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 806-6950
製造零件編號TM3DQ16RG
HK$1,524.84
單位
TM3 Series - 16 - Relay Modicon M221, Modicon M241, Modicon M251 - - 24 → 240 V 2 A - 90mm 23.6mm 70mm
RS庫存編號 827-3833
製造零件編號170AAI03000
HK$7,866.91
單位
- 8 - Analogue - Modicon Momentum - - 1 → 5 V - Input 125mm 141.5mm 47.5mm
RS庫存編號 662-3586
製造零件編號6ES7134-4GB11-0AB0
BrandSiemens
HK$1,280.00
單位
SIMATIC ET 200S 2 - Analogue - SIMATIC ET 200S Series 2 - 24 V dc - - 81mm 15mm 52mm
RS庫存編號 889-1687
製造零件編號SNAP-PAC-SB2
BrandOpto 22
HK$5,262.56
單位
SNAP PAC - - - - SNAP PAC System 32 - - - Analogue, Digital 83.82mm 46.46mm 108.59mm
RS庫存編號 136-2800
製造零件編號NXAD3603
BrandOmron
HK$1,782.00
單位
NX 4 - Analogue - CJ PLC, EtherCAT Coupler Unit, NX Series CPU Unit 4 (Input) - -10 → +10 V - Input 12mm 71mm 100mm
RS庫存編號 770-2532
製造零件編號TM5SDO12TK
HK$1,910.00
單位
M258 - - - - M258 PLC Series - - - - - - - -
RS庫存編號 806-6982
製造零件編號TM3DM24RG
HK$2,079.31
單位
TM3 Series 16 8 - Relay Modicon M221, Modicon M241, Modicon M251 24 - 24 → 240 V 2 A - 90mm 39.1mm 70mm
RS庫存編號 162-5696
製造零件編號FX5-4LC
BrandMitsubishi
HK$4,828.00
單位
FX5 4 4 Analogue Transistor FX5U CPU Module, FX5UC CPU Module 8 - 24 V dc 100 mA DC Output 60mm 102.2mm 90mm
RS庫存編號 868-7359
製造零件編號750-461/003-000
BrandWago
HK$2,224.70
單位
750 2 1 Analogue Voltage - 3 - - - DC to DC 64mm 12mm 100mm
RS庫存編號 135-5203
製造零件編號170ADM35010
HK$2,788.17
單位
170AD 16 16 Discrete Discrete - 16 - 3 → 30 V 4 (Group) A, 8 (Module) A, 500 (Point) mA Discrete Solid State I/O Base DC 60mm 141.5mm 125mm
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 806-7010
製造零件編號TM3AI2H
HK$1,293.91
單位
TM3 Series 2 - Current, Voltage - Modicon M221, Modicon M241, Modicon M251 - - -10 → 10 V dc - - 90mm 23.6mm 70mm
RS庫存編號 667-9223
製造零件編號750-404
BrandWago
HK$2,186.26
單位
750 1 2 Current Digital 750 Series 1/2 - 24 V dc 500 mA - - 12mm -
RS庫存編號 614-0693
製造零件編號6GK5101-1BC00-2AA3
BrandSiemens
HK$7,089.96
單位
6GK5 101 - - - - - - Ethernet 24 V dc - Ethernet Communications Module 125mm 40mm 124mm
RS庫存編號 662-3687
製造零件編號6ES7193-4CD20-0AA0
BrandSiemens
HK$75.50
單位
- - - - - ET200S Series 6 - - - - 132mm 15mm 43mm
RS庫存編號 815-5833
製造零件編號AFP8532
BrandPanasonic
HK$4,223.85
單位
AFP85 Series - - - - FP0R Series - - 24 V dc - - - - -
RS庫存編號 674-1924
製造零件編號TM2AMI8HT
HK$2,401.23
單位
Modicon M238 8 - Analogue - Modicon M238 8 - 24 V dc - - 0.9in 2.75in 3.5in
RS庫存編號 467-810
製造零件編號6GK5786-1BA60-2AA0
BrandSiemens
HK$10,469.39
單位
6GK5 786 - - - - - 3 - 48 V dc - - 251mm 251mm 72mm
RS庫存編號 539-0768
製造零件編號FX3U-4AD-PT-ADP
BrandMitsubishi
HK$3,468.35
單位
MELSEC FX 4 (PT100) - Analogue Relay, Transistor MELSEC FX Series 4 - 5 → 24 V dc - - 90mm 17.6mm 89.5mm
RS庫存編號 893-7830
製造零件編號2701955
HK$8,962.43
單位
IB STME 24 AI 4/EF 4 - Analogue Voltage - - 4 - -10 → 10 V dc, 0 → 10 V dc - Analogue Input 118mm 116mm 117mm