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 888-7846
製造零件編號G4IDC5D
BrandOpto 22
HK$147.00
單位
G4 - - Digital DC Voltage Digital - - - 2.5 → 28 V dc 50 (Sinking) mA Digital DC Input 48.8mm 12.2mm 41.1mm
RS庫存編號 889-0735
製造零件編號SNAP-B8M
BrandOpto 22
HK$1,268.65
單位
SNAP B - - - - SNAP I/O Modules - - - - - 234.7mm 99.31mm 12.7mm
RS庫存編號 889-1687
製造零件編號SNAP-PAC-SB2
BrandOpto 22
HK$5,310.79
單位
SNAP PAC - - - - SNAP PAC System 32 - - - Analogue, Digital 83.82mm 46.46mm 108.59mm
RS庫存編號 889-1047
製造零件編號SNAP-ODC5RFM
BrandOpto 22
HK$1,125.35
單位
- - - - - - - - - - - 18.29mm - 82.55mm
RS庫存編號 888-8063
製造零件編號G4SWOUT
BrandOpto 22
HK$411.61
單位
- - - - - - - - - - - 12.2mm - 48.8mm
RS庫存編號 888-7940
製造零件編號G4ODC5
BrandOpto 22
HK$145.39
單位
G4 - - DC Digital Digital DC Voltage - - - 5 → 60 V dc 3 A Digital DC Output 48.8mm 12.2mm 41.1mm
RS庫存編號 888-8221
製造零件編號OAC24A
BrandOpto 22
HK$160.69
單位
- 1 1 Digital Digital AC Voltage - - - 24 → 280 V ac 3 A Digital AC Output 43.2mm 15.2mm 31.8mm
RS庫存編號 888-7984
製造零件編號G4PB16I
BrandOpto 22
HK$1,389.16
單位
G4 - - - - G4 I/O Modules 16 - - - - 228.6mm 101.6mm 58.9mm
RS庫存編號 889-0915
製造零件編號SNAP-IDC5MA
BrandOpto 22
HK$1,811.52
單位
- - - - - - - - - - - 18.29mm - 82.55mm
RS庫存編號 889-1025
製造零件編號SNAP-ODC5-I
BrandOpto 22
HK$533.25
單位
SNAP - 4 - Digital DC Voltage SNAP PAC System 4 - 5 → 60 V dc 3 A Digital DC Output 82.55mm 18.29mm 90.17mm
RS庫存編號 888-7353
製造零件編號240A45
BrandOpto 22
HK$473.84
單位
Power - - - AC Output - - - 24 → 280 V ac - Solid State Relay 44.5mm 57.2mm 24.5mm
RS庫存編號 888-7943
製造零件編號G4ODC5A
BrandOpto 22
HK$179.72
單位
G4 - - DC Digital Digital DC Voltage - - - 5 → 200 V dc 1 A Digital DC Output 48.8mm 12.2mm 41.1mm
RS庫存編號 889-1778
製造零件編號SNAP-SCM-PROFI
BrandOpto 22
HK$3,208.26
單位
SNAP - - - - SNAP PAC System 1 - - - Serial Communication 82.55mm 18.26mm 75.85mm
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 889-1040
製造零件編號SNAP-ODC5R5
BrandOpto 22
HK$1,042.98
單位
- - - - - - - - - - - 18.29mm - 82.55mm
RS庫存編號 889-0902
製造零件編號SNAP-IDC5FAST
BrandOpto 22
HK$521.57
單位
- - - - - - - - - - - 18.29mm - 82.55mm
RS庫存編號 888-7903
製造零件編號G4OAC5A
BrandOpto 22
HK$159.36
單位
G4 1 1 Digital Digital AC Voltage - - - 24 → 280 V ac 3 A Digital AC Output 48.8mm 12.2mm 41.1mm
RS庫存編號 888-7587
製造零件編號DA4T
BrandOpto 22
HK$1,748.49
單位
- - - - Digital to Voltage - - - 0 → 5 V dc 25 mA - - - -
RS庫存編號 889-0918
製造零件編號SNAP-IDC5G
BrandOpto 22
HK$878.13
單位
- - - - - - - - - - - 18.29mm - 82.55mm
RS庫存編號 889-0889
製造零件編號SNAP-IDC-32DN
BrandOpto 22
HK$3,814.90
單位
- - - - - - - - - - - 18.29mm - 82.55mm