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My equipment suddenly lost power, and then it was discovered that the event files were damaged. Sometimes the channel data.dat files would also get corrupted and become unopenable. In severe cases, the SCADA service couldn’t even start. So I want to store all the data in the database, such as PostgreSQL. Using the ModArcPostgreSQL module, I will store all the archives (both historical and current) in the Pg database. Then I found that the storage was successful, but there were some issues with reading from the interface. I modified the values stored in the database, but the interface did not update synchronously. What’s the reason for this? Do I need to modify the source code for reading data from database?
Hello,
Data are read from an archive, when the web interface requests the data. So new data will be displayed when a view page or chart page is refreshed.No. I have saved the current data as an archive in the database. I have modified the values of the channels in the cur_current table of the database, and refreshed the web interface and restarted all the SCADA services. However, the values still haven’t been updated.
May be data is read from another current data archive. When the Server service starts it reads data from the first active archive of current data.
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