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 81 - 100 of 665 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. 806-6922
Mfr. Part No.TM3DI8
$244.75
Each
units
TM3 Series 8 - - - Modicon M221, Modicon M241, Modicon M251 - - 24 V - - 90mm 23.6mm 70mm
RS Stock No. 539-5000
Mfr. Part No.SR3MBU01BD
$411.40
Each
units
SR3 4 4 - Relay - - - 24 V dc - - 107.6mm 35.5mm 59.5mm
RS Stock No. 148-082
Mfr. Part No.BMXDDO3202K
$1,015.17
Each
units
M340 - 32 - Discrete, Transistor M340 Series 32 - 24 V dc - - - - -
RS Stock No. 510-1495
Mfr. Part No.CJ1WOD211
BrandOmron
$427.23
Each
units
SYSMAC CJ Series - 16 - Digital, Transistor SYSMAC CJ Series 16 - 12 → 24 V dc 500 mA - 89mm 31mm 95.4mm
RS Stock No. 674-1962
Mfr. Part No.TM2DRA16RT
$367.88
Each
units
Modicon M238, Twido Series - 16 - Digital Modicon M238, Twido Series - - 230 V ac - Output Module 90mm 24mm 70mm
RS Stock No. 612-9084
Mfr. Part No.6ES7334-0CE01-0AA0
BrandSiemens
$882.30
Each
units
SIMATIC S7-300 Series 4 2 Analogue Analogue SIMATIC S7-300 Series 6 - 24 V dc - - 125mm 40mm 120mm
RS Stock No. 893-0647
Mfr. Part No.1315200000
BrandWeidmuller
$236.70
Each
units
- 16 - Digital Voltage - - 16 - 5 → 11 V - Digital Input 120mm 11.5mm 76mm
RS Stock No. 888-7997
Mfr. Part No.G4PB24
BrandOpto 22
$272.25
Each
units
G4 - - - - G4 I/O Modules 24 - - - - 190.5mm 158.8mm 58.9mm
RS Stock No. 746-6602
Mfr. Part No.6ES7323-1BH01-0AA0
BrandSiemens
$569.64
Each
units
- 8 8 Digital Digital S7-300 Series - - 24 V dc - - 125mm 40mm 120mm
RS Stock No. 453-2624
Mfr. Part No.6ES7322-1BL00-0AA0
BrandSiemens
$1,038.63
Each
units
SIMATIC S7-300 Series - 32 - Digital S7-300 Series 32 - 20.4 → 28.8 V dc 500 mA - 125mm 40mm 120mm
RS Stock No. 528-0447
Mfr. Part No.2832962
$820.97
Each
units
ILB ETH 24 DI16 DIO16-2TX 16 16 Digital Digital ILB ETH Series 32 - 24 V dc 500 mA - 141mm 156mm 55mm
RS Stock No. 662-3539
Mfr. Part No.6ES7138-4AA01-0AA0
BrandSiemens
$32.42
Each
units
ET200S - - - - ET200S Series - - 24 V dc - Reserve Module 15mm 81mm 52mm
RS Stock No. 787-7986
Mfr. Part No.6ES7234-4HE32-0XB0
BrandSiemens
$663.92
Each
units
SM 1234 4 2 Analogue Analogue SIMATIC S7-1200 Series 6 - 24 V dc 0 → 20 mA - 100mm 45mm 75mm
RS Stock No. 512-5930
Mfr. Part No.CJ1W-SCU41
BrandOmron
$1,215.30
Each
units
CJ Series - - - - CJ Series - - - - - - - -
RS Stock No. 453-2630
Mfr. Part No.6ES7322-1HH01-0AA0
BrandSiemens
$761.28
Each
units
SIMATIC S7-300 Series - 16 - Digital, Relay S7-300 Series - - 24 → 240 V ac, 24 V dc 2 A - 125mm 40mm 120mm
RS Stock No. 787-8018
Mfr. Part No.6ES7223-1PH32-0XB0
BrandSiemens
$389.68
Each
units
SM 1223 8 8 Digital Digital SIMATIC S7-1200 Series 16 - 24 V dc 2 A - 100mm 45mm 75mm
RS Stock No. 806-7023
Mfr. Part No.TM3AI4
$453.20
Each
units
TM3 Series 4 - Current, Voltage - Modicon M221, Modicon M241, Modicon M251 - - -10 → 10 V dc - - 90mm 23.6mm 70mm
RS Stock No. 662-3549
Mfr. Part No.6ES7132-4HB01-0AB0
BrandSiemens
$80.52
Each
units
SIMATIC ET 200S - 2 - Digital SIMATIC ET 200S Series 2 - 24 → 120 V dc, 24 → 230 V ac 5 A - 81mm 15mm 52mm
RS Stock No. 623-7680
Mfr. Part No.VBA-4E3A-KE-ZE/R
$249.00
Each
units
- 4 3 - - - 7 - 21 → 31 V dc - - 102mm 22.5mm 99mm
RS Stock No. 528-0453
Mfr. Part No.2862343
$906.58
Each
units
ILB IB 24 DI32 32 - Digital - INTERBUS 32 - 24 V dc - - 140.5mm 156mm 57mm
Related Products
SCALANCE X308 — Ethernet Switch SCALANCE X-300 managed ...
Description:
SCALANCE X308 — Ethernet Switch SCALANCE X-300 managed plus For setting up electrical and optical industrial Ethernet linear, star or ring structures Redundant voltage feed Device diagnosis on device using LEDAlarm contact for simple indication of disruptions SCALANCE X-300 managed ...
Digital Output Modules The PNP transistor output module ...
Description:
Digital Output Modules The PNP transistor output module (Stock No 512-5902) features short circuit protection and an output wire break sensing facility Commons: 1 (8 for stock no. 510-1489)Outputs: 16 (8 for stock no. 510-1489)Current Consumption: 90mA @ 5Vdc (48mA ...
Inline block I/O for Ethernet Inline block I/O ...
Description:
Inline block I/O for Ethernet Inline block I/O module for direct operation in an Ethernet network Quick and easy wiring using tension spring technology and removable plugs Different voltage areas identified by coloured printingLED display panels Bus connection via RJ45 ...
Inline block I/O for INTERBUS Inline block I/O ...
Description:
Inline block I/O for INTERBUS Inline block I/O modules for direct operation in an INTERBUS network Quick and easy wiring using tension spring technology and removable plugs Different voltage areas identified by coloured printingLED display panels Bus connection via inline ...