As shown below, the Header includes a starting sequence of bytes, message type, and payload length. The starting sequence is a fixed sequence of 4 bytes (‘0xFFFEFDFC’). The starting sequence assures the message processing logic that it is reading the beginning of a message from the input buffer, and if it is not, permits the processing logic to scroll the input buffer to the beginning of the next message in the case of an error. The message type is a 12 character string. The payload length is 4 bytes.