General Error Code For All Command - ICP DAS USA I-7530A-MR-FD User Manual

4.10 General Error code for all command

If the Error response function on the I-7530A-MR-FD module is set to be
"Yes"(that means enable) via the I-7530A-MR-FD Utility when configuration, the
I-7530A-MR-FD will automatically send the error code to the RS-232/485/422
device or the host PC through the RS-232/485/422 media when the I-7530A-
MR-FD produces an error message 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
4 Buffer overrun
5 Timeout
I-7530A-MR-FD Modbus RTU to CAN Converter User's Manual (Version 1.0, 08/2022) ------------- 62
Table 4-8: Error code table
Possible causes & solutions
The header of the RS-232/485/422
command string is not
"t","T","e","E","S","P0", "P1","P2" nor "RA".
The numbers of data of the CAN message
does not match the data length of the CAN
message. For example:
Error: t001512345<CR>
Right: t00150102030405<CR>
The checksum
command string does not match with the
checksum calculated by the I-7530A-MR-FD.
For example:
Error: t0012112209<CR>
Right: t00121122FD<CR>
The transmission
happened, users should retransmit the
message later when this module is normal.
The ASCII command strings are sent
incomplete.
For example:
Error: T0018
Right: T0018<CR>
of the RS-232/485/422
buffer overrun is