RT Datalogger - table name & synchronization

PLCnext Technology & PLCnext Controls
1

Hello,

                                               1. Is there a parameter in RT Datalogger configuration where you can specify the name of the SQLite table in which the data will be saved?

Or is it possible to determine how such a table will be named before running the datalogger and reading the database manually?

                                               2. Is there any way to synchronize data logger sampling with RTC? For example, I want to save a parameter every 1 minute and I want the sample to be taken at a full minute.
2

Hello Konrad,

                                               1. The names of the tables are generated by the data logger service and cannot be changed. I think this feature can be implemented in the next DL-Service, if it is importand for the application.
                                               2. I assume it should be possible to define the logged variables in a Event-Task with task-triggering every minute. (The DL-Service will be triggered by the task cyclic time)

Best Regards Eduard

3

Does this name depend on a specific service instance, physical driver etc? Will the same program and the same datalogger configuration file uploaded to another controller create a table with the same name?

4

For example, the table name ist: “log_changes_3386042011”. The number is the CRC, the DL-Service checks if the layout has changed. Yes, the same program and the same datalogger configuration file uploaded to another controller should create a table with the same name.