protected sealed override bool CloseConnection()
{
if (base.ConnectionState == PlcConnectionState.Disconnected)
{
return(true);
}
if (this.UnderlyingPlc is null)
{
return(true);
}
IAGLink4 plc = this.UnderlyingPlc;
this.UnderlyingPlc = null;
// Remove the handlers to the event-callbacks when the connection has been interrupted.
plc.OnConnectionErrorOccured -= this.OnConnectionErrorOccurred;
plc.OnConnectAborted -= this.OnConnectAborted;
var result = plc.Disconnect();
plc.Dispose();
return(result);
}
private void OnConnectAborted(IAGLink4 sender, ConnectionEventArgs args) => base.OnInterrupted(executeReconnect: true);