Question: The first five bytes in the first data block received from the serial device when beginning the communication are always missing. I have also tried to reboot the DS 202 with the 'E' command, but with the same result. Why is this?
Answer: One of the most probable reasons is that both setup values - Start on any char and Use Start character are set to NO. This way, the DS doesn't have a specific char to start from, and also doesn't start on the first char and you lose a few bytes in the beginning.
