Upgrade of IEC61850 Connection Object Model

With Desigo CC V5.1, the IEC61850 connection objectmodel, 'GMS_IEC61850_Connection', which uses the internal DPT '_IEC61850_IED' provided by WinCCOA Platform is replaced with a new objectmodel 'GMS_IEC61850_Connection_1' which is an exact replica of '_IEC61850_IED'. The instances of GMS_IEC61850_Connection created in projects till V5.0 will be upgraded automatically to 'GMS_IEC61850_Connection_1' in V5.1 and later versions without any user intervention.

The object model upgrade process is triggered automatically when you upgrade your project to V5.1 and start the project for the first time in SMC. The upgrade process is triggered only when the drivers monitoring the old IEC61850 connection instances are in either the 'Started' or 'Configuration' states. If the drivers are not in either of the states, the system will monitor the driver's state after periodic time intervals.

If the upgrade process fails due to certain reasons, there will be two or more retries to upgrade the failed instances. The logs related to success and failure will be logged in a file located at <ProjectFolder>/log/IECConnectionOMUpgrade_Log_<TimeStampValue>.

If the upgrade process is not triggered automatically or fails at some point after multiple retries, then in order to trigger the upgrade process again, you must restart the project with a valid IEC61850 license and all the IEC drivers must be in either the 'Started' or 'Configuration' states. You can identify a failure in the upgrade process or a failure to trigger the upgrade process when you observe a loss of communication with field devices and thereafter checking the log file for such instances.