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庫存編號 136-2796
製造零件編號NXAD2203
BrandOmron
HK$1,614.80
單位
NX 2 - Analogue - CJ PLC, EtherCAT Coupler Unit, NX Series CPU Unit 2 (Input) - - - Input 12mm 71mm 100mm
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RS庫存編號 190-2102
製造零件編號2884208
HK$20,301.74
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ILB BT ADIO 2 (Analogue), 16 (Digital) 2 (Analogue), 16 (Digital) Analogue, Digital Analogue, Digital - 2(Analogue Input), 2(Analogue Output), 16 (Digital Input), 16(Digital Output) - 24 V dc 500(per Channel) mA Wireless 95mm 57mm 123.4mm
RS庫存編號 136-2795
製造零件編號NXOD4256
BrandOmron
HK$609.95
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NX - 8 - Digital CJ PLC, EtherCAT Coupler Unit, NX Series CPU Unit 8 (Output) - 24 V dc 400 mA Output 12mm 71mm 100mm
RS庫存編號 2509665388
製造零件編號ATK-VP6
HK$5,003.04
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RS庫存編號 2509667615
製造零件編號AT-FM-2A
HK$2,732.09
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