We have elements from template whose names are strings, but essentially numeric ("00", "01",...,"52", etc.). The elements have a table lookup attribute template that performs a table lookup using the element name as the key, and returns a PI tag name. This PI tag name is then used as a substitution parameter in the configuration strings of several other attribute templates.
When we change PI tag names in the AF Table, we have to reset to template these attributes that use the PI tag name lookup in their config strings, and then use the "Create or Update PI Point" option when right-clicking the attributes in PI System Explorer. Doing this manually in PSE can be time-consuming, so I've made a script that appears to do the same thing programmatically. It performs two steps - first resetting the attribute to template, and secondly updating the data reference with the new configuration string.
PISystem pisyst = new PISystems()[afservname];
AFDatabase afdb = pisyst.Databases[afdbname];
string querystr = @"Template:'mytemplatename'"
AFAttribute thisatt;
using (var elemsearch = new AFElementSearch(afdb, "PI AF SDK Attribute Search", querystr)) {
foreach(AFElement afelem in elemsearch.FindObjects(fullLoad: true))
{
foreach (AFAttribute afatt in afelem.Attributes)
{
try
{
afatt.ResetToTemplate();
afatt.DataReference.CreateConfig();
}
catch (System.ApplicationException e)
{
}
}
}
afdb.CheckIn();
return;
}
I recently discovered the AFAttribute.SetConfigString method, which can be used to reset attributes to template more efficiently than calling AFAttribute.ResetToTemplate on each attribute separately.
Does anyone know if using AFAttribute.SetConfigString to reset attributes to template also performs the functionality of AFDataReference.CreateConfig, or will I have to find another way to perform this step? If so, is there a more efficient way to do this than by retrieving each attribute's data reference separately and calling CreateConfig on it?
