It is sometimes necessary to change device settings programmatically. For example, you would like the HMI to be able to change the PLC IP Address, or set the TimeZone. This can be done using the Codesys library WagoAppConfigTool. See screenshot below.
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How is this method different from the PLC web page method (*/wbm/)?
There is no difference, because both methods use the same scripts from /etc/config-tools. In WBM, they are called by PHP