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. 674-1952
Mfr. Part No.TM2DDO32TK
PHP15,641.58
Each
units
Modicon M238, Twido Series - 32 - Digital Modicon M238, Twido Series - - 24 V dc 400 mA Output Module 92.3mm 33.5mm 94.5mm
RS Stock No. 662-3498
Mfr. Part No.6ES7131-4BD01-0AB0
BrandSiemens
PHP2,940.77
Each
units
SIMATIC ET 200S 4 - Digital - SIMATIC ET 200S Series 4 - 24 V dc 500 mA - 81mm 15mm 52mm
RS Stock No. 705-4956
Mfr. Part No.FX3U-3A-ADP
BrandMitsubishi
PHP17,937.23
Each
units
FX3G Series 2 1 Analogue Analogue FX3GPLC 3 - 5 → 24 V dc - - - - -
RS Stock No. 888-7896
Mfr. Part No.G4OAC24A
BrandOpto 22
PHP1,084.02
Each
units
G4 1 1 Digital Digital AC Voltage - - - 24 → 280 V ac 3 A Digital AC Output 48.8mm 12.2mm 41.1mm
RS Stock No. 662-3514
Mfr. Part No.6ES7132-4BB31-0AB0
BrandSiemens
PHP3,989.77
Each
units
SIMATIC ET 200S - 2 - Digital SIMATIC ET 200S Series 2 - 24 V dc 2 A - 81mm 15mm 52mm
RS Stock No. 320-9137
Mfr. Part No.FX2N-32ER-ES/UL
BrandMitsubishi
PHP24,201.65
Each
units
FX2N Series 16 16 - - FX2N Series - - 100 → 240 V ac - I/O Module 90mm 150mm 87mm
RS Stock No. 787-7958
Mfr. Part No.6ES7222-1BH32-0XB0
BrandSiemens
PHP12,311.90
Each
units
SM 1222 - 16 Digital Digital SIMATIC S7-1200 Series - - 24 V dc 500 mA - 100mm 45mm 75mm
RS Stock No. 787-7970
Mfr. Part No.6ES7231-4HF32-0XB0
BrandSiemens
PHP30,381.60
Each
units
SM 1231 8 - Analogue Analogue SIMATIC S7-1200 Series - - 24 V dc - - 100mm 45mm 75mm
RS Stock No. 746-6602
Mfr. Part No.6ES7323-1BH01-0AA0
BrandSiemens
PHP20,699.80
Each
units
- 8 8 Digital Digital S7-300 Series - - 24 V dc - - 125mm 40mm 120mm
RS Stock No. 667-9236
Mfr. Part No.750-430
BrandWago
PHP5,647.43
Each
units
I/O SYSTEM 750 8 (Channel) - Digital - 750 Series - - 24 V dc - Input Module 100mm 12mm 64mm
RS Stock No. 455-6945
Mfr. Part No.QY81P
BrandMitsubishi
PHP21,672.54
Each
units
MELSEC Q - 32 - Digital, Transistor MELSEC Q Series 32 - 12 → 24 V dc - - 98mm 27.4mm 90mm
RS Stock No. 662-3494
Mfr. Part No.6ES7132-4BD02-0AA0
BrandSiemens
PHP2,907.31
Each
units
SIMATIC ET 200S - 4 - Digital SIMATIC ET 200S Series 4 - 24 V dc 500 mA - 81mm 15mm 52mm
RS Stock No. 806-6960
Mfr. Part No.TM3DQ16TG
PHP10,194.26
Each
units
TM3 Series - 16 - Source, Transistor Modicon M221, Modicon M241, Modicon M251 - - 24 V 500 mA - 90mm 23.6mm 70mm
RS Stock No. 806-6998
Mfr. Part No.TM3DQ16U
PHP10,194.26
Each
units
TM3 Series - 16 - Transistor Modicon M221, Modicon M241, Modicon M251 - - 24 V 500 mA - 90mm 23.6mm 70mm
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. 815-5559
Mfr. Part No.FP2-XY64D2T
BrandPanasonic
PHP23,691.16
Each
units
FP2 Series 32 32 DC NPN FP2 Series 64 - 24 V dc 100 mA - - - -
RS Stock No. 662-3567
Mfr. Part No.6ES7134-4JB51-0AB0
BrandSiemens
PHP15,719.40
Each
units
SIMATIC ET 200S 2 - Analogue - SIMATIC ET 200S Series 2 - 24 V dc - - 81mm 15mm 52mm
RS Stock No. 253-2341
Mfr. Part No.TSXDMZ64DTK
PHP52,683.33
Each
units
Modicon TSX Micro 32 32 (Solid State) Discrete Discrete Modicon TSX 64 - 24 V dc 100 mA - - - -
RS Stock No. 467-804
Mfr. Part No.6GK5786-2AA60-2AA0
BrandSiemens
PHP106,597.75
Each
units
6GK5 786 - - - - - 7 - 100 → 240 V ac, 12 → 24 V dc - - 251mm 251mm 72mm
RS Stock No. 735-2888
Mfr. Part No.6ES7231-5PA30-0XB0
BrandSiemens
PHP7,237.15
Each
units
SIMATIC S7-1200 1 - Analogue, RTD - SIMATIC S7-1200 Series 1 - 5 V dc - - 62mm 38mm 21mm
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