Troubleshooting - ICP DAS USA I-7530 User Manual

5. Troubleshooting

If the Error response function on the I-7530 module is set to be
"Yes"(that means enable) via the I-7530 Utility during the configuration
period, the I-7530 will send the error code to the RS-232 device of the
host PC through the RS-232 media when the I-7530 produces an error
message automatically during the operation mode. The meanings of these
error codes are given below:
Error
Description
code
1 Invalid header
2 Invalid length
3 Invalid checksum
5 Timeout
If the I-7530 CAN baud rate is not the same as the CAN baud rate on
the CAN network, the data flow LED on the I-7530 will be flash with a
constant frequency because the I-7530 cannot send any CAN messages
to the CAN network. Therefore, users will need to read the I-7530 status
by using the command "S[CHK]<CR>"(in the section 4.5) to help users
understand what is going in the module. In general, the following errors
could occur: CAN media connection problem, terminal resistor problem,
different baud rate configuration with CAN network and the like.
I-7530 RS-232/CAN Converter User's Manual (Version 2.2, June/2008) ------------- 35
Table 12: Error code table
The RS-232 command string header is not
"t","T","e","E","S","C","P0", "P1" nor "RA".
The data byte of the CAN Message does not match
the data length of the CAN Message. For example:
Error: t001512345<CR>
Right: t00150102030405<CR>
The checksum from the RS-232 command string
does not matched with the checksum calculated by
the I-7530. For example:
Error: t0012112209<CR>
Right: t00121122FD<CR>
The ASCII command strings are sent incomplete.
For example:
Error: T0018
Right: T0018<CR>
Possible causes & solutions