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Modbus TCP example/tutorial
tutorial
about
This is just a small patch that explain the basics of modbus TCP.
Modbus, and now Modbus TCP is a wide spread industrial protocol which allows you to control or get data from many industrial device such as :
- Motor driver
- Relay board
- Some rotary encoder
- Wide list of sensors
...
This protocol as been invented by Modicon company (Schneider Electric) but it's openly published and royalty-free.
This patch explain the modbus TCP only, but with a simple converter you can also control RS485 modbus devices.
Hope this will help some of you.
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~2d ago
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@Rogerlette
I have try for fun with
http://www.gefran.com/it/product_categories/146-gf_vedo-ml(rc94)/products/274-gf_vedo-ml-65ct
without lucky...
the device is connect on my port with the right address, i have set lenght,unit id and fct code...but i can't read or write nothing...
Hi Noir, sorry I did not saw your comment before... I did not receive any email to warn me.. Anyway, if you want to try again can you send me the user manual? I have to suscribe to the website to get it...