Use aaHistClientTrend in an application

aaHistClientTrend is capable of running with all of the functionality of the AVEVA Historian Client Trend application.

You can also use the aaHistClientTrend control's properties, methods, and events in runtime scripts in your application to control the functionality that is available to the runtime user.

For example, maybe you want to limit the functionality of aaHistClientTrend to only allow the runtime operator to connect to an AVEVA Historian, load a set of predefined tags, and then trend them in live mode.

The following InTouch script illustrates how to log on to the server, add a tag to the trend, hide some of the navigation controls for a trend, and start the trend in live mode.

#aaHistClientTrend1.AddServer("MyInSQL", "wwUser", "wwUser", 1);

#aaHistClientTrend1.AddTag("MyInSQL", "SysTimeSec");

#aaHistClientTrend1.TagPickerVisible = 0;

#aaHistClientTrend1.TimeBarVisible = 0;

#aaHistClientTrend1.RealTimeMode = 1;