code: static RFLData newForTransmitOnlyDevice(final boolean batteryOk, final int frameType,
  		final int frameNumber, final byte[] serial, final GroupAddress dst, final byte[] tpdu)
  	{
  		return new RFLData(batteryOk, true, frameType, frameNumber, serial, new IndividualAddress(
  				0x05ff), dst, tpdu);
  	}
docs: - datapoints shall be numbered as DP1 = GroupAddr 0x0001, DP2 = 0x0002, ...