Issue
All values are not displayed in trend chart
Environment
TAC Vista
TAC Workstation
TAC Tend viewer
Cause
There is a limit of 50 000 on how many values can be displayed in one chart. So if you log often and want to display previous month (or a really long period) only the latest 50 000 values will be displayed
Resolution
There are no way around the 50 000 limit.
You have to create 2 charts