private static void WriteSignal(XmlTextWriter xWriter, ISignal signal)
{
xWriter.WriteStartElement("Name");
xWriter.WriteString(signal.GetSignalName());
xWriter.WriteEndElement();
xWriter.WriteStartElement("Port");
xWriter.WriteString(signal.GetPortNumber().ToString());
xWriter.WriteEndElement();
xWriter.WriteStartElement("ChannelName");
xWriter.WriteString(signal.GetChannelName());
xWriter.WriteEndElement();
}