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 510-1489
製造零件編號CJ1WOC201.1
BrandOmron
HK$3,020.28
單位
SYSMAC CJ Series - 8 - Digital, Relay SYSMAC CJ Series 8 - 24 V dc, 250 V ac 2 A - 89mm 31mm 95.4mm
RS庫存編號 145-857
製造零件編號GRT1-AD2
BrandOmron
HK$4,674.53
單位
GRT1 Series 2 - Analogue - - 2 - - - - - - -
RS庫存編號 614-0564
製造零件編號6GK5208-0HA00-2AA6
BrandSiemens
HK$10,715.16
單位
6GK5 208 - - - - - 11 - 24 V dc - - 125mm 90mm 124mm
全新
RS庫存編號 196-3677
製造零件編號6GK53240GG101AR2
BrandSiemens
HK$18,915.48
單位
6GK5324 - - - - - - - 19.2 → 28.8 V dc - - 483mm 44mm 305mm
RS庫存編號 746-5776
製造零件編號6ES7223-3AD30-0XB0
BrandSiemens
HK$734.30
單位
6AG1 Series 2 - Digital Digital S7-1200 Series 2 - 5 V dc - - 62mm 38mm 21mm
RS庫存編號 712-5074
製造零件編號Insys Moros Modem Pro
HK$6,680.00
單位
- - - - - - - - 10 → 60 V dc - - 110mm 70mm 75mm
RS庫存編號 662-3539
製造零件編號6ES7138-4AA01-0AA0
BrandSiemens
HK$173.20
單位
ET200S - - - - ET200S Series - - 24 V dc - Reserve Module 15mm 81mm 52mm
RS庫存編號 787-7970
製造零件編號6ES7231-4HF32-0XB0
BrandSiemens
HK$3,440.91
單位
SM 1231 8 - Analogue Analogue SIMATIC S7-1200 Series - - 24 V dc - - 100mm 45mm 75mm
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 662-3678
製造零件編號6ES7151-3AA23-0AB0
BrandSiemens
HK$3,168.88
單位
ET200S - - - - ET200S Series - - 24 V dc - Interface Module 119.5mm 60mm 75mm
RS庫存編號 467-658
製造零件編號6GK5786-3AB60-2AB0
BrandSiemens
HK$21,697.90
單位
6GK5 786 - - - - - 16 - 12 → 24 V dc, 100 → 240 V ac - - 251mm 251mm 72mm
RS庫存編號 770-2545
製造零件編號TM5SDO2T
HK$480.00
單位
TM5 - 2 - Digital, Transistor Modicon LMC058, Modicon M258 - - 24 V dc 12 A - 99mm 12.5mm 75mm
RS庫存編號 812-9718
製造零件編號FC4A-N08B1
BrandIdec
HK$2,639.32
單位
FC4A 8 - Voltage - MicroSmart Pentra CPU 8 - 24 V dc - Descrete Expansion Module 90mm 27.3mm 84.6mm
RS庫存編號 674-1943
製造零件編號TM2DDI16DT
HK$1,918.34
單位
Twido Series 16 - Digital - Twido Series - - 24 V dc - Input Module 90mm 24mm 70mm
RS庫存編號 875-5694
製造零件編號FX5-8EX/ES
BrandMitsubishi
HK$1,200.91
單位
FX5 8 - Sink, Source - FX5U CPU Module, FX5UC CPU Module - - - - Input 40mm 90mm 83mm
RS庫存編號 148-082
製造零件編號BMXDDO3202K
HK$3,391.50
單位
M340 - 32 - Discrete, Transistor M340 Series 32 - 24 V dc - - - - -
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 875-5701
製造零件編號FX5-16EX/ES
BrandMitsubishi
HK$2,005.62
單位
FX5 16 - Sink, Source - FX5U CPU Module, FX5UC CPU Module - - - - Input 40mm 90mm 83mm
RS庫存編號 746-2818
製造零件編號CJ1W-DA08C
BrandOmron
HK$9,450.86
單位
CJ1W Series - 8 - Analogue CJ1W Series 8 - 24 V dc 20 mA - 90mm 31mm 65mm
RS庫存編號 609-8700
製造零件編號TSXETZ410
HK$13,567.84
單位
TSX - - - - Modicon TSX Micro - - 24 V dc - - 151.5mm 39.83mm 116.7mm