Transfer of analog values from and to the PROFIBUS DP slave

QUESTION: The analog values are transferred only in part or not at all. How can I clear this problem? ANSWER: If none or only part of the analog values are transferred, or the transferred values are incorrect, then this might have something to do with the length of the consistent data of the slave (affects S7-300/400 CPUs).If more than 4 bytes (or exactly 3 bytes) are consistent over the entire