@yannikes I gave up on this topic since I found no solution.
And besides retrieving the robotlogs was not the best solution. In case there are many logs it can be that the API does not deliver all logs.
My workaround, which is working fine:
- reading the .txt log execution file on the machine every day (for each robot)
- saving the relevant data in a data table
- uploading the data into our data storage