Modbus scanner not working? Siemens HMI implementation.

Hello,

I am trying to use the Modbus IP lib to connect to an Siemens HMI.

As of now no luck to get it working.

After a lot of testing, I found out that I could not make a connection with the CAS modbus scanner. 

If someone can help me further, it would be very appreciated

Kind regards,
Raphael
