private static void EnableOperationModeEdl40(string portName, SmlComServiceClient proxy, Guid clientGuid, DateTime newTime)
{
Console.WriteLine("Enabling EDL40 mode with new meter time: " + newTime);
proxy.EnableOperationModeEdl40(clientGuid, portList.FirstOrDefault(m => m.ComPortName == portName), newTime);
var booleanResult = proxy.ReadIsOperationModeEdl40(clientGuid, portList.FirstOrDefault(m => m.ComPortName == portName));
Console.WriteLine("Operation mode read: " + Stringify(booleanResult));
var meterTimeResult = proxy.ReadDateAndTime(
clientGuid, portList.FirstOrDefault(m => m.ComPortName == portName));
Console.WriteLine("Meter time read: " + Stringify(meterTimeResult));
Console.WriteLine();
}