I have recently started playing around with development using the PI AF SDK and C#. I have been looking for a way to connect to only one member of a PI Collective. I have been testing the following code snippet, but I am not sure if this is the best way of doing it.
static void Main(string[] args)
{
string piServerName = "myCollectiveName";
PIServers myPIServers = new PIServers();
PIServer myPIServer = myPIServers[piServerName];
try
{
if (myPIServer.Collective.Members.Count > 1)
{
Console.WriteLine(myPIServer.Collective.Members.Count);
//Connect to a specific collective member name.
PICollectiveMember myPiCollMember = myPIServer.Collective.Members["myMemberName"];
Console.WriteLine("The currently connected collective member name is: {0}", myPiCollMember.Name);
}
}
catch (Exception ex)
{
Console.WriteLine($"Error connecting to PI Server: {ex.Message}");
}
finally
{
myPIServer.Disconnect();
}
}This seems to work, and I can specify the member to connect to. My use case for wanting to control the collective member is to pull data only from a specific member where historic archives from more then 10 year back are connected. Please let me know if there are better ways of doing this.
