Compact HMI Lab Data Functionality
Under the storage tab, it says "Number of". Number of what?? Samples? KB? MB?
Also, when I go to try to read the data from an instance in the control structure, clicking "read" does nothing, while the read for a direct log lists the values properly.
An explanation would be great. Thanks!
Over the time, I have made a couple of long essays about lab logs here on AKS with images, etc.
Did you try searching? The hosted search engine is terrible, I know..., this is further deteriorated by the move/renaming of the site a couple of years ago making it harder for external search engines like Google..
Try searching on my "full name abb aks lab log", I just found some matches incl images(!) from those old postings.
- A lab log will not collect data on its own
- A lab log accept OPC HDA manipulation, eg insertion from Calculations (which can be scheduled or triggered by OPC DA)
- Capacity decides size of the ring buffer hosted by Basic History
- Data can eg. be retrieved by Data Direct and presented in Excel reports