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 855-3366
製造零件編號2701218
HK$5,839.16
單位
IB IL TEMP 4/8 RTD-EF-XC-PAC 8 - Analogue - - - - 24 V dc - - 136.8mm 48.8mm 71.5mm
RS庫存編號 893-0634
製造零件編號1334910000
BrandWeidmuller
HK$2,841.52
單位
U-remote - - - - Remote I/O - - - - Fieldbus Coupler 52mm 76mm 120mm
RS庫存編號 855-3344
製造零件編號2701214
HK$1,077.12
單位
IB IL 24/48 DOR 2/W-XC-PAC - 2 - Relay - - - - 4 A - 119.8mm 12.2mm 71.5mm
RS庫存編號 893-0665
製造零件編號1315220000
BrandWeidmuller
HK$349.52
單位
- - 4 - Digital - 4 - - 2 (Per Module) A, 500 (Per Channel) mA Digital Output 120mm 11.5mm 76mm
RS庫存編號 763-1061
製造零件編號EU5C-SWD-EIP-MODTCP
BrandEaton
HK$3,230.00
單位
- - - - - SmartWire-DT - - 24 V dc - - 90mm 35mm 124mm
RS庫存編號 479-6446
製造零件編號EASY204-DP
BrandEaton
HK$2,760.00
單位
- - - - - Easy 700 Series, Easy 800 Series, EC4P, ES4P, MFD-CP8 - - 24 V - - 35.5mm 90mm 62mm
RS庫存編號 662-3592
製造零件編號6ES7132-4BF00-0AA0
BrandSiemens
HK$487.25
單位
SIMATIC ET 200S - 8 - Digital SIMATIC ET 200S Series 8 - 24 V dc 500 mA - 81mm 15mm 52mm
RS庫存編號 806-7036
製造零件編號TM3AQ2G
HK$1,663.42
單位
TM3 Series - 2 - Current, Voltage Modicon M221, Modicon M241, Modicon M251 - - -10 → 10 V dc 0 → 20 mA - 90mm 23.6mm 70mm
RS庫存編號 468-5778
製造零件編號6ES7222-1BD22-0XA0
BrandSiemens
HK$2,723.30
單位
SIMATIC S7-200 Series - 4 - Digital SIMATIC S7-200 Series - - 24 V dc - Output Module - - -
RS庫存編號 253-2313
製造零件編號TSXDSZ08R5
HK$1,875.34
單位
Modicon TSX Micro - 8 (Channel) - Discrete, Relay Modicon TSX 8 - 24 V dc 1 A - - - -
RS庫存編號 770-2444
製造零件編號TM5C24D12R
HK$3,930.00
單位
TM5 24 12 Digital Relay Modicon LMC058, Modicon M258 - - 24 V dc 2 A - 99mm 62.5mm 75mm
RS庫存編號 806-7014
製造零件編號TM3AI2HG
HK$1,663.42
單位
TM3 Series 2 - Current, Voltage - Modicon M221, Modicon M241, Modicon M251 - - -10 → 10 V dc - - 90mm 23.6mm 70mm
RS庫存編號 815-5833
製造零件編號AFP8532
BrandPanasonic
HK$4,223.85
單位
AFP85 Series - - - - FP0R Series - - 24 V dc - - - - -
RS庫存編號 855-3482
製造零件編號2861713
HK$362.60
單位
IB IL 24 DI2-2MBD-PAC 2 - Digital - - - - - - - 119.5mm 12.2mm 71.5mm
RS庫存編號 855-3369
製造零件編號2701219
HK$1,682.70
單位
IB IL AO 1/SF-XC-PAC - 1 - Analogue - - - 24 V dc - - 135mm 24.4mm 71.5mm
RS庫存編號 770-2567
製造零件編號TM5SE1IC01024
HK$2,250.00
單位
- - - - - - - - - - - - - -
RS庫存編號 739-6759
製造零件編號AC2252
HK$761.51
單位
Ecomot300 AS - I Module - 4 - Digital, Transistor Ecomot300 AS-I Module 4 - 26.5 → 31.6 V dc 1 (4 Channel) A - - - -
RS庫存編號 855-3381
製造零件編號2727365
HK$2,193.96
單位
IB IL 400 MLR 1-8A 2 - - Motor - - - 187 → 600 V ac - - 224mm 63mm 109mm
RS庫存編號 855-3259
製造零件編號2692306
HK$537.57
單位
IB IL 24 DI 4-2MBD-PAC 4 - Digital - - - - - - - 140.5mm 12.2mm 71.5mm
RS庫存編號 855-3350
製造零件編號2701215
HK$4,057.68
單位
IB IL AI 4/EF-XC-PAC 4 - Analogue - - - - 24 V dc - - 136.8mm 48.8mm 71.5mm