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 888-8069
製造零件編號G4SWIN
BrandOpto 22
HK$313.57
單位
- - - - - - - - - - - 12.2mm - 48.8mm
RS庫存編號 855-3458
製造零件編號2861454
HK$508.97
單位
IB IL 120 PWR IN-PAC - - - - - - - 108 → 135 V ac - - 119.8mm 36.6mm 71.5mm
RS庫存編號 806-7054
製造零件編號TM3TM3
HK$2,242.24
單位
TM3 Series 2 1 Current, Temperature, Voltage Current, Voltage Modicon M221, Modicon M241, Modicon M251 3 - -10 → 10 V dc 0 → 20 mA - 90mm 23.6mm 70mm
全新
RS庫存編號 203-4074
製造零件編號6ES7135-6HB00-0DA1
BrandSiemens
HK$2,541.10
單位
6ES7135 - 2 - Analogue - - - 24 V DC 20 mA - - - -
RS庫存編號 783-0224
製造零件編號IDC-5
HK$158.73
單位
IDC - - Digital - - 1 - - - - 43.2mm 15.2mm 31.8mm
RS庫存編號 196-1255
製造零件編號2700074
HK$5,173.31
單位
- 8 4 Digital Digital INTERBUS 4 (Digital Output), 8 (Digital Input) - 5 V 500 mA - 164mm 136.8mm 71.5mm
RS庫存編號 528-0582
製造零件編號2863562
HK$5,267.60
單位
ILB PB 24 DI 8 DIO8 8 8 Digital Digital Profibus Series 16 - 24 V dc 500 mA - 141.1mm 95mm 57mm
全新
RS庫存編號 203-3796
製造零件編號6ES7531-7QD00-0AB0
BrandSiemens
HK$2,966.30
單位
SIMATIC S7-1500 4 - Analog - - - - 24 V DC 20 mA - - - -
RS庫存編號 806-7042
製造零件編號TM3AM6
HK$3,648.04
單位
TM3 Series 4 2 Current, Voltage Current, Voltage Modicon M221, Modicon M241, Modicon M251 6 - -10 → 10 V dc 0 → 20 mA - 90mm 23.6mm 70mm
全新
RS庫存編號 203-2883
製造零件編號6ES7521-1BL10-0AA0
BrandSiemens
HK$2,986.55
單位
SIMATIC S7-1500 32 - Digital - - - - 24 V DC - - - - -
RS庫存編號 875-5705
製造零件編號FX5-16EYR/ES
BrandMitsubishi
HK$2,310.88
單位
FX5 - 16 - Relay, Transistor FX5U CPU Module, FX5UC CPU Module - - - - Output 40mm 90mm 83mm
RS庫存編號 196-3678
製造零件編號6GK54088GS002AM2
BrandSiemens
HK$26,241.13
單位
6GK5408 - - - - - - Ethernet 19.2 → 28.8 V dc - - 140mm 147mm 125mm
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 888-8280
製造零件編號ODC5Q
BrandOpto 22
HK$736.66
單位
- - 4 - DC Voltage - 4 - 5 → 60 V dc 3 A DC Output 53.34mm 26.9mm 78.23mm
RS庫存編號 146-052
製造零件編號GRT1-ROS2
BrandOmron
HK$1,783.19
單位
GRT1 Series - 2 - - DeviceNet Communication 2 - - - - - - -
RS庫存編號 893-0678
製造零件編號1315240000
BrandWeidmuller
HK$567.54
單位
- - 8 - Digital - 8 - - 4 (Per Module) A, 500 (Per Channel) mA Digital Output 120mm 11.5mm 76mm
全新
RS庫存編號 203-2810
製造零件編號6ES7521-1BH10-0AA0
BrandSiemens
HK$1,964.04
單位
SIMATIC S7-1500 16 - Digital - - - - 24 V DC - - - - -
RS庫存編號 888-7931
製造零件編號G4ODC24A
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 467-781
製造零件編號6GK5786-1BB60-2AA0
BrandSiemens
HK$16,014.32
單位
6GK5 786 - - - - - 3 - 48 V dc - - - - -
RS庫存編號 135-5205
製造零件編號140AVI03000
HK$16,450.72
單位
- 8 - Analogue - Modicon PLC - - 0 → 10 V - Input - - -