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 667 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. 667-9220
Mfr. Part No.750-400
BrandWago
$91.13
Each
units
I/O SYSTEM 750 2 (Channel) - Digital - 750 Series - - 24 V dc - Input Module 100mm 12mm 64mm
RS Stock No. 735-2904
Mfr. Part No.6ES7241-1CH30-1XB0
BrandSiemens
$210.29
Each
units
S7-1200 - - - - S7-1200 Series - - - - - 62mm 38mm 21mm
RS Stock No. 667-9217
Mfr. Part No.750-340
BrandWago
$1,040.95
Each
units
750 Series 32 32 Analogue, Digital Analogue, Digital 750 Series 64 - 24 V - - - - -
RS Stock No. 614-0687
Mfr. Part No.6GK5101-1BB00-2AA3
BrandSiemens
$856.55
Each
units
6GK5 101 - - - - - - Ethernet 24 V dc - Ethernet Communications Module 125mm 40mm 124mm
RS Stock No. 735-2884
Mfr. Part No.6ES7231-4HA30-0XB0
BrandSiemens
$144.46
Each
units
SIMATIC S7-1200 1 - Analogue, Differential - SIMATIC S7-1200 Series 1 - 5 V dc - - 62mm 38mm 21mm
RS Stock No. 828-5252
Mfr. Part No.6ES7231-4HD32-0XB0
BrandSiemens
$427.38
Each
units
6ES7231 4 - Analogue - SIMATIC S7-1200 4 - 24 V dc - - 100mm 45mm 75mm
RS Stock No. 787-7973
Mfr. Part No.6ES7232-4HB32-0XB0
BrandSiemens
$573.33
Each
units
SM 1232 - 2 - Analogue SIMATIC S7-1200 Series - - 24 V dc 0 → 20 mA - 100mm 45mm 75mm
RS Stock No. 806-6972
Mfr. Part No.TM3DQ32TK
$436.18
Each
units
TM3 Series - 32 - Source, Transistor Modicon M221, Modicon M241, Modicon M251 - - 24 V 100 mA - 90mm 30.2mm 70mm
RS Stock No. 806-7042
Mfr. Part No.TM3AM6
$583.15
Each
units
TM3 Series 4 2 Current, Voltage Current, Voltage Modicon M221, Modicon M241, Modicon M251 6 - -10 → 10 V dc 0 → 20 mA - 90mm 23.6mm 70mm
RS Stock No. 508-3959
Mfr. Part No.750600
BrandWago
$38.03
Each
units
I/O SYSTEM 750 - - - - 750 Series - - - - End Module 100mm 12mm 64mm
RS Stock No. 662-3542
Mfr. Part No.6ES7132-4FB01-0AB0
BrandSiemens
$469.31
Each
units
SIMATIC ET 200S - 2 - Digital SIMATIC ET 200S Series 2 - 24 → 230 V ac 2 A - 81mm 15mm 52mm
RS Stock No. 719-1945
Mfr. Part No.750-1405
BrandWago
$277.41
Each
units
I/O SYSTEM 750 16 (Channel) - Digital - 750 Series - - 24 V dc - Input Module 67mm 12mm 100mm
RS Stock No. 508-3921
Mfr. Part No.750455
BrandWago
$517.72
Each
units
I/O SYSTEM 750 4 (Channel) - Analogue - 750 Series - - - - Input Module 100mm 12mm 64mm
RS Stock No. 667-9242
Mfr. Part No.750-459
BrandWago
$441.70
Each
units
I/O SYSTEM 750 4 (Channel) - Analogue - 750 Series - - 0 → 10 V - Input Module 100mm 12mm 64mm
RS Stock No. 614-0564
Mfr. Part No.6GK5208-0HA00-2AA6
BrandSiemens
$1,781.26
Each
units
6GK5 208 - - - - - 11 - 24 V dc - - 125mm 90mm 124mm
RS Stock No. 508-3909
Mfr. Part No.750504
BrandWago
$150.13
Each
units
I/O SYSTEM 750 - 4 - Digital 750 Series - - 24 V dc - Output Module 100mm 12mm 64mm
RS Stock No. 320-9143
Mfr. Part No.FX2N-48ER-ES/UL
BrandMitsubishi
$778.20
Each
units
FX2N Series 24 24 - - FX2N Series - - 100 → 240 V ac - I/O Module 90mm 150mm 87mm
RS Stock No. 548-066
Mfr. Part No.BMXAMM0600
$1,743.50
Each
units
Modicon M340 Series 4 2 Analogue Analogue Modicon M340 6 - 24 V dc 0 → 20 mA Mixed Analogue I/O Module 307.6mm 100mm 140mm
RS Stock No. 148-054
Mfr. Part No.BMXDDI6402K
$1,285.59
Each
units
M340 64 - Discrete - M340 Series 64 - 24 V dc - - - - -
RS Stock No. 492-963
Mfr. Part No.FX2N-2DA
BrandMitsubishi
$789.82
Each
units
FX1N Series, FX3G Series, FX3U Series - 2 - Analogue FX1N Series, FX3G Series, FX3U Series 2 - 5 V dc, 24 V dc 4 → 20 mA - 90mm 55mm 87mm
Related Products
These modules convert digital PLC values into 2 ...
Description:
These modules convert digital PLC values into 2 independent channels of analogue voltage or current outputs. 16 bit resolutionFast conversion rate improves controlBuilt-in EEPROM for storing set-up dataOnly occupies 16 PLC I/O points, great for compact systemsOutput short circuit protection ...
I/O expansion module for use with a nanoLine ...
Description:
I/O expansion module for use with a nanoLine base unit (e.g. RS stock no.: 575-018)Galvanically separatedScrew connectionTop-hat rail mountingSupply voltage 24 Vdc (via base unit)Typical supply current 50 mA, max. 90 mATypical response time AN 60 μsOutput current max. each ...
Inline block I/O modules for direct operation in ...
Description:
Inline block I/O modules for direct operation in an INTERBUS networkQuick and easy wiring using tension spring technology and removable plugsDifferent voltage areas identified by coloured printingLED display panelsBus connection via inline plugs.
The Phoenix Contact range of FL SWITCH SF ...
Description:
The Phoenix Contact range of FL SWITCH SF factory line switches have the standard functions in numerous versions. They can be used for quick and cost-effective ethernet network expansion.The IP20 SF switches have a depth of 30mm meaning you can ...