Deleted trendlogs when downloading a Menta application?

Issue

Are the trendlogs in the Xenta deleted when downloading a Menta application?

Product Line

TAC Vista

Environment

  • Vista 5.1.7
  • Menta 5.1.7
  • Xenta programmable controllers

Cause

When performing system updates to the either the logic of a Xenta programmable controller, or the firmware, it is important to know which of these actions will affect the stored Xenta trend log information inside the controller.

Resolution

  1. Downloading a Menta application to a Xenta does not affect the trendlogs. They are saved in the Xenta.
  2. Downloading a Xenta firmware revision will delete all trend log data.