code: public short readUnsigned(GroupAddress dst, String scale)
  		throws KNXTimeoutException, KNXRemoteException, KNXLinkClosedException,
  		KNXFormatException
  	{
  		final byte[] apdu = readFromGroup(dst, priority, 1, 1);
  		final DPTXlator8BitUnsigned t = new DPTXlator8BitUnsigned(scale);
  		extractGroupASDU(apdu, t);
  		return t.getValueUnsigned();
  	}
docs: /* (non-Javadoc)
  @see tuwien.auto.calimero.process.ProcessCommunicator#readUnsigned
  (tuwien.auto.calimero.GroupAddress, java.lang.String)