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 512-5902
製造零件編號CJ1W-OD212
BrandOmron
HK$1,911.00
單位
SYSMAC CJ Series - 16 - Digital, Transistor SYSMAC CJ Series 16 - 24 V dc 500 mA - 89mm 31mm 95.4mm
RS庫存編號 662-3167
製造零件編號6ES7131-4BD01-0AA0
BrandSiemens
HK$307.41
單位
SIMATIC ET 200S 4 - Digital - SIMATIC ET 200S Series 4 - 24 V dc - - 81mm 15mm 52mm
RS庫存編號 746-6713
製造零件編號6ES7360-3AA01-0AA0
BrandSiemens
HK$3,359.20
單位
6ES7 Series - - - - S7-300 Series - - - - - - - -
RS庫存編號 815-5915
製造零件編號FP2-SL2
BrandPanasonic
HK$3,945.46
單位
FP2 Series 128 128 - - FP2 Series 128 - 24 V dc 1.6 A - - - -
RS庫存編號 453-2646
製造零件編號6ES7322-5HF00-0AB0
BrandSiemens
HK$2,366.77
單位
SIMATIC S7-300 Series - 8 - Digital, Relay S7-300 Series 8 - 24 V dc, 24 → 240 V ac 5 A - 125mm 40mm 120mm
RS庫存編號 459-5394
製造零件編號SRT2ID161
BrandOmron
HK$1,863.40
單位
SRT2 16 - Digital Mosfet, Relay, Transistor SRT2 Series 16 - 24 V dc 300 (Per Point) mA - 105mm 48mm 50mm
RS庫存編號 674-1946
製造零件編號TM2DDI32DK
HK$2,068.03
單位
Twido Series 32 - Digital - Twido Series - - 24 V dc - Input Module 92.3mm 33.5mm 94.5mm
RS庫存編號 662-3561
製造零件編號6ES7138-4CA01-0AA0
BrandSiemens
HK$143.34
單位
ET200S - - - Current, Potential, Voltage ET200S Series - - 24 V dc - Power Module 81mm 15mm 52mm
RS庫存編號 434-1850
製造零件編號6ES7231-7PD22-0XA0
BrandSiemens
HK$5,730.24
單位
S7-200 4 - Analogue - S7-231 Series - - 24 V dc - Input Module 80mm 71.2mm 62mm
RS庫存編號 719-1936
製造零件編號750-1504
BrandWago
HK$1,091.57
單位
I/O SYSTEM 750 - 16 (Channel) - Digital 750 Series - - 24 V dc - Output Module 67mm 12mm 100mm
RS庫存編號 405-6209
製造零件編號4825 0093
BrandSocomec
HK$1,405.90
單位
- - 4 - Analogue - - - - - - - - -
RS庫存編號 806-6890
製造零件編號TMC2AQ2V
HK$693.06
單位
Modicon M221 2 - Analogue Current Modicon M221 - - 24 V dc 20 mA - - - -
RS庫存編號 453-2551
製造零件編號6ES7332-5HD01-0AB0
BrandSiemens
HK$5,395.43
單位
SIMATIC S7-300 Series - 4 - Analogue SIMATIC S7-300 Series 4 - 24 V dc - - 125mm 40mm 120mm
RS庫存編號 539-0774
製造零件編號FX3U-4AD-TC-ADP
BrandMitsubishi
HK$3,468.35
單位
FX3U Series 4 - Analogue, J Type, K Type Digital, J Type, K Type FX3U Series - - 5 V dc, 24 V dc - Analogue Temperature Input Adapter 106mm 17.6mm 89.5mm
RS庫存編號 787-7942
製造零件編號6ES7221-1BF32-0XB0
BrandSiemens
HK$972.09
單位
SM 1221 8 - Digital Digital SIMATIC S7-1200 Series - - 24 V dc - - 100mm 45mm 75mm
RS庫存編號 124-3344
製造零件編號2901540
HK$6,608.59
單位
RAD-900-IFS - 1 (Analogue), 1 (Digital) - Analogue, Digital Large System & Networks 2 (Output) - 0 → 3 V 500 mA Wireless I/O Module 35mm 99mm 114.5mm
RS庫存編號 787-7945
製造零件編號6ES7221-1BH32-0XB0
BrandSiemens
HK$1,540.19
單位
SM 1221 16 - Digital - SIMATIC S7-1200 Series - - 24 V dc - - 100mm 45mm 75mm
RS庫存編號 787-7973
製造零件編號6ES7232-4HB32-0XB0
BrandSiemens
HK$2,108.26
單位
SM 1232 - 2 - Analogue SIMATIC S7-1200 Series - - 24 V dc 0 → 20 mA - 100mm 45mm 75mm
RS庫存編號 770-2466
製造零件編號TM5SAI2H
HK$3,240.00
單位
TM5 2 - Analogue - Modicon LMC058, Modicon M258 - - 24 V dc 50 mA - 99mm 12.5mm 75mm
RS庫存編號 855-3325
製造零件編號2701162
HK$332.80
單位
IB IL 24 PWR IN/2-F-XC-PAC - - - - - - - - - - 119.8mm 12.2mm 71.5mm