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 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 735-2901
製造零件編號6GK7242-5DX30-0XE0
BrandSiemens
HK$3,116.00
單位
S7-1200 - - - - S7-1200 Series - - - - - - - -
RS庫存編號 855-3476
製造零件編號2861687
HK$1,275.10
單位
IB IL 24 DO 8-2MBD-PAC - 8 - Digital - - - - 4 A - 119.5mm 48.8mm 71.5mm
RS庫存編號 806-6922
製造零件編號TM3DI8
HK$970.36
單位
TM3 Series 8 - - - Modicon M221, Modicon M241, Modicon M251 - - 24 V - - 90mm 23.6mm 70mm
RS庫存編號 893-7837
製造零件編號2700838
HK$9,368.75
單位
IB ST 24 AI 4/EF 4 - Analogue Voltage - ST Station 4 - -10 → 10 V dc, 0 → 10 V dc - Analogue Input 118mm 116mm 117mm
RS庫存編號 806-7058
製造零件編號TM3TM3G
HK$2,356.61
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
RS庫存編號 893-6786
製造零件編號1315770000
BrandWeidmuller
HK$173.57
單位
- - - - - Remote I/O - - - - Auxiliary Module 120mm 11.5mm 76mm
RS庫存編號 806-6932
製造零件編號TM3DI16K
HK$860.20
單位
TM3 Series 16 - - - Modicon M221, Modicon M241, Modicon M251 - - 24 V - - 90mm 17.6mm 70mm
RS庫存編號 735-2884
製造零件編號6ES7231-4HA30-0XB0
BrandSiemens
HK$614.28
單位
SIMATIC S7-1200 1 - Analogue, Differential - SIMATIC S7-1200 Series 1 - 5 V dc - - 62mm 38mm 21mm
RS庫存編號 662-3700
製造零件編號6ES7193-4CC20-0AA0
BrandSiemens
HK$75.50
單位
ET200S - - - - ET200S Series - - - - Terminal Module - - -
RS庫存編號 405-6215
製造零件編號4825 0094
BrandSocomec
HK$2,470.69
單位
- 2 2 - - - 4 - - - - - - -
RS庫存編號 787-7951
製造零件編號6ES7222-1HF32-0XB0
BrandSiemens
HK$972.09
單位
SM 1222 - 8 Digital Digital SIMATIC S7-1200 Series - - 24 V dc 2 A - 100mm 45mm 75mm
RS庫存編號 855-3414
製造零件編號2819765
HK$4,848.97
單位
IB IL INC-IN-2MBD-PAC 1 - - - - - - - - - 140.5mm 24.4mm 71.5mm
RS庫存編號 614-0564
製造零件編號6GK5208-0HA00-2AA6
BrandSiemens
HK$8,700.00
單位
6GK5 208 - - - - - 11 - 24 V dc - - 125mm 90mm 124mm
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 806-7073
製造零件編號TM3TI8TG
HK$2,356.61
單位
TM3 Series 8 - Current, Voltage - Modicon M221, Modicon M241, Modicon M251 - - -10 → 10 V dc - - 90mm 23.6mm 70mm
RS庫存編號 827-3815
製造零件編號140DRA84000
HK$7,891.20
單位
Modicon Quantum - 16 - Discrete Modicon Momentum Automation Platform 16 (Output) - 5 → 30 V dc, 20 → 250 V ac, 30 → 150 V dc - - 290mm - -
RS庫存編號 763-1083
製造零件編號EU5E-SWD-4D2R
BrandEaton
HK$690.00
單位
- 4 2 Digital Analogue, Relay SmartWire-DT - - 24 V dc 3 A - 90mm 35mm 101mm
RS庫存編號 746-5779
製造零件編號6ES7222-1AD30-0XB0
BrandSiemens
HK$567.92
單位
6ES7 Series - 4 - Digital, Transistor S7-1200 Series 4 - 5 V dc 50 mA - 62mm 38mm 21mm
RS庫存編號 893-6705
製造零件編號1394390000
BrandWeidmuller
HK$1,487.99
單位
- 4 - Analogue Voltage - - 4 - -10 → 10 V, 0 → 10 V, 0 → 5 V, 1 → 5 V, 2 → 10 V - Analogue Input 120mm 11.5mm 76mm