Description
ABB KUC711AE01 3BHB004661R0001 System Module Framework
ABB KUC711AE01 3BHB004661R0001 Mode Message transmission starts with a pause interval of at least 3.5 character times. During transmission, the network device continuously detects the network bus, including during the pause interval. When the first field (address field) is received, the corresponding device decodes the next transmitted characters and indicates the end of the message as soon as there is a pause of at least 3.5 character time.
ABB KUC711AE01 3BHB004661R0001 The host or slave can use the checksum to determine whether the received message is in error. The error detection field contains a 16 Bits value (implemented as two 8-bit characters). The content of the error detection field is derived from the cyclic redundancy detection method of the message content.The CRC field is appended at the end of the message, and is added first to the low byte and then to the high byte. Therefore, the high byte of the CRC is the last byte of the message sent.