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. 712-5080
Mfr. Part No.Insys Moros LAN Pro
PHP62,173.27
Each
units
- - - - - - - - 10 60 V dc - - 110mm 70mm 75mm
RS Stock No. 674-1946
Mfr. Part No.TM2DDI32DK
PHP14,991.94
Each
units
Twido Series 32 - Digital - Twido Series - - 24 V dc - Input Module 92.3mm 33.5mm 94.5mm
RS Stock No. 746-6621
Mfr. Part No.6ES7331-7KB02-0AB0
BrandSiemens
PHP15,654.09
Each
units
- 2 - Analogue - SIMATIC S7-300 Series - - - - Input 125mm 40mm 120mm
RS Stock No. 868-7374
Mfr. Part No.750-517
BrandWago
PHP6,007.40
Each
units
750 - 2 Digital Relay - 2 (Output) - - 1 A @ 250 V ac, 1 A @ 40 V dc - 64mm 12mm 100mm
RS Stock No. 147-641
Mfr. Part No.BMXDDO1602
PHP11,205.22
Each
units
M340 - 16 - Discrete, Transistor M340 Series 16 - 24 V dc - - - - -
RS Stock No. 612-9078
Mfr. Part No.6ES7331-7HF01-0AB0
BrandSiemens
PHP54,455.46
Each
units
SIMATIC S7-300 Series 8 - Analogue - SIMATIC S7-300 Series 8 - 24 V dc - - 125mm 40mm 120mm
RS Stock No. 893-0634
Mfr. Part No.1334910000
BrandWeidmuller
PHP28,855.92
Each
units
u-remote - - - - Remote I/O - - - - Fieldbus Coupler 52mm 76mm 120mm
RS Stock No. 148-206
Mfr. Part No.BMXDDI3202K
PHP18,087.82
Each
units
M340 32 - Discrete - M340 Series 32 - 24 V dc - - - - -
RS Stock No. 705-4925
Mfr. Part No.FX3U-4AD
BrandMitsubishi
PHP19,363.59
Each
units
MELSEC FX 4 - Analogue - MELSEC FX Series 4 - 5 V dc, 24 V dc - - 90mm 55mm 87mm
RS Stock No. 667-9220
Mfr. Part No.750-400
BrandWago
PHP2,759.00
Each
units
I/O SYSTEM 750 2 (Channel) - Digital - 750 Series - - 24 V dc - Input Module 100mm 12mm 64mm
RS Stock No. 508-3915
Mfr. Part No.750513
BrandWago
PHP6,007.40
Each
units
I/O SYSTEM 750 - 2 (Channel) - Digital, Relay 750 Series - - 230 V dc - Output Module 100mm 12mm 64mm
RS Stock No. 705-4928
Mfr. Part No.FX3U-4DA
BrandMitsubishi
PHP31,493.66
Each
units
MELSEC FX - 4 - Analogue MELSEC FX Series 4 - 5 V dc, 24 V dc 0 → 20 mA - 90mm 55mm 87mm
RS Stock No. 746-6564
Mfr. Part No.6ES7321-7BH01-0AB0
BrandSiemens
PHP25,892.31
Each
units
- 16 - Digital - S7-300 Series - - 24 V dc - Input 125mm 40mm 120mm
RS Stock No. 148-060
Mfr. Part No.BMXEHC0200
PHP26,794.74
Each
units
BMX 6 2 Encoder Configurable Modicon M340 6/2 - 24 V dc 2 A - 503.2mm 100mm 150mm
RS Stock No. 434-1850
Mfr. Part No.6ES7231-7PD22-0XA0
BrandSiemens
PHP48,979.50
Each
units
S7-200 4 - Analogue - S7-231 Series - - 24 V dc - Input Module 80mm 71.2mm 62mm
RS Stock No. 746-6713
Mfr. Part No.6ES7360-3AA01-0AA0
BrandSiemens
PHP15,283.14
Each
units
6ES7 Series - - - - S7-300 Series - - - - - - - -
RS Stock No. 455-6939
Mfr. Part No.QY10
BrandMitsubishi
PHP12,278.45
Each
units
MELSEC Q - 16 - Digital, Relay MELSEC Q Series 16 - 24 V dc, 250 V ac - - 98mm 27.4mm 90mm
RS Stock No. 148-105
Mfr. Part No.BMXDRA1605
PHP18,518.70
Each
units
M340 - 16 - Discrete, Relay M340 Series 16 - 24 → 240 V ac, 24 V dc - - - - -
RS Stock No. 508-3959
Mfr. Part No.750600
BrandWago
PHP1,088.90
Each
units
I/O SYSTEM 750 - - - - 750 Series - - - - End Module 100mm 12mm 64mm
RS Stock No. 705-4956
Mfr. Part No.FX3U-3A-ADP
BrandMitsubishi
PHP17,100.80
Each
units
FX3G Series 2 1 Analogue Analogue FX3GPLC 3 - 5 24 V dc - - - - -
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