WINCC V8.0 shows continuous trend lines

 Dear Expert,

WINCC V8.0 showing trend lines continous. In wincc V7.0, it was upon change. Please guide.

Swarley92

Hi!

It seems that, according to the video, the data is in the database. Try updating to the latest available version of WinCC V8 and regenerate the DFC file.

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Split from trend values missed or not logging for some time in Wincc v8.0.

Amit Antil

 Dear Expert,

WINCC V8.0 showing trend lines continous. In wincc V7.0, it was upon change. Please guide.

Swarley92

Hi!

It seems that, according to the video, the data is in the database. Try updating to the latest available version of WinCC V8 and regenerate the DFC file.

 

 Hlo Muktdir,

Are you getting the trend report as pic. If not please guide me.

Can you please share your email id so that i can discuss with you on anothers issues.

Muktdir

Thanks for reply.

Now, I have installed update 4 of Wincc v8.0, and followed the steps for DCF files removal as per the link. I have also duplicated the project with project duplicator and checked DCF files as per link, and running this new duplicated backup.

But problem is still there, what I observed that when I use "move trend range" option from the toolbar and move it fast to see the previous data, then this ramp is occurring.

if I use "move trend range" option from the toolbar and move it slow to see the previous data, then the trend is okay (no ramp is there).

If I use the previous data record (left arrow) option in the toolbar and check the data then also it is working ok, all the data is coming properly.

so, the Conclusion i found is the data from the database is not able to load fast in the trend as i move it fast.

I have attached the videos, you can check.

But this problem is not coming in their old system as this is migrated backup from wincc v7.0

I also checked the backup by running it in Wincc v7.3 and it was working ok.

My Current system is totally new fresh PC, with i7 processor, Windows 10 LTSC, SSD Storage and 16 GB RAM. with software wincc v8.0 update 4, SImatic Net V18.

The problem is that the SCADA Operator, who is using the old system from past 8-10 years, is not ready to move the trend slowly in the new upagraded system.

Thanks & Regards

Muktdir