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 Prix 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
N° de stock RS 787-7970
Référence fabricant6ES7231-4HF32-0XB0
MarqueSiemens
347,00 €
Each
Unité
SM 1231 8 - Analogue Analogue SIMATIC S7-1200 Series - - 24 V dc - - 100mm 45mm 75mm
N° de stock RS 787-7961
Référence fabricant6ES7223-1PL32-0XB0
MarqueSiemens
262,00 €
Each
Unité
SM 1223 16 16 Digital Relay SIMATIC S7-1200 Series 32 - 24 V dc 2 A - 100mm 70mm 75mm
N° de stock RS 787-7986
Référence fabricant6ES7234-4HE32-0XB0
MarqueSiemens
311,00 €
Each
Unité
SM 1234 4 2 Analogue Analogue SIMATIC S7-1200 Series 6 - 24 V dc 0 → 20 mA - 100mm 45mm 75mm
N° de stock RS 735-2904
Référence fabricant6ES7241-1CH30-1XB0
MarqueSiemens
78,80 €
Each
Unité
S7-1200 - - - - S7-1200 Series - - - - - 62mm 38mm 21mm
N° de stock RS 735-2884
Référence fabricant6ES7231-4HA30-0XB0
MarqueSiemens
60,90 €
Each
Unité
SIMATIC S7-1200 1 - Analogue, Differential - SIMATIC S7-1200 Series 1 - 5 V dc - - 62mm 38mm 21mm
N° de stock RS 787-7964
Référence fabricant6ES7223-1BH32-0XB0
MarqueSiemens
165,00 €
Each
Unité
SM 1223 8 8 Digital Digital SIMATIC S7-1200 Series 16 - 24 V dc 500 mA - 100mm 45mm 75mm
N° de stock RS 662-3678
Référence fabricant6ES7151-3AA23-0AB0
MarqueSiemens
273,00 €
Each
Unité
ET200S - - - - ET200S Series - - 24 V dc - Interface Module 119.5mm 60mm 75mm
N° de stock RS 746-5772
Référence fabricant6ES7222-1BD30-0XB0
MarqueSiemens
60,90 €
Each
Unité
6ES7 Series - 4 - Digital, Transistor S7-1200 Series 4 - 24 V dc 50 mA - 62mm 38mm 21mm
N° de stock RS 735-2910
Référence fabricant6GK7243-5DX30-0XE0
MarqueSiemens
420,00 €
Each
Unité
S7-1200 - - - - S7-1200 Series - - - - - 100mm 30mm 75mm
N° de stock RS 453-2517
Référence fabricant6ES7321-1BH02-0AA0
MarqueSiemens
185,94 €
Each
Unité
SIMATIC S7-300 Series 16 - Digital - SIMATIC S7-300 Series 16 - 20.4 → 28.8 V dc - - 125mm 40mm 120mm
N° de stock RS 453-2624
Référence fabricant6ES7322-1BL00-0AA0
MarqueSiemens
504,00 €
Each
Unité
SIMATIC S7-300 Series - 32 - Digital S7-300 Series 32 - 20.4 → 28.8 V dc 500 mA - 125mm 40mm 120mm
N° de stock RS 810-4147
Référence fabricant6ES7231-5PD32-0XB0
MarqueSiemens
299,00 €
Each
Unité
SM 1231 4 - Analogue - CPU 1211, CPU 1212, CPU 1214 4 - 24 V dc - - 100mm 45mm 75mm
N° de stock RS 662-3167
Référence fabricant6ES7131-4BD01-0AA0
MarqueSiemens
27,20 €
Each
Unité
SIMATIC ET 200S 4 - Digital - SIMATIC ET 200S Series 4 - 24 V dc - - 81mm 15mm 52mm
N° de stock RS 810-4153
Référence fabricant6ES7231-5QD32-0XB0
MarqueSiemens
299,00 €
Each
Unité
SM 1231 4 - Analogue - CPU 1211, CPU 1212, CPU 1214 4 - 24 V dc - - 100mm 45mm 75mm
N° de stock RS 787-7977
Référence fabricant6ES7232-4HD32-0XB0
MarqueSiemens
360,00 €
Each
Unité
SM 1232 - 4 Analogue Analogue SIMATIC S7-1200 Series - - 24 V dc 0 → 20 mA - 100mm 45mm 75mm
N° de stock RS 662-3561
Référence fabricant6ES7138-4CA01-0AA0
MarqueSiemens
14,40 €
Each
Unité
ET200S - - - Current, Potential, Voltage ET200S Series - - 24 V dc - Power Module 81mm 15mm 52mm
N° de stock RS 787-7945
Référence fabricant6ES7221-1BH32-0XB0
MarqueSiemens
165,00 €
Each
Unité
SM 1221 16 - Digital - SIMATIC S7-1200 Series - - 24 V dc - - 100mm 45mm 75mm
N° de stock RS 453-2539
Référence fabricant6ES7322-1BH01-0AA0
MarqueSiemens
257,28 €
Each
Unité
SIMATIC S7-300 Series - 16 - Digital SIMATIC S7-300 Series 16 - 20.4 → 28.8 V dc 4 A - 125mm 40mm 120mm
N° de stock RS 787-7949
Référence fabricant6ES7222-1BF32-0XB0
MarqueSiemens
104,00 €
Each
Unité
SM 1222 - 8 Digital Digital SIMATIC S7-1200 Series - - 24 V dc 500 mA - 100mm 45mm 75mm
N° de stock RS 662-3567
Référence fabricant6ES7134-4JB51-0AB0
MarqueSiemens
199,00 €
Each
Unité
SIMATIC ET 200S 2 - Analogue - SIMATIC ET 200S Series 2 - 24 V dc - - 81mm 15mm 52mm