Emerson VSG & VSSG Software Manual page 66

Troubleshooting:
Problem: Trend charts no longer display historical data but only update with real-time data which re-
initializes each time the chart is displayed.
Cause: Time and/or Date of HMI was changed so logged data file cannot be sensible.
Solution: From the Vilter Only screen (password protected) Clear the log files of the PanelView.
a. Touch or scroll to the File Management field then touch the Enter button.
b. Touch or scroll to the Delete Files field, then touch the Enter button
c. Touch or scroll to the Delete Log Files field and touch the Enter button.
DO NOT DELETE APPLICATIONS! DO NOT DELETE FONTS!
d. Touch "Yes" to delete the log files.
e. Touch the Close button twice to return to the Terminal Settings screen.
f. Touch the Close button again to exit the Terminal Settings screen.
g. Touch the Reset button then the Yes button to reset the PanelView
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