This property sets/gets the active relays by index into the relay list.  1..Count.


% Create DSS object

DSSObject = actxserver('OpenDSSEngine.DSS')

if ~DSSObject.Start(0),

                    disp('Unable to start openDSS');



DSSText = DSSObject.Text;

DSSCircuit = DSSObject.ActiveCircuit;

% Compile a model        

DSSText.Command = 'Compile C:\myPath\myModel.dss';

DSSRelays = DSSCircuit.Relays;

% Activates the first relays on the list

i = DSSRelays.First;

% gets the idx of the active relay

myIdx = DSSRelays.idx;