Appendix
General information about the system bus (CAN)
Parameter data transfer
14
455
EDBCSXA064 EN 3.2
14.7.4.2 Error messages
User data (up to 8 bytes)
1st byte 2nd byte 3rd byte 4. byte 5. byte 6. byte 7. byte 8. byte
Command
Index
Low byte
Index
High byte
Subindex Error code
ƒ Byte 1:
In the command byte, the code 128 (0x80) indicates that an error has occurred.
ƒ Bytes 2 ... 4:
In these bytes the index (byte 2 and 3) and subindex (byte 4) of the code in which an
error occurred are entered.
ƒ Bytes 5 ... 8:
In the bytes 5 ... to 8 the error code is entered. The structure of the error code is reversed
to the read direction.
Example: Representation of the error codes 0x06040041 in the bytes 5 ... 8
Read direction of the error code
41 00 04 06
5. byte 6. byte 7. byte 8. byte
Low word High word
Low byte High byte Low byte High byte
Possible error codes:
Command 7th byte 8th byte Meaning
80
hex
6 6 Wrong index
80
hex
5 6 Wrong subindex
80
hex
3 6 Access denied
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