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 889-0905
製造零件編號SNAP-IDC5-FAST-A
BrandOpto 22
HK$960.50
單位
- - - - - - - - - - - 18.29mm - 82.55mm
RS庫存編號 147-994
製造零件編號BMXART0414
HK$5,270.00
單位
M340 4 - Analogue - M340 Series 4 - 24 V dc - - - - -
RS庫存編號 893-0684
製造零件編號1315540000
BrandWeidmuller
HK$1,987.02
單位
- - - - Digital - - - - 1 (Per Channel) A, 4 (Per Module) A Digital Output 120mm 11.5mm 76mm
RS庫存編號 510-1710
製造零件編號CJ1W-AD041
BrandOmron
HK$5,794.36
單位
SYSMAC CJ Series, SYSMAC CP1H, SYSMAC CP1L 4 - Analogue - SYSMAC CJ Series, SYSMAC CP1H Series, SYSMAC CP1L Series 4 - -10 10 V, 0 10 V, 0 5 V, 1 5 V - - 90mm 31mm 65mm
RS庫存編號 667-9233
製造零件編號750-432
BrandWago
HK$342.36
單位
I/O SYSTEM 750 4 (Channel) - Digital - 750 Series - - 24 V dc - Input Module 100mm 12mm 64mm
RS庫存編號 855-3509
製造零件編號2861988
HK$1,227.42
單位
IB IL 24 DO 4-2MBD-PAC - 4 - Digital - - - - 2 A - 140.5mm 12.2mm 71.5mm
RS庫存編號 770-2520
製造零件編號TM5SDI6U
HK$1,450.00
單位
TM5 6 - Digital - Modicon LMC058, Modicon M258 - - 100 120 V ac - - 99mm 12.5mm 75mm
RS庫存編號 893-6742
製造零件編號1334710000
BrandWeidmuller
HK$777.31
單位
- - - - - - - - - - I/O Module 120mm 11.5mm 76mm
RS庫存編號 770-2536
製造零件編號TM5SDO2R
HK$800.00
單位
TM5 - 2 - Digital, Relay Modicon LMC058, Modicon M258 - - 24 36 V dc, 184 276 V ac 10 A - 99mm 12.5mm 75mm
RS庫存編號 855-3313
製造零件編號2701160
HK$4,623.17
單位
IB IL CAN-MA-XC-PAC - - - - - - - - - - - - -
RS庫存編號 855-3280
製造零件編號2700965
HK$5,356.68
單位
IB IL PM 3P/N/EF-PAC - - - - - - - - - - 119.8mm 48.8mm 71.5mm
RS庫存編號 147-887
製造零件編號BMXDDM16025
HK$2,150.72
單位
M340 8 8 Discrete Discrete, Relay M340 Series 16 - 24 V dc - - - - -
RS庫存編號 667-9245
製造零件編號750-469/003-000
BrandWago
HK$2,459.92
單位
I/O SYSTEM 750 2 (Channel) - Analogue - 750 Series - - - - Input Module 100mm 12mm 64mm
RS庫存編號 835-8827
製造零件編號FC4A-M24BR2
BrandIdec
HK$3,103.21
單位
FC4A 16 8 Sink/Source Relay FC4A Series PLC 24 - 20.4 28.8 V dc 7 A - 42.9mm 90mm 71mm
RS庫存編號 888-7978
製造零件編號G4PB16
BrandOpto 22
HK$1,127.53
單位
G4 - - - - G4 I/O Modules 16 - - - - 254mm 82.6mm 58.9mm
RS庫存編號 455-6838
製造零件編號QY80
BrandMitsubishi
HK$1,895.91
單位
MELSEC Q - 16 - Transistor MELSEC Q Series - - 12 24 V dc - Output Module 98mm 27.4mm 90.17mm
RS庫存編號 539-5000
製造零件編號SR3MBU01BD
HK$1,166.88
單位
SR3 4 4 - Relay - - - 24 V dc - - 107.6mm 35.5mm 59.5mm
RS庫存編號 510-9219
製造零件編號701550(3041/3046)/4 (Analogausgang)
BrandJumo
HK$707.91
單位
- - 1 - Analogue 703041 Series, 703042 Series, 703043 Series, 703044 Series - - - - Analogue Output - - -
RS庫存編號 855-3385
製造零件編號2727378
HK$3,317.93
單位
IB IL 400 ELR R-3A - - - Motor - - - 187 440 V ac - - 224mm 63mm 109mm
RS庫存編號 148-206
製造零件編號BMXDDI3202K
HK$2,994.21
單位
M340 32 - Discrete - M340 Series 32 - 24 V dc - - - - -