I-7530, I-7530-FT, I-7530A, I-7565
User’s Manual (Version 1.3, Apr/2015) -------- 50
5. Troubleshooting
If the Error response function on the CAN Converter module is set to
“Yes” (that means enable) via the CAN Converter Utility during the
configuration period, the CAN Converter will send the error code to the
RS-232/RS-485/RS-422/USB device of the host PC through the RS-
232/RS-485/RS-422/USB media when the CAN Converter produces an
error message automatically during the operation mode. The meanings of
these error codes are given below:
Table: Error code table
Error
code
Description
Possible causes & solutions
1
Invalid header
The RS-232/RS-485/RS-422/USB command string
header is not
“t”,”T”,”e”,”E”,”S”,”C”,”P0”, ”P1”, ”P2”, ”P3”
nor “RA”.
2
Invalid length
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>
3
Invalid
checksum
The checksum from the RS-232/RS-485/RS-422/USB
command string does not matched with the checksum
calculated by the CAN Converter module. For example:
Error: t0012112209<CR>
Right: t00121122FD<CR>
5
Timeout
The ASCII command strings are sent incomplete.
For example:
Error: T0018
Right: T0018<CR>
If the
CAN Converter module’s CAN baud rate is not the same as the
CAN baud rate on the CAN network, the ON LED on the CAN Converter
module will be flash with a constant frequency because the CAN
Converter module cannot send any CAN messages to the CAN network.
Therefore, users will need to read the CAN Converter module 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.
