Error message: "BadNotSupported" when writing from an UA client to a DA server

Browsing and reading values from an UA OPC Client to the configured DA OPC server work fine. However writing of an OPC item is acknowledged with "BadNotSupported".

The Softing dataFEED UA Client transmits an OPC item with time stamp, quality and value per default.

According to the OPC specification, writing the time stamp and quality is optional. 
Some DA OPC server doesn’t support it. If the underlying DA OPC server doesn’t support writing the time stamp and quality, then writing is acknowledged negatively with the error message "BadNotSupported".

Workaround:
You can configure in the XML configuration file of the dataFEED OPC Suite whether writing of the time stamp and quality should be transferred to the underlying DA OPC server or not.

To do this, please open the XML configuration file:
C:\ProgramData\Softing\dataFEED OPC Suite\<Configurationname>\OSF_Runtime.XML

In the "UA_Server" section, change the line as follows:
<UA_Server RebrowseTimeoutInterval="10000" Enabled="true" WriteFiltering="V">

With this entry, WriteFiltering="V", only the value of the OPC item is transferred without time stamp and quality.

Please save the XML configuration file, and then restart the dataFEED OPC Suite.