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 818-4241
製造零件編號CJ1WMD232
BrandOmron
HK$4,179.24
單位
CJ1W-MD 16 16 Voltage Transistor CJ/NJ Controllers 16 (Input), 16 (Output) - 24 V dc 500 mA - 95.4mm 31mm 83.6mm
RS庫存編號 855-1354
製造零件編號2862149
HK$6,477.65
單位
IB IL AI 2-HART-PAC 2 - Analogue - - - - 24 V dc - - 135mm 48.8mm 71.5mm
RS庫存編號 696-2119
製造零件編號2313452
HK$6,022.51
單位
FL COMSERVER UNI 232/422/485 - - - - - - - 28 V dc, 240 V ac - - 86mm 12.3mm 96mm
RS庫存編號 467-769
製造零件編號6GK5786-2BA60-2AB0
BrandSiemens
HK$15,938.67
單位
6GK5 786 - - - - - 3 - 12 24 V dc, 100 240 V ac - - 251mm 251mm 72mm
RS庫存編號 662-3687
製造零件編號6ES7193-4CD20-0AA0
BrandSiemens
HK$97.24
單位
- - - - - ET200S Series 6 - - - - 132mm 15mm 43mm
RS庫存編號 467-804
製造零件編號6GK5786-2AA60-2AA0
BrandSiemens
HK$15,670.74
單位
6GK5 786 - - - - - 7 - 12 24 V dc, 100 240 V ac - - 251mm 251mm 72mm
RS庫存編號 609-8659
製造零件編號TSXDMZ28DTK
HK$6,118.77
單位
Modicon TSX Micro 16 12 (Solid State) Discrete Discrete Modicon TSX 28 - 24 V dc 500 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 662-3549
製造零件編號6ES7132-4HB01-0AB0
BrandSiemens
HK$2,150.72
單位
SIMATIC ET 200S - 2 - Digital SIMATIC ET 200S Series 2 - 24 120 V dc, 24 230 V ac 5 A - 81mm 15mm 52mm
RS庫存編號 855-3284
製造零件編號2701009
HK$808.46
單位
IB IL 24 DO 4/EF-PAC - 4 - Digital - - - - 2 A - 119.8mm 12.2mm 71.5mm
RS庫存編號 893-6702
製造零件編號1315710000
BrandWeidmuller
HK$3,863.81
單位
- 4 - Analogue Temperature - - 4 - - - Analogue Input 120mm 11.5mm 76mm
RS庫存編號 662-3606
製造零件編號6ES7151-1CA00-3BL0
BrandSiemens
HK$6,292.00
單位
SIMATIC ET 200S 16 16 Digital Digital SIMATIC ET 200S Series 32 - 24 V dc 500 mA - 81mm 120mm 58mm
RS庫存編號 855-3322
製造零件編號2701161
HK$316.19
單位
IB IL 24 PWR IN-XC-PAC - - - - - - - - - - 119.8mm 12.2mm 71.5mm
RS庫存編號 828-5252
製造零件編號6ES7231-4HD32-0XB0
BrandSiemens
HK$2,023.27
單位
6ES7231 4 - Analogue - SIMATIC S7-1200 4 - 24 V dc - - 100mm 45mm 75mm
RS庫存編號 888-7852
製造零件編號G4IDC5K
BrandOpto 22
HK$196.08
單位
G4 - - Digital DC Voltage Digital - - - 2.5 16 V dc 50 (Sinking) mA Digital DC Input 48.8mm 12.2mm 41.1mm
RS庫存編號 787-7958
製造零件編號6ES7222-1BH32-0XB0
BrandSiemens
HK$1,540.19
單位
SM 1222 - 16 Digital Digital SIMATIC S7-1200 Series - - 24 V dc 500 mA - 100mm 45mm 75mm
RS庫存編號 770-2479
製造零件編號TM5SAI4LK
HK$3,290.00
單位
TM5 - - - - M258 PLC Series - - - - - - - -
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 739-6768
製造零件編號AC2216
HK$2,706.80
單位
Ecomot300 AS - I Module 4 - Analogue - Ecomot300 AS-I Module 4 - 26.5 31.6 V dc - - - - -
RS庫存編號 806-6979
製造零件編號TM3DQ16TK
HK$1,739.81
單位
TM3 Series - 16 - Source, Transistor Modicon M221, Modicon M241, Modicon M251 - - 24 V 100 mA - 90mm 17.6mm 70mm