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. 539-0774
Mfr. Part No.FX3U-4AD-TC-ADP
BrandMitsubishi
PHP23,190.00
Each
units
FX3U Series 4 - Analogue, J Type, K Type Digital, J Type, K Type FX3U Series - - 5 V dc, 24 V dc - Analogue Temperature Input Adapter 106mm 17.6mm 89.5mm
RS Stock No. 735-2910
Mfr. Part No.6GK7243-5DX30-0XE0
BrandSiemens
PHP36,730.47
Each
units
S7-1200 - - - - S7-1200 Series - - - - - 100mm 30mm 75mm
RS Stock No. 806-6966
Mfr. Part No.TM3DQ16T
PHP9,805.17
Each
units
TM3 Series - 16 - Source, Transistor Modicon M221, Modicon M241, Modicon M251 - - 24 V 500 mA - 90mm 23.6mm 70mm
RS Stock No. 787-7942
Mfr. Part No.6ES7221-1BF32-0XB0
BrandSiemens
PHP7,993.80
Each
units
SM 1221 8 - Digital Digital SIMATIC S7-1200 Series - - 24 V dc - - 100mm 45mm 75mm
RS Stock No. 719-1948
Mfr. Part No.750-559
BrandWago
PHP11,702.39
Each
units
I/O SYSTEM 750 - 4 (Channel) - Analogue 750 Series - - 0 → 10 V - Output Module 100mm 12mm 64mm
RS Stock No. 806-6972
Mfr. Part No.TM3DQ32TK
PHP14,941.21
Each
units
TM3 Series - 32 - Source, Transistor Modicon M221, Modicon M241, Modicon M251 - - 24 V 100 mA - 90mm 30.2mm 70mm
RS Stock No. 662-3583
Mfr. Part No.6ES7135-4FB01-0AB0
BrandSiemens
PHP10,972.45
Each
units
SIMATIC ET 200S - 2 - Analogue SIMATIC ET 200S Series 2 - 24 V dc 25 mA - 81mm 15mm 52mm
RS Stock No. 539-0768
Mfr. Part No.FX3U-4AD-PT-ADP
BrandMitsubishi
PHP23,190.00
Each
units
MELSEC FX 4 (PT100) - Analogue Relay, Transistor MELSEC FX Series 4 - 5 → 24 V dc - - 90mm 17.6mm 89.5mm
RS Stock No. 147-988
Mfr. Part No.BMXAMI0410
PHP25,246.30
Each
units
M340 4 - Analogue - M340 Series 4 - 24 V dc - - - - -
RS Stock No. 614-0687
Mfr. Part No.6GK5101-1BB00-2AA3
BrandSiemens
PHP24,824.20
Each
units
6GK5 101 - - - - - - Ethernet 24 V dc - Ethernet Communications Module 125mm 40mm 124mm
RS Stock No. 828-5262
Mfr. Part No.6ES7231-5ND32-0XB0
BrandSiemens
PHP30,381.60
Each
units
6ES7231 4 - Analogue - SIMATIC S7-1200 4 - 24 V dc - - 100mm 45mm 75mm
RS Stock No. 455-6822
Mfr. Part No.QX80
BrandMitsubishi
PHP11,283.73
Each
units
MELSEC Q 16 - Digital - MELSEC Q Series 16 - 24 V dc - - 98mm 27.4mm 90mm
RS Stock No. 253-2313
Mfr. Part No.TSXDSZ08R5
PHP14,629.93
Each
units
Modicon TSX Micro - 8 (Channel) - Discrete, Relay Modicon TSX 8 - 24 V dc 1 A - - - -
RS Stock No. 901-0817
Mfr. Part No.2903806
PHP36,701.92
Each
units
TC MOBILE I/O X200 AC 4 4 Digital Relay PSI Modem SMS Relay 8 - 125 V dc, 250 V ac 5 A Digital 71.6mm 62.2mm 89.7mm
RS Stock No. 674-1971
Mfr. Part No.TM2DRA8RT
PHP7,932.43
Each
units
Modicon M238, Twido Series - 8 - Digital Modicon M238, Twido Series - - 24 V dc - Output Module 90mm 24mm 70mm
RS Stock No. 696-2119
Mfr. Part No.2313452
PHP40,283.68
Each
units
FL COMSERVER UNI 232/422/485 - - - - - - - 28 V dc, 240 V ac - - 86mm 12.3mm 96mm
RS Stock No. 882-0335
Mfr. Part No.750-642
BrandWago
PHP21,853.85
Each
units
750 - - Voltage Transmitter 750 Series - - - - - 100mm 24mm 70.5mm
RS Stock No. 818-4235
Mfr. Part No.CJ1WID212
BrandOmron
PHP16,341.95
Each
units
CJ1W-ID 16 - Voltage - CJ/NJ Controllers 16 (Input) - 24 V dc - - 95.4mm 31mm 89mm
RS Stock No. 510-1423
Mfr. Part No.CJ1W-DA041
BrandOmron
PHP49,920.76
Each
units
CJ Series - 4 - Analogue CJ Series 4 - 24 V dc 12 mA - 90mm 31mm 65mm
RS Stock No. 667-9233
Mfr. Part No.750-432
BrandWago
PHP2,313.23
Each
units
I/O SYSTEM 750 4 (Channel) - Digital - 750 Series - - 24 V dc - Input Module 100mm 12mm 64mm
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