Below are a number of examples of how to connect change the language on an operator panel.

1.Define project languages and Runtime language
2.Direct language selection via button
3.Language selection via selection list (symbolic I/O field)
4.Output/display of current language
5.Evaluation via the PLC to determine the language selected on the operator panel
6.Language selection via PLC
https://support.automation.siemens.c...ard&viewreg=WW

Chúc các bạn vui vẻ :p