private CEMILData adjustMsgType(final CEMILData msg) {
final boolean srcOk = msg.getSource().getRawAddress() != 0;
// just return if we don't need to adjust source address and don't need LDataEx
if ((srcOk || medium.getDeviceAddress().getRawAddress() == 0)
&& (medium instanceof TPSettings || msg instanceof CEMILDataEx)) return msg;
return CEMIFactory.create(srcOk ? null : medium.getDeviceAddress(), null, msg, true);
}
