public static Messages.Response EpaymentPing(Messages.Request request) { string device = request.Parameters.Value <string>("device"); string port = request.Parameters.Value <string>("port"); string protocol = request.Parameters.Value <string>("protocol"); ConcertProtocol concertProtocol = ConcertProtocol.find(protocol); concertProtocol.Terminal = new SerialTerminal(port); concertProtocol.SendTest(); return(request.Success(true)); }