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 136-2796
製造零件編號NXAD2203
BrandOmron
HK$1,755.49
單位
NX 2 - Analogue - CJ PLC, EtherCAT Coupler Unit, NX Series CPU Unit 2 (Input) - - - Input 12mm 71mm 100mm
全新
RS庫存編號 201-5351
製造零件編號2701230
HK$3,372.12
單位
AXL F - 32 dedicated Voltage Digital - - - 24 V dc 500 mA - - - -
RS庫存編號 467-787
製造零件編號6GK5786-2AB60-2AB0
BrandSiemens
HK$18,840.42
單位
6GK5 786 - - - - - 11 - 12 → 24 V dc, 100 → 240 V ac - - 251mm 251mm 72mm
RS庫存編號 148-111
製造零件編號BMXDRA0805
HK$1,655.18
單位
M340 - 8 - Discrete, Relay M340 Series 8 - 24 V dc, 24 → 240 V ac - - - - -
RS庫存編號 770-2539
製造零件編號TM5SDM12DT
HK$2,485.06
單位
TM5 8 4 Digital Digital, Transistor Modicon LMC058, Modicon M258 - - 24 V dc 12 A - 99mm 12.5mm 75mm
RS庫存編號 806-6966
製造零件編號TM3DQ16T
HK$2,094.87
單位
TM3 Series - 16 - Source, Transistor Modicon M221, Modicon M241, Modicon M251 - - 24 V 500 mA - 90mm 23.6mm 70mm
RS庫存編號 662-3586
製造零件編號6ES7134-4GB11-0AB0
BrandSiemens
HK$1,632.20
單位
SIMATIC ET 200S 2 - Analogue - SIMATIC ET 200S Series 2 - 24 V dc - - 81mm 15mm 52mm
RS庫存編號 893-6774
製造零件編號1334800000
BrandWeidmuller
HK$222.05
單位
- - - - - Remote I/O - - - - Auxiliary Module 120mm 11.5mm 76mm
RS庫存編號 662-3511
製造零件編號6ES7131-4BB01-0AA0
BrandSiemens
HK$192.31
單位
SIMATIC ET 200S 2 - Digital - SIMATIC ET 200S Series 2 - 24 V dc - - 81mm 15mm 52mm
RS庫存編號 455-6838
製造零件編號QY80
BrandMitsubishi
HK$1,893.32
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 893-0625
製造零件編號1334920000
BrandWeidmuller
HK$3,084.45
單位
U-remote - - - - Remote I/O - - - - Fieldbus Coupler 52mm 76mm 120mm
RS庫存編號 806-7020
製造零件編號TM3AI8
HK$3,076.32
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 889-0924
製造零件編號SNAP-IDC5Q
BrandOpto 22
HK$4,005.60
單位
- - - - - - - - - - - - - -
RS庫存編號 806-7045
製造零件編號TM3AQ4
HK$3,311.58
單位
TM3 Series - 4 - Current, Voltage Modicon M221, Modicon M241, Modicon M251 - - -10 → 10 V dc 0 → 20 mA - 90mm 23.6mm 70mm
RS庫存編號 696-2128
製造零件編號2313478
HK$3,245.33
單位
FL COMSERVER BASIC 232/422/485 - - - - - - - 28 V dc, 240 V ac - - 86mm 12.3mm 96mm
RS庫存編號 855-3252
製造零件編號2692720
HK$2,666.71
單位
IB IL IFS-MA-PAC - - - - - - - - - - 135mm 24.4mm 71.5mm
全新
RS庫存編號 203-3697
製造零件編號6ES7534-7QE00-0AB0
BrandSiemens
HK$5,507.40
單位
SIMATIC S7-1500 4 2 Analog Analogue - - - 24 V DC 20 mA - - - -
RS庫存編號 145-992
製造零件編號GRT1-DA2C
BrandOmron
HK$5,999.83
單位
GRT1 Series - 2 - Analogue - 2 - - - - - - -
RS庫存編號 851-4223
製造零件編號FC6A-PK2AV
BrandIdec
HK$3,730.54
單位
Smart AXIS 2 2 - Voltage FT1A Controller 2 - 3.3 V, 5 V - - - - -
RS庫存編號 888-8586
製造零件編號SNAP-AIRTD
BrandOpto 22
HK$2,605.53
單位
SNAP 2 - Analogue RTD - SNAP PAC System 2 - - - Analogue Input 82.55mm 18.29mm 90.17mm