I-7530, I-7530A, I-7565, I-7530-FT, tM-7530, tM-7530A, tM-7565 User Manual Version 1.6
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4.13 Error Code
If the CAN converter has enabled the "Error Response" function of the UART
setting in section 3.2, the CAN converter will reply error messages to the device or
computer via RS-232/RS-485/RS-422/USB. The meaning of the error code message as
below table:
Table: Error code
Error
code
Description
Possible causes & solutions
1
Invalid
header
RS-232/RS-485/RS-422/USB command character headers are
not the following command characters:
"t","T","e","E","S","C","P0 ", "P1", "P2", "P3" or "RA"
2
Invalid
length
The data byte of the CAN message does not conform to the
CAN data length, for example:
Error: t0015
12345
<CR>
Correct: t0015
0102030405
<CR>
3
Invalid
checksum
The checksum of the RS-232/RS-485/RS-422/USB command
string is error, for example:
Error: t00121122
09
<CR>
Correct: t00121122
FD
<CR>
4
Reserved
None.
5
Timeout
The ASCII command string was not sent completely, for
example, the <CR> ending character was missing.
Error: T0018
Correct: T0018
<CR>
When the CAN converter wants to transfer the data from the UART side to the CAN
side, if the baud rate of the CAN is different from the baud rate of the CAN network, the
ON LED of the CAN converter will flash at a constant frequency, and the CAN converter
cannot send the any CAN message to the CAN network.
In addition, the user can use the command "S[CHK]<CR>" to check the status of
the CAN converter to confirm what is wrong. Generally speaking, the common problems