Hello again!
Thanks for your fast response. I tied your proposal. Success! If all points are set to " Do not log" I still get the "0x0" so I tried set points to log and the Data source to not log anything and the fail disappeared. Now i can see other problems diving up in an reasonable way. I will continue my investigation what are causing the problems. Possibly its due to bad wiring or severe disturbances from source.
Will post later what finding I get.
Thanks again.