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 510-1710
製造零件編號CJ1W-AD041
BrandOmron
HK$5,189.80
單位
SYSMAC CJ Series, SYSMAC CP1H, SYSMAC CP1L 4 - Analogue - SYSMAC CJ Series, SYSMAC CP1H Series, SYSMAC CP1L Series 4 - -10 → 10 V, 0 → 10 V, 0 → 5 V, 1 → 5 V - - 90mm 31mm 65mm
RS庫存編號 253-2341
製造零件編號TSXDMZ64DTK
HK$6,747.04
單位
Modicon TSX Micro 32 32 (Solid State) Discrete Discrete Modicon TSX 64 - 24 V dc 100 mA - - - -
RS庫存編號 609-8671
製造零件編號TSXDSZ08T2
HK$3,000.00
單位
Modicon TSX Micro - 8 (Channel) - Discrete, Relay Modicon TSX 8 - 24 V dc 500 mA - - - -
RS庫存編號 467-804
製造零件編號6GK5786-2AA60-2AA0
BrandSiemens
HK$12,589.91
單位
6GK5 786 - - - - - 7 - 12 → 24 V dc, 100 → 240 V ac - - 251mm 251mm 72mm
RS庫存編號 508-3943
製造零件編號750461
BrandWago
HK$2,355.72
單位
I/O SYSTEM 750 2 (Channel) - Analogue - 750 Series - - - - Input Module 100mm 12mm 64mm
RS庫存編號 467-753
製造零件編號6GK5308-2FM00-2AA3
BrandSiemens
HK$31,963.74
單位
6GK5 308 - - - - - 14 - 24 V dc - - 125mm 120mm 123mm
RS庫存編號 888-7353
製造零件編號240A45
BrandOpto 22
HK$469.58
單位
Power - - - AC Output - - - 24 → 280 V ac - Solid State Relay 44.5mm 57.2mm 24.5mm
RS庫存編號 855-1411
製造零件編號2869913
HK$8,071.34
單位
IB IL EX-IS TEMP 4 RTD/TC-PAC 4 - - - - - - - - - 136.8mm 48.8mm 71.5mm
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 467-680
製造零件編號6GK5786-3AA60-2AA0
BrandSiemens
HK$15,043.50
單位
6GK5 786 - - - - - 10 - 12 → 24 V dc, 100 → 240 V ac - - 251mm 251mm 72mm
RS庫存編號 623-7719
製造零件編號VBA-4E3A-G2-ZA/EA2
HK$1,639.88
單位
- 4 3 - - - 7 - 20 → 30 V dc - - 150mm 18.7mm 60mm
RS庫存編號 162-5695
製造零件編號FX58AD
BrandMitsubishi
HK$4,948.70
單位
FX5 8 8 Analogue Digital FX5U CPU Module, FX5UC CPU Module 8 - 24 V dc 100 mA Digital output 50mm 102.2mm 90mm
RS庫存編號 855-3313
製造零件編號2701160
HK$4,057.60
單位
IB IL CAN-MA-XC-PAC - - - - - - - - - - - - -
RS庫存編號 806-6957
製造零件編號TM3DQ16R
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 806-7039
製造零件編號TM3AI8G
HK$2,217.90
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 893-6770
製造零件編號1334790000
BrandWeidmuller
HK$223.17
單位
- - - - - Remote I/O - - - - Auxiliary Module 120mm 11.5mm 76mm
RS庫存編號 855-1452
製造零件編號2897606
HK$5,563.12
單位
IB IL TEMP 4/8 RTD/EF-2MBD-PAC 8 - Analogue - - - - 24 V dc - - 136.8mm 48.8mm 71.5mm
RS庫存編號 667-9251
製造零件編號750-530
BrandWago
HK$640.46
單位
I/O SYSTEM 750 - 8 (Channel) - Digital 750 Series - - 24 V dc - Output Module 100mm 12mm 64mm
RS庫存編號 855-3442
製造零件編號2861360
HK$938.97
單位
IB IL 24 TC-PAC 1 1 - - - - - 24 V dc - - 119.8mm 12.2mm 71.5mm
RS庫存編號 508-3937
製造零件編號750554
BrandWago
HK$2,080.10
單位
I/O SYSTEM 750 - 2 (Channel) - Analogue 750 Series - - - - Output Module 100mm 12mm 64mm