Data Logging Issue in Siemen WinCC RT Professional

[JesperMP]

So reading and logging are both at 7:00:03.
That is still not ok. Reading a value to the HMI from the PLC does not happen instantaneously.
You need to allow the HMI time to read the value from the PLC.

You can do the logging "on change" or you could offset the times like this:
7:00:00 PLC writes new value into the tag.
7:00:05 HMI reads the tag.
7:00:10 HMI logs the value.

edit: You are actually not informing how the tag is being read by the HMI.
post a screenshot of the setup of the tag in WinCC.

 

[Aleem128]

That sound rational, I will try this setting and update you.
Thanks

 

[Aleem128]

Logging on change

I changed the logging time to 7:01:00 but still same problem persists. I then configured logging on change now the values are correct but sometime 2 rows are added in table with same time stamp.