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 833 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. 810-4153
Mfr. Part No.6ES7231-5QD32-0XB0
BrandSiemens
€390.00
Each
units
SM 1231 4 - Analogue - CPU 1211, CPU 1212, CPU 1214 4 - 24 V dc - - 100mm 45mm 75mm
RS Stock No. 787-7955
Mfr. Part No.6ES7222-1HH32-0XB0
BrandSiemens
€215.80
Each
units
SM 1222 - 16 Digital Digital SIMATIC S7-1200 Series - - 24 V dc 2 A - 100mm 45mm 75mm
RS Stock No. 698-7607
Mfr. Part No.1762-IF20F2
€338.12
Each
units
MicroLogix 1200 2 2 Analogue, Differential Analogue MicroLogix 1200 Series 4 - - 4 → 20 mA - - - -
RS Stock No. 901-0817
Mfr. Part No.2903806
€571.62
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. 147-641
Mfr. Part No.BMXDDO1602
€139.38
Each
units
M340 - 16 - Discrete, Transistor M340 Series 16 - 24 V dc - - - - -
RS Stock No. 455-6822
Mfr. Part No.QX80
BrandMitsubishi
€188.50
Each
units
MELSEC Q 16 - Digital - MELSEC Q Series 16 - 24 V dc - - 98mm 27.4mm 90mm
RS Stock No. 901-0826
Mfr. Part No.2903805
€590.47
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. 810-4147
Mfr. Part No.6ES7231-5PD32-0XB0
BrandSiemens
€390.00
Each
units
SM 1231 4 - Analogue - CPU 1211, CPU 1212, CPU 1214 4 - 24 V dc - - 100mm 45mm 75mm
RS Stock No. 698-7776
Mfr. Part No.1763-L16BWA
€431.00
Each
units
1763 2 (Analogue), 4 (Fast 24 V dc), 6 (24 V dc) 2 (Fast FET), 2 (FET), 2 (Relay) Analogue Relay MicroLogix 1100 Series 18 Ethernet - - - 87mm 110mm 90mm
RS Stock No. 405-6209
Mfr. Part No.4825 0093
BrandSocomec
€183.44
Each
units
- - 4 - Analogue - - - - - - - - -
RS Stock No. 828-5252
Mfr. Part No.6ES7231-4HD32-0XB0
BrandSiemens
€279.50
Each
units
6ES7231 4 - Analogue - SIMATIC S7-1200 4 - 24 V dc - - 100mm 45mm 75mm
RS Stock No. 735-2904
Mfr. Part No.6ES7241-1CH30-1XB0
BrandSiemens
€104.00
Each
units
S7-1200 - - - - S7-1200 Series - - - - - 62mm 38mm 21mm
RS Stock No. 714-0108
Mfr. Part No.1766-L32BXB
€531.18
Each
units
1766 20 12 Digital Relay MicroLogix 1400 Series 32 Ethernet - - - 87mm 180mm 90mm
RS Stock No. 751-1295
Mfr. Part No.1763-L16DWD
€431.00
Each
units
MicroLogix 1100 6 6 Analogue Relay MicroLogix 1100 Series 6 Ethernet 12 → 24 V dc - - - - -
RS Stock No. 698-7745
Mfr. Part No.1769-IF8
€548.15
Each
units
MicroLogix 1500 8 - Analogue - MicroLogix 1500 Series 8 - 30 V ac/dc - - 118mm 52.5mm 87mm
RS Stock No. 698-7723
Mfr. Part No.1769-IQ32
€298.88
Each
units
MicroLogix 1500 32 - Digital - MicroLogix 1500 Series 32 - 24 V dc - - - - -
RS Stock No. 508-3959
Mfr. Part No.750600
BrandWago
€15.78
Each
units
I/O SYSTEM 750 - - - - 750 Series - - - - End Module 100mm 12mm 64mm
RS Stock No. 787-7961
Mfr. Part No.6ES7223-1PL32-0XB0
BrandSiemens
€341.90
Each
units
SM 1223 16 16 Digital Relay SIMATIC S7-1200 Series 32 - 24 V dc 2 A - 100mm 70mm 75mm
RS Stock No. 698-7540
Mfr. Part No.1769-IQ16
€169.65
Each
units
MicroLogix 1500 16 - Digital - MicroLogix 1500 Series 16 - 24 V dc - - - - -
RS Stock No. 320-9109
Mfr. Part No.FX2N-16EX-ES/UL
BrandMitsubishi
€220.35
Each
units
FX2N Series 16 - Digital - FX2N Series - - 24 V dc - Input Module 90mm 40mm 87mm
Related Products
The BMX AMI 0410 module is a high-level ...
Description:
The BMX AMI 0410 module is a high-level analogue input module with 4 isolated inputs (16 bits) Used with sensors or transmitters, it performs monitoring, measurement and process control functions for continuous processes.The module operates with voltage inputs. It includes ...
Depending on the choice made during configuration, the ...
Description:
Depending on the choice made during configuration, the modules offer, for each of the inputs, the following range: Temperature probe: Pt100, Pt1000, Cu10, Ni100 or Ni1000, with open-circuit detection Thermocouple: B, E, J, K, L, N, R, S, T or ...
The Siemens digital expansion module with 4 input ...
Description:
The Siemens digital expansion module with 4 input channels is a highly efficient device used with SIMATIC ET 200S PLCs It has various advanced features like diagnostics indication LEDs, reverse voltage protection and potential isolation between the channels and the ...
Digital input and outputs for the ET 200SConnect ...
Description:
Digital input and outputs for the ET 200SConnect to terminal modules TM-E with automatic encryption High-spec version for increased system availability, additional functionality and extensive diagnostics Module exchange during operation subject to voltage (hot swapping)