andresarmento / modbus-arduino

A library that allows your Arduino to communicate via Modbus protocol, acting as a slave (master in development). Supports serial (RS-232, RS-485) and IP via Ethernet (Modbus IP).
BSD 3-Clause "New" or "Revised" License
453 stars 267 forks source link

Modbus scanner not working? Siemens HMI implementation. #34

Open Raph-ELAB opened 6 years ago

Raph-ELAB commented 6 years ago

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