» Modbus TCP example/tutorial
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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.

download

Modbus TCP in V4.v4p
07.11.13 [08:26 UTC] by rogerlette | 890 downloads

Noir 07/11/2013 - 21:41

@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...

rogerlette 30/07/2014 - 16:59

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...

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