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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Beskrivning Pris 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-artikelnummer 855-3385
Tillv. art.nr2727378
VarumärkePhoenix Contact
4 529,92 kr
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IB IL 400 ELR R-3A - - - Motor - - - 187 → 440 V ac - - 224mm 63mm 109mm
RS-artikelnummer 890-2976
Tillv. art.nr2080-IQ4OB4
885,34 kr
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- 4 4 - - Micro820, Micro830, Micro850 - - - - - - - -
RS-artikelnummer 455-6923
Tillv. art.nrQX10
VarumärkeMitsubishi
1 949,09 kr
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MELSEC Q 16 - Digital - MELSEC Q Series 16 - 100 → 120 V ac - - 98mm 27.4mm 90mm
RS-artikelnummer 492-963
Tillv. art.nrFX2N-2DA
VarumärkeMitsubishi
4 253,32 kr
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FX1N Series, FX3G Series, FX3U Series - 2 - Analogue FX1N Series, FX3G Series, FX3U Series 2 - 5 V dc, 24 V dc 4 → 20 mA - 90mm 55mm 87mm
RS-artikelnummer 2509667615
Tillv. art.nrAT-FM-2A
VarumärkeBanner Engineering
2 808,13 kr
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RS-artikelnummer 2509665388
Tillv. art.nrATK-VP6
VarumärkeBanner Engineering
4 645,68 kr
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RS-artikelnummer 2509667609
Tillv. art.nrAT-AM-2A
VarumärkeBanner Engineering
3 005,73 kr
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