private void init(ProtocolOpRS232 rs232 = null, ProtocolOpCAN can = null, ProtocolOpDataType dataType = null)
 {
     DataType = dataType ?? new ProtocolOpDataType();
     RS232    = rs232 ?? new ProtocolOpRS232();
     CAN      = can ?? new ProtocolOpCAN();
 }
 public ProtocolOp(ProtocolOpRS232 rs232 = null, ProtocolOpCAN can = null, ProtocolOpDataType dataType = null)
 {
     DataType = dataType ?? new ProtocolOpDataType();
     RS232    = rs232 ?? new ProtocolOpRS232();
     CAN      = can ?? new ProtocolOpCAN();
 }