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 467-771
製造零件編號6GK5786-2AB60-2AA0
BrandSiemens
HK$18,751.42
單位
6GK5 786 - - - - - 11 - 12 24 V dc, 100 240 V ac - - 251mm 251mm 72mm
RS庫存編號 148-111
製造零件編號BMXDRA0805
HK$1,959.00
單位
M340 - 8 - Discrete, Relay M340 Series 8 - 24 240 V ac, 24 V dc - - - - -
RS庫存編號 855-3470
製造零件編號2861690
HK$1,163.75
單位
IB IL 24 DI8-2MBD-PAC 8 - Digital - - - - - - - 119.5mm 48.8mm 71.5mm
RS庫存編號 770-2441
製造零件編號TM5NCO1
HK$1,360.00
單位
- - - - - - - - - - - - - -
RS庫存編號 467-747
製造零件編號6GK5784-1AA30-2AB0
BrandSiemens
HK$10,447.24
單位
6GK5 784 - - - - - 3 - 24 V dc, 48 V dc - - 205mm 100mm 20mm
RS庫存編號 855-3338
製造零件編號2701165
HK$4,845.36
單位
IB IL AI/TEMP 4 RTD-XC-PAC - - - - - - - - - - 140.5mm 12.2mm 71.5mm
RS庫存編號 710-6341
製造零件編號2313643
HK$9,881.59
單位
PSI-MODEM-SHDSL/ETH - - - - - - - 28 V dc, 240 V ac - - 86mm 12.3mm 96mm
RS庫存編號 147-972
製造零件編號BMXDDM3202K
HK$3,523.52
單位
M340 16 16 Discrete Discrete, Transistor M340 Series 32 - 24 V dc - - - - -
RS庫存編號 893-0643
製造零件編號1394400000
BrandWeidmuller
HK$1,269.96
單位
- 8 - Digital Voltage - - 8 - 24 V - Digital Input 120mm 11.5mm 76mm
RS庫存編號 893-7795
製造零件編號2700684
HK$4,817.59
單位
AXL F DI8/2 110/220DC 1F 8 - Digital Voltage - Axioline F Station 8 - 110/220 V dc - Digital Input 53.6mm 126.1mm 54mm
RS庫存編號 818-4235
製造零件編號CJ1WID212
BrandOmron
HK$3,229.41
單位
CJ1W-ID 16 - Voltage - CJ/NJ Controllers 16 (Input) - 24 V dc - - 95.4mm 31mm 89mm
RS庫存編號 855-1408
製造零件編號2869911
HK$3,311.56
單位
IB IL EX-IS DIO 4/NAM-PAC 4 4 Digital Digital - - - - - - 119.8mm 48.8mm 71.5mm
RS庫存編號 787-7942
製造零件編號6ES7221-1BF32-0XB0
BrandSiemens
HK$991.53
單位
SM 1221 8 - Digital Digital SIMATIC S7-1200 Series - - 24 V dc - - 100mm 45mm 75mm
RS庫存編號 888-8151
製造零件編號IDC5D
BrandOpto 22
HK$161.92
單位
- - - Digital DC Voltage Digital - - - 2.5 28 V dc 50 mA Digital DC Input 43.2mm 15.2mm 31.8mm
RS庫存編號 467-670
製造零件編號6GK5786-3AA60-2AB0
BrandSiemens
HK$18,751.42
單位
6GK5 786 - - - - - 10 - 12 24 V dc, 100 240 V ac - - 251mm 251mm 72mm
RS庫存編號 855-1389
製造零件編號2863779
HK$539.09
單位
IB IL 24 PWR IN/2F-DF-PAC - - - - - - - - - - 119.8mm 12.2mm 71.5mm
RS庫存編號 806-6991
製造零件編號TM3DQ8U
HK$970.36
單位
TM3 Series - 8 - Transistor Modicon M221, Modicon M241, Modicon M251 - - 24 V 500 mA - 90mm 23.6mm 70mm
RS庫存編號 810-4144
製造零件編號6ES7223-1QH32-0XB0
BrandSiemens
HK$2,158.98
單位
SM 1223 8 8 Digital Digital, Relay - 8 - 230 V 2 A - 100mm 45mm 75mm
RS庫存編號 806-6950
製造零件編號TM3DQ16RG
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 888-7868
製造零件編號G4IDC5-SW
BrandOpto 22
HK$441.76
單位
G4 - - Digital DC Voltage Digital - 1 - - - Digital DC Input 48.8mm 12.2mm 41.1mm