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 855-1360
製造零件編號2862194
HK$4,227.16
單位
IB IL AO 2/SF-2MBD-PAC - 2 - Analogue - - - 24 V dc - - 136.8mm 48.8mm 71.5mm
RS庫存編號 806-7017
製造零件編號TM3DI8A
HK$1,593.66
單位
TM3 Series 8 - Digital - Modicon M221, Modicon M241, Modicon M251 - - 120 V - - 90mm 23.6mm 70mm
RS庫存編號 827-3833
製造零件編號170AAI03000
HK$10,515.63
單位
- 8 - Analogue - Modicon Momentum - - 1 5 V - Input 125mm 141.5mm 47.5mm
RS庫存編號 806-6954
製造零件編號TM3DQ8T
HK$1,593.66
單位
TM3 Series - 8 - Source, Transistor Modicon M221, Modicon M241, Modicon M251 - - 24 V 500 mA - 90mm 23.6mm 70mm
RS庫存編號 667-9239
製造零件編號750-431
BrandWago
HK$567.62
單位
I/O SYSTEM 750 8 (Channel) - Digital - 750 Series - - 24 V dc - Input Module 100mm 12mm 64mm
RS庫存編號 662-3678
製造零件編號6ES7151-3AA23-0AB0
BrandSiemens
HK$3,168.88
單位
ET200S - - - - ET200S Series - - 24 V dc - Interface Module 119.5mm 60mm 75mm
RS庫存編號 770-2463
製造零件編號TM5SAI2PH
HK$4,412.42
單位
TM5 2 - Analogue - Modicon LMC058, Modicon M258 - - 24 V dc 46 mA - 99mm 12.5mm 75mm
RS庫存編號 548-066
製造零件編號BMXAMM0600
HK$6,823.60
單位
Modicon M340 Series 4 2 Analogue Analogue Modicon M340 6 - 24 V dc 0 20 mA Mixed Analogue I/O Module 307.6mm 100mm 140mm
RS庫存編號 615-0123
製造零件編號88970270
BrandCrouzet
HK$1,645.64
單位
- - - - - - - - 24 V dc - - - - -
RS庫存編號 889-0882
製造零件編號SNAP-IDC-32-FM
BrandOpto 22
HK$4,391.24
單位
- - - - - - - - - - - 18.29mm - 82.55mm
RS庫存編號 783-0221
製造零件編號IAC5
HK$151.88
單位
IAC - - Digital - - 1 - 90 140 V ac/dc - - 43.2mm 15.2mm 31.8mm
RS庫存編號 855-3486
製造零件編號2861768
HK$3,910.55
單位
IB IL IMPULSE-IN-PAC - - - - - - - - - - 135mm 12.2mm 71.5mm
RS庫存編號 145-857
製造零件編號GRT1-AD2
BrandOmron
HK$4,674.53
單位
GRT1 Series 2 - Analogue - - 2 - - - - - - -
RS庫存編號 770-2501
製造零件編號TM5SBER2
HK$1,420.00
單位
- - - - - - - - - - - - - -
RS庫存編號 893-0628
製造零件編號1334870000
BrandWeidmuller
HK$4,476.78
單位
U-remote - - - - Remote I/O - - - - Fieldbus Coupler 52mm 76mm 120mm
RS庫存編號 770-2431
製造零件編號TM5C12D6T6L
HK$8,620.00
單位
TM5 16 8 Analogue, Digital Analogue, Digital, Transistor Modicon LMC058, Modicon M258 - - 24 V dc 3 A - 99mm 62.5mm 75mm
RS庫存編號 719-1948
製造零件編號750-559
BrandWago
HK$1,731.89
單位
I/O SYSTEM 750 - 4 (Channel) - Analogue 750 Series - - 0 10 V - Output Module 100mm 12mm 64mm
RS庫存編號 855-1345
製造零件編號2862136
HK$385.07
單位
IB IL 24 PWR IN/2-F-PAC - - - - - - - 19.2 → 30 V dc - - 119.8mm 12.2mm 71.5mm
RS庫存編號 888-8586
製造零件編號SNAP-AIRTD
BrandOpto 22
HK$2,930.84
單位
SNAP 2 - Analogue RTD - SNAP PAC System 2 - - - Analogue Input 82.55mm 18.29mm 90.17mm
RS庫存編號 763-1058
製造零件編號EU5C-SWD-DP
BrandEaton
HK$2,407.66
單位
- - - - - SmartWire-DT - - 24 V dc - - 90mm 35mm 127mm