Why is the time displayed in the online trending on an MB Panel not correct?

FAQ #101302

 

Symptom
When showing an online trend in a PCD7.D4xx MB Panel (both VGA and QVGA versions) the time stamp displayed is wrong. Instead of the correct time, a date in 1970 is indicated.

Reason
The reason for this incorrect time is that the PCD7.D4xx do not feature an internal clock.

Solution
With the MB Panel firmware 1.18.28 and later this problem is solved. The clock of the PLC is then transmitted to the web panel.