WinCC (TIA Portal) trend request, trend transfer

Hello,

I am currently working on a project to create a graph using an array. The main goal is to use a trend to form a curve from the array and then overwrite the curve once new data populates the array (basically a still graph that updates once new data comes in). I am assuming I should use a bit triggered buffer trend to accomplish this, could anyone explain how the trend request and trend transfer works? It would be greatly appreciated. 

_Hi Look at

your other Threat i wrot you answer:

https://support.industry.siemens.com/tf/de/en/posts/130619/

Bye Murof

Closed cause question posted twice.

The second thread with the subject WinCC v11 Advanced Trend is published within the conference SIMATIC WinCC (TIA Portal).

Best regards
Min_Moderator