system_version - SYSTEM_VERSION option
When the ODABA system version has been changed, i.e. when the internal ODABA schema has been expanded, one may run older ODABA versions of a dictionary by defining the old system version number. The version value must be set before opening the data source.
Usually, only the previous system version can be accessed this way in order to upgrade from the previous version to the next version.
Usually, this value is set in the configuration or ini-file in the SYSTEM_VERSION option for the data source definition.
Default: current system version
SYSTEM_VERSION=21
Type: uint16