet
PHP28,997.69
Each
units
- Em4 - 4 (Digital), 12 (Digital/Analogue) Analogue, Digital - - 24 V dc PWM, Relay - - 2 (PWM), 8 (Relay) - -
RS Stock No. 123-7000
Mfr. Part No.88981123
BrandCrouzet
PHP44,031.89
Each
units
- Em4 - 4 (Digital), 12 (Digital/Analogue) Analogue, Digital - - 24 V dc PWM, Relay - - 2 (PWM), 8 (Relay) - -
RS Stock No. 123-7001
Mfr. Part No.88981126
BrandCrouzet
PHP57,779.70
Each
units
- Em4 - 4 (Digital), 12 (Digital/Analogue) Analogue, Digital - - 24 V dc PWM, Relay - - 2 (PWM), 8 (Relay) - -
RS Stock No. 742-4214
Mfr. Part No.88974144
BrandCrouzet
PHP11,121.71
Each
units
- Millenium 3 - 6 Digital - - - Relay - - 4 - Yes
RS Stock No. 742-4179
Mfr. Part No.88974044
BrandCrouzet
PHP10,312.22
Each
units
- Millenium 3 - 8 Digital - - - Relay - - 4 - Yes
RS Stock No. 742-4217
Mfr. Part No.88974142
BrandCrouzet
PHP12,217.50
Each
units
- Millenium 3 - 6 Analogue, Digital - - - Transistor - - 4 - Yes
RS Stock No. 536-9067
Mfr. Part No.88970321
BrandCrouzet
PHP6,575.56
Each
units
Millenium 3 Series Millenium 3 - 6 Digital - - - Relay - - 4 - -
RS Stock No. 614-9993
Mfr. Part No.88970021
BrandCrouzet
PHP7,088.66
Each
units
- Millenium 3 - 8 Analogue, Digital - - - Relay - - 4 - -
RS Stock No. 175-2518
Mfr. Part No.88975111
BrandCrouzet
PHP20,205.90
Each
units
PLC XDP24-E - 16 (Digital) Digital - - 24 V dc Relay - - 8 Ethernet Yes
RS Stock No. 742-4185
Mfr. Part No.88974054
BrandCrouzet
PHP15,110.96
Each
units
- Millenium 3 - 12 Digital - - - Relay - - 8 - Yes
RS Stock No. 536-9124
Mfr. Part No.88970211
BrandCrouzet
PHP4,786.56
Each
units
Millenium 3 Series Millenium 3 - 4 Digital - - - Relay - - 2 - -
RS Stock No. 614-9842
Mfr. Part No.88970045
BrandCrouzet
PHP10,109.27
Each
units
- Millenium 3 - 8 Analogue, Digital - - - Relay - - 4 - Yes
RS Stock No. 175-2520
Mfr. Part No.88975011
BrandCrouzet
PHP18,695.00
Each
units
PLC XBP24-E - 16 (Digital) Digital - - 24 V dc Relay - - 8 Ethernet -
RS Stock No. 536-8929
Mfr. Part No.88970051
BrandCrouzet
PHP12,689.09
Each
units
- Millenium 3 - 12 Analogue, Digital - - - Relay - - 8 - Yes
RS Stock No. 704-8327
Mfr. Part No.88974041
BrandCrouzet
PHP11,341.21
Each
units
CD12 Series CD12 - 8 Analogue, Digital - - - Relay - - 4 - Yes
RS Stock No. 742-4194
Mfr. Part No.88974080
BrandCrouzet
PHP14,125.49
Each
units
- Millenium 3 - 8 Analogue, Digital - - - Relay - - 4 - Yes
RS Stock No. 614-9965
Mfr. Part No.88970165
BrandCrouzet
PHP17,967.87
Each
units
- Millenium 3 - 16 Analogue, Digital - - - Relay - - 10 - Yes
RS Stock No. 536-9023
Mfr. Part No.88970162
BrandCrouzet
PHP17,097.09
Each
units
- Millenium 3 - 16 Analogue, Digital - - - Transistor - - 10 - Yes
RS Stock No. 536-9102
Mfr. Part No.88970231
BrandCrouzet
PHP7,366.95
Each
units
Millenium 3 Series Millenium 3 - 8 Digital - - - Relay - - 6 - -
RS Stock No. 536-9146
Mfr. Part No.88970241
BrandCrouzet
PHP9,534.57
Each
units
Millenium 3 Series Millenium 3 - 2 Analogue, PT100 - - - Analogue - - 2 - -