System alarm: Log full for TAC Xenta devices

System alarm: Log full for TAC Xenta devices


After conversion from TAC Vista to EcoStruxure Building Operation (EBO) the System alarm "Log full" is seen in the Alarm list for trend logs in TAC Xentas

Product Line

EcoStruxure Building Operation


  • Building Operation Enterprise Server
  • Building Operation Automation Server


This issue is only seen after conversion from TAC Vista to EBO and probably caused by a calculation mismatch between the Extended Trend log (ET log) in EBO and the Xenta trend log.


To get rid of this issue a "Clear trend log" must be done on the Xenta trend log and then a download completed on the TAC Xenta.

  1. Before doing the "Clear trend log" make sure that all log values are saved in the ET log
    Right-click on the ET log go to "Activation" and "Force transfer"
  2. Right-click on the Xenta log go to "Activation" and do a " Clear trend log"
  3. Right-click on the TAC Xenta go to "Commission", mark the option "Application download" and click "Commission"
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