Sry my friend,

if everyone from us has free time, can help you, point you or give idea. Other side is your work, pls understand this. I'm very sry. But really waiting for your result of investigation, maybe problem is very trivial...

thank you so much i will try again and again in order to find the issu 

Hi Souhailos,

Can You tell us how did you resolv the problem.

Thank you.

dla_972

Hi Souhailos,

Can You tell us how did you resolv the problem.

Thank you.

Good morning,
I had the same problem and my connection was fine.
But I didn't know where to enter the slave module number.
I have the answer:
You have to go to the MB_Client instance data block and 
change the address of MB_unit_ID which is 255 by default.
​

For each slave module, it will be necessary to create an
 instance db in y by replacing the slave address

Hello, Could You give some help how You have solved Your problem?

Regards