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$145.73
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 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 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 888-7515
製造零件編號AD3T
BrandOpto 22
HK$1,813.56
單位
- - - Analogue Current - - 1 - - - Analogue Input - - -
RS庫存編號 888-8261
製造零件編號ODC15A
BrandOpto 22
HK$237.74
單位
- - - - - - - - - - - 15.2mm - 43.2mm
RS庫存編號 889-1687
製造零件編號SNAP-PAC-SB2
BrandOpto 22
HK$5,262.56
單位
SNAP PAC - - - - SNAP PAC System 32 - - - Analogue, Digital 83.82mm 46.46mm 108.59mm
RS庫存編號 889-1615
製造零件編號SNAP-PAC-R1
BrandOpto 22
HK$11,253.79
單位
SNAP PAC R - - - - SNAP PAC System - - - - Analogue, Digital 84.15mm 44.44mm 106.37mm
RS庫存編號 888-8114
製造零件編號IAC24A
BrandOpto 22
HK$161.92
單位
- - - Digital AC Voltage, Digital DC Voltage Digital - - - 180 → 280 V ac/dc 50 mA Digital AC Input, Digital DC Input 43.2mm 15.2mm 31.8mm
RS庫存編號 888-7931
製造零件編號G4ODC24A
BrandOpto 22
HK$178.12
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 889-1012
製造零件編號SNAP-ODC-32-SRC
BrandOpto 22
HK$3,404.47
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 888-7827
製造零件編號G4IAC5
BrandOpto 22
HK$145.73
單位
G4 - - Digital AC Voltage Digital - - - 90 → 140 V ac/dc 50 (Sinking) mA Digital AC Input 48.8mm 12.2mm 41.1mm
RS庫存編號 889-0775
製造零件編號SNAP-D64RS
BrandOpto 22
HK$1,991.68
單位
SNAP - - - - SNAP I/O Modules - - - - - 387.35mm 112.01mm 12.7mm
RS庫存編號 888-7971
製造零件編號G4PB16H
BrandOpto 22
HK$1,198.24
單位
G4 - - - - G4 I/O Modules 16 - - - - 274.8mm 82.6mm 58.9mm
RS庫存編號 888-7388
製造零件編號240D45
BrandOpto 22
HK$453.39
單位
Power Solid State Relay Unit - - - 24 → 240 V ac - - - 24 → 240 V ac - Solid State Relay 44.5mm 57.2mm 24.5mm
RS庫存編號 888-7476
製造零件編號AD10T2
BrandOpto 22
HK$2,072.64
單位
- - - RTD Digital - 1 - - - Analogue Input - - -
RS庫存編號 889-0905
製造零件編號SNAP-IDC5-FAST-A
BrandOpto 22
HK$755.85
單位
- - - - - - - - - - - 18.29mm - 82.55mm
RS庫存編號 889-0735
製造零件編號SNAP-B8M
BrandOpto 22
HK$1,376.36
單位
SNAP B - - - - SNAP I/O Modules - - - - - 234.7mm 99.31mm 12.7mm
RS庫存編號 889-0851
製造零件編號SNAP-IAC5A
BrandOpto 22
HK$691.05
單位
- - - - - - - - - - - 18.29mm - 82.55mm
RS庫存編號 889-0987
製造零件編號SNAP-OAC5
BrandOpto 22
HK$518.16
單位
SNAP - 4 - Digital AC Voltage SNAP PAC System 4 - 12 → 250 V ac 3 A Digital AC Output 82.55mm 18.29mm 90.17mm
RS庫存編號 888-7978
製造零件編號G4PB16
BrandOpto 22
HK$1,117.28
單位
G4 - - - - G4 I/O Modules 16 - - - - 254mm 82.6mm 58.9mm