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 467-719
製造零件編號6GK5747-1AA30-6AA0
BrandSiemens
HK$8,282.25
單位
6GK5 747 - - - - - 5 - 24 V dc, 48 V dc - - - - -
RS庫存編號 770-2472
製造零件編號TM5SAI2TH
HK$3,010.00
單位
TM5 2 - Analogue - Modicon LMC058, Modicon M258 - - 24 V dc 30 mA - 99mm 12.5mm 75mm
RS庫存編號 893-7834
製造零件編號2701956
HK$8,962.43
單位
IB STME 24 BAI 8/EF 8 - Analogue Voltage - - 8 - 0 → 50 V dc - Analogue Input 118mm 116mm 117mm
RS庫存編號 674-1930
製造零件編號TM2ARI8HT
HK$2,367.00
單位
XBT GC 8 - Analogue - XBT GC Series 8 - 24 V dc - - - - -
RS庫存編號 763-1086
製造零件編號EU5E-SWD-X8D
BrandEaton
HK$1,080.00
單位
- - 8 - Digital, Semiconductor SmartWire-DT - - 24 V dc 500 mA - 90mm 35mm 101mm
RS庫存編號 889-1009
製造零件編號SNAP-ODC-32-SNK
BrandOpto 22
HK$3,497.58
單位
SNAP - 32 - Digital DC Voltage SNAP PAC System 32 - 5 → 60 V dc 250 mA Digital DC Output 82.55mm 18.29mm 82.8mm
RS庫存編號 855-3502
製造零件編號2861920
HK$387.57
單位
IB IL DO 1 AC-PAC - 1 - Digital - - - - - - 119.8mm 12.2mm 71.5mm
RS庫存編號 855-3515
製造零件編號2862084
HK$2,649.60
單位
IB IL RS 232-2MBD-PAC - - - - - - - 19.2 → 30 V dc - - 136.8mm 24.4mm 71.5mm
RS庫存編號 855-3284
製造零件編號2701009
HK$687.59
單位
IB IL 24 DO 4/EF-PAC - 4 - Digital - - - - 2 A - 119.8mm 12.2mm 71.5mm
RS庫存編號 662-3674
製造零件編號6ES7138-4CA50-0AB0
BrandSiemens
HK$348.10
單位
SIMATIC ET 200S - - - Current, Potential, Voltage SIMATIC ET 200S Series - - 24 → 48 V dc - Power Module - - -
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 855-1373
製造零件編號2862987
HK$216.95
單位
IB IL PD 24V-PAC - - - - - - - 19.2 → 30 V dc - - 119.8mm 12.2mm 71.5mm
RS庫存編號 855-3325
製造零件編號2701162
HK$332.80
單位
IB IL 24 PWR IN/2-F-XC-PAC - - - - - - - - - - 119.8mm 12.2mm 71.5mm
RS庫存編號 806-6957
製造零件編號TM3DQ16R
HK$1,524.84
單位
TM3 Series - 16 - Relay Modicon M221, Modicon M241, Modicon M251 - - 24 → 240 V 2 A - 90mm 23.6mm 70mm
RS庫存編號 623-7719
製造零件編號VBA-4E3A-G2-ZA/EA2
HK$1,639.88
單位
- 4 3 - - - 7 - 20 → 30 V dc - - 150mm 18.7mm 60mm
RS庫存編號 893-0690
製造零件編號1315600000
BrandWeidmuller
HK$1,487.99
單位
- - 2 - Digital - 2 - - 1 (Per Module) A, 500 (Per Channel) mA Digital Output 120mm 11.5mm 76mm
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 662-3583
製造零件編號6ES7135-4FB01-0AB0
BrandSiemens
HK$1,250.00
單位
SIMATIC ET 200S - 2 - Analogue SIMATIC ET 200S Series 2 - 24 V dc 25 mA - 81mm 15mm 52mm
RS庫存編號 855-3518
製造零件編號2862013
HK$1,850.35
單位
IB IL 24 DO 16-2MBD-PAC - 16 - Digital - - - - 8 A - 140.5mm 48.8mm 71.5mm
RS庫存編號 855-3287
製造零件編號2700893
HK$5,878.63
單位
IB IL RS UNI-PAC - - - - - - - 19.2 → 30 V dc - - 135mm 24.4mm 71.5mm