PLC I/O Modules

PLC I/O modules are one of the three core components that operate a programmable logic controller. I/O refers to input/output. PLC I/O modules act as messengers between a processor and an I/O device.

How do PLC I/O modules work?

PLC I/O modules assist the data exchange between an external device and computer memory. Their main job is to process communication to the PLC and accept commands sent from a processor. They can also detect errors, run status reports and co-ordinate a timely flow of data.

Types of PLC I/O modules

The type of PLC I/O modules used by a programmable logic controller depends on the type of input device. These are categorised as input or output types. Some PLCs respond to digital inputs and outputs, whereas others respond to analog signals. Digital inputs are either on or off, and analog signals process conditions as voltage. Other types include discrete, speciality and communication modules. Smaller PLCs are usually designed with fixed I/O points.


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Description Price Manufacturer Series Number of Inputs Number of Outputs Input Type Output Type For Use With Number of I/O Interface Voltage Category Output Current Module Type Length Width Depth
RS Stock No. 443-0146
Mfr. Part No.EASY819-DC-RC
BrandEaton
PHP22,808.97
Each
units
Easy 800 Series 12 6 Digital Relay Easy 800 Series, Easy 819 18 - 20.4 → 28.8 V dc - - 90mm 107.5mm 72mm
RS Stock No. 662-3567
Mfr. Part No.6ES7134-4JB51-0AB0
BrandSiemens
PHP14,986.38
Each
units
SIMATIC ET 200S 2 - Analogue - SIMATIC ET 200S Series 2 - 24 V dc - - 81mm 15mm 52mm
RS Stock No. 467-804
Mfr. Part No.6GK5786-2AA60-2AA0
BrandSiemens
PHP101,626.95
Each
units
6GK5 786 - - - - - 7 - 100 → 240 V ac, 12 → 24 V dc - - 251mm 251mm 72mm
RS Stock No. 453-2630
Mfr. Part No.6ES7322-1HH01-0AA0
BrandSiemens
PHP35,653.36
Each
units
SIMATIC S7-300 Series - 16 - Digital, Relay S7-300 Series - - 24 → 240 V ac, 24 V dc 2 A - 125mm 40mm 120mm
RS Stock No. 719-1942
Mfr. Part No.750-555
BrandWago
PHP12,616.23
Each
units
I/O SYSTEM 750 - 4 (Channel) - Analogue 750 Series - - - - Output Module 100mm 12mm 64mm
RS Stock No. 508-3937
Mfr. Part No.750554
BrandWago
PHP30,891.50
Each
units
I/O SYSTEM 750 - 2 (Channel) - Analogue 750 Series - - - - Output Module 100mm 12mm 64mm
RS Stock No. 764-6252
Mfr. Part No.2901533
PHP18,725.51
Each
units
PLC-RPT- 24DC/21AU, RAD-DAIO6-IFS 1 (Analogue), 2 (Digital) 1 (Analogue), 2 (Digital) Analogue, Digital Analogue, Current, Digital, Relay, Voltage RAD-2400-IFS Wireless Module - - 19.2 → 30.5 V dc 20 mA - 99mm 17.5mm 114.5mm
RS Stock No. 746-6555
Mfr. Part No.6ES7321-1FH00-0AA0
BrandSiemens
PHP16,692.75
Each
units
- 16 - Digital - S7-300 Series - - 120/230 V ac - Input 125mm 40mm 120mm
RS Stock No. 667-9236
Mfr. Part No.750-430
BrandWago
PHP4,533.10
Each
units
I/O SYSTEM 750 8 (Channel) - Digital - 750 Series - - 24 V dc - Input Module 100mm 12mm 64mm
RS Stock No. 405-6209
Mfr. Part No.4825 0093
BrandSocomec
PHP11,336.78
Each
units
- - 4 - Analogue - - - - - - - - -
RS Stock No. 662-3700
Mfr. Part No.6ES7193-4CC20-0AA0
BrandSiemens
PHP630.62
Each
units
ET200S - - - - ET200S Series - - - - Terminal Module - - -
RS Stock No. 806-6948
Mfr. Part No.TM3DQ8RG
PHP7,021.73
Each
units
TM3 Series - 8 - Relay Modicon M221, Modicon M241, Modicon M251 - - 24 → 240 V 2 A - 90mm 23.6mm 70mm
RS Stock No. 893-0671
Mfr. Part No.1315250000
BrandWeidmuller
PHP9,563.29
Each
units
- - 16 - Digital - 16 - - 500 (Per Channel) mA, 8 (Per Module) A Digital Output 120mm 11.5mm 76mm
RS Stock No. 787-7967
Mfr. Part No.6ES7223-1BL32-0XB0
BrandSiemens
PHP19,489.00
Each
units
SM 1223 16 16 Digital Digital SIMATIC S7-1200 Series 32 - 24 V dc 500 mA - 100mm 70mm 75mm
RS Stock No. 735-2888
Mfr. Part No.6ES7231-5PA30-0XB0
BrandSiemens
PHP6,899.67
Each
units
SIMATIC S7-1200 1 - Analogue, RTD - SIMATIC S7-1200 Series 1 - 5 V dc - - 62mm 38mm 21mm
RS Stock No. 455-6945
Mfr. Part No.QY81P
BrandMitsubishi
PHP20,661.92
Each
units
MELSEC Q - 32 - Digital, Transistor MELSEC Q Series 32 - 12 → 24 V dc - - 98mm 27.4mm 90mm
RS Stock No. 746-6602
Mfr. Part No.6ES7323-1BH01-0AA0
BrandSiemens
PHP19,734.54
Each
units
- 8 8 Digital Digital S7-300 Series - - 24 V dc - - 125mm 40mm 120mm
RS Stock No. 787-7951
Mfr. Part No.6ES7222-1HF32-0XB0
BrandSiemens
PHP7,789.95
Each
units
SM 1222 - 8 Digital Digital SIMATIC S7-1200 Series - - 24 V dc 2 A - 100mm 45mm 75mm
RS Stock No. 770-2447
Mfr. Part No.TM5C24D18T
PHP30,534.13
Each
units
TM5 24 18 Digital Digital, Transistor Modicon LMC058, Modicon M258 - - 24 V dc 9 A - 99mm 62.5mm 75mm
RS Stock No. 512-5889
Mfr. Part No.CJ1WID211
BrandOmron
PHP15,407.58
Each
units
SYSMAC CJ Series 16 - Digital - SYSMAC CJ Series 16 - 20.4 26.4 V dc 3 mA - 89mm 31mm 95.4mm
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