Parameter data transfer
Structure of the parameter data telegram
10
l
75
EDSMF2178IB EN 3.0
Error messages
User data (up to 8 bytes)
Byte 1 2nd byte 3rd byte Byte 4 Byte 5 Byte 6 7th byte Byte 8
Command
Index
Low byte
Index
High byte
Subindex Error code
ƒ Byte 1:
Code 128 or 0x80 in the command byte indicates that an error has occurred.
ƒ Bytes 2 ... 4:
These bytes contain the index (bytes 2 and 3) and the subindex (byte 4) of the code
in which the error has occurred.
ƒ Bytes 5 ... 8:
The data bytes 5 ... 8 contain the error code. The error code is described in reversed
direction compared to the read direction.
Example: Representation of the error code 0x06040041 in bytes 5 ... 8
Read direction of error code
0x41 0x00 0x04 0x06
Byte 5 Byte 6 7th byte Byte 8
Low word High word
Low byte High byte Low byte High byte
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