Modbus RTU Master With Arduino Via RS232

by Jhon_Control in Circuits > Arduino

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Modbus RTU Master With Arduino Via RS232

Arduino Master Modbus RTU - RS232.jpg

In the previous test, performs the communication between Arduino Mega 2560 and a Modbus simulator slave THROUGH the USB port that commonly have our arduino, in this case we will test with an Arduino as Master Modbus but via RS-232 with our PC - simulator modbus slave.

More info:
Blog PDAControl English

Blog PDAControl Español

Modbus Master Arduino Test Part 1

Arduino Master Modbus In 5 Minutes ....  : PDA_Control
Arduino Modbus - PC RS232.jpg
materiales.jpg

Arduino simple test via Modbus RTU Master to the PC via USB


Components and materials required for testing

1 Arduino MEGA 2560 R3

1 Display Oled 128 x 64 I2C

1 Protoboard

Wires

1 converter RS-232 a TTL MAX3232

​MAX232

max2.jpg
max1.jpg
circuit_232.jpg

MAX232 is used, voltage converter TTL to RS232

Final Test

Arduino Master Modbus RS-232 In 5 Minutes .. : PDA_Control

More INFO:

Blog PDAControl English
Blog PDAControl Español

Instructables

https://www.instructables.com/id/Modbus-RTU-Master...

Github

https://github.com/JhonControl/Arduino_Modbus_Mas...

Thanks to the creator of the library smarmengol.

Gracias al creador de la libreria smarmengol.