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.


...
Read more Read less

Filters

Viewing 1 - 20 of 351 products
Results per page
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 Stock No. 855-1455
Mfr. Part No.2897253
HK$5,307.82
1 Box of 4
Box(es)
IB IL 24 DO 16-ME - 16 - Digital - - - - 8 A - 119.8mm 48.8mm 71.5mm
RS Stock No. 901-0817
Mfr. Part No.2903806
HK$5,030.28
Each
units
TC MOBILE I/O X200 AC 4 4 Digital Relay PSI Modem SMS Relay 8 - 125 V dc, 250 V ac 5 A Digital 71.6mm 62.2mm 89.7mm
RS Stock No. 901-0826
Mfr. Part No.2903805
HK$5,443.55
Each
units
TC MOBILE I/O X200 2 4 Analogue, Digital Relay PSI Modem SMS Relay 6 - 0 → 60 V dc 6 A Analogue, Digital 71.6mm 62.2mm 89.7mm
RS Stock No. 801-5766
Mfr. Part No.2700973
HK$3,240.39
Each
units
ILC 131 ETH - - - - - - - - - - - - -
RS Stock No. 855-1424
Mfr. Part No.2878340
HK$2,066.41
Each
units
IB IL 24 DO 32/HD-NPN-PAC - 32 - Digital - - - - 8 A - 119.8mm 48.8mm 71.5mm
New
RS Stock No. 196-1257
Mfr. Part No.2700975
HK$4,140.67
Each
units
- 8 4 Digital Digital INTERBUS 4 (Digital Output), 8 (Digital Input) - - 500 mA - 80mm 119.8mm 71.5mm
RS Stock No. 124-3344
Mfr. Part No.2901540
HK$6,643.36
Each
units
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 Stock No. 855-1430
Mfr. Part No.2878722
HK$2,450.22
Each
units
IB IL RS 232-PRO-PAC - - - - - - - 19.2 → 30 V dc - - 136mm 24.4mm 71.5mm
RS Stock No. 283-6429
Mfr. Part No.2799364
HK$865.55
Each
units
PSM PTK-4 - - - - - - - 28 V dc, 240 V ac - - 86mm 12.3mm 96mm
RS Stock No. 855-1458
Mfr. Part No.2897402
HK$5,627.22
Each
units
IB IL TEMP 4/8 RTD/EF-PAC 8 - Analogue - - - - 24 V dc - - 119.8mm 48.8mm 71.5mm
RS Stock No. 124-3350
Mfr. Part No.2906596
HK$1,043.34
Each
units
VIP/S/MC/BASE 1-8/L/EX - - - - - 8 - - - Base Module 118.1mm 102.7mm 72.2mm
RS Stock No. 124-3354
Mfr. Part No.2906603
HK$247.92
Each
units
IOA REL 24V DI/BFI/1.0A/EX 1 (Digital) - Digital Relay - Field Devices 1 (Input) - - - I/O Module 10.3mm 64.2mm 72.9mm
RS Stock No. 855-3265
Mfr. Part No.2692898
HK$2,255.28
Each
units
IB IL 24 DO 32/HD-2MBD-PAC - - - - - - - - - - 119.8mm 48.8mm 71.5mm
RS Stock No. 855-3518
Mfr. Part No.2862013
HK$2,917.94
Each
units
IB IL 24 DO 16-2MBD-PAC - 16 - Digital - - - - 8 A - 140.5mm 48.8mm 71.5mm
RS Stock No. 855-3319
Mfr. Part No.2701159
HK$5,673.78
Each
units
IB IL AI 8/SF-XC-PAC 8 - Analogue - - - - 24 V dc - - - - -
RS Stock No. 855-1461
Mfr. Part No.2897813
HK$5,296.78
Each
units
IB IL DALI/PWR-PAC - - - - - - - - - - 119.8mm 48.8mm 71.5mm
RS Stock No. 855-3372
Mfr. Part No.2701389
HK$1,440.64
Each
units
IB IL AO 2/UI-XC-PAC - 2 - Analogue - - - 24 V dc - - 119.8mm 12.2mm 71.5mm
RS Stock No. 855-3498
Mfr. Part No.2861865
HK$2,987.33
Each
units
IB IL SSI-PAC 3 4 - - - - - 19.2 → 30 V dc - - 140.5mm 48.8mm 71.5mm
RS Stock No. 855-1345
Mfr. Part No.2862136
HK$278.34
Each
units
IB IL 24 PWR IN/2-F-PAC - - - - - - - 19.2 → 30 V dc - - 119.8mm 12.2mm 71.5mm
RS Stock No. 855-1360
Mfr. Part No.2862194
HK$2,585.90
Each
units
IB IL AO 2/SF-2MBD-PAC - 2 - Analogue - - - 24 V dc - - 136.8mm 48.8mm 71.5mm