Representing data in curves/graphs?

[Utkrist]

Hello All,

I was wondering if its possible to read from .csv file and represent its data using a graph or a curve through the server. I could not find anything regarding this in the documentation or the demo server.

Best Regards,
Utkrist

[Support Team]

Hi,

the data source of an OPC UA server (we call data-provider) can be anything (a file, a database, memory, other protocol). One server can have multiple data-providers representing multiple data sources. You just need to implement the data-provider, which we have 2 APIs for (NodeManager and IOManager).
The server can present (historical) data trough it's HA services, which allow clients to read data values over a time period (from start to end date), including simple aggregates (min, max, mean, median, etc.).

Using UaExpert (add document -> "History-Trend-View") you can graphically display such historized values as provided by the server.