User's Manual

Error Code: Only For i-7540D’s COM3 (CAN port)

If the Error response function on the i-7540D module is set to be “Yes”(that

mean enable) via the i-7540D Utility during the configuration period, the i-7540D

will send the error code to the device of the host PC through the Ethernet port

10003 when the i-7540D produces an error message automatically during the

operation mode. The meanings of these error codes are given below:

Table 7-1: Error code table

Error

code

Description Possible causes & solutions

1 Invalid header The RS-232 command string header is not “t”,”T”,”e”,”E”.

2 Invalid length

The length of command string is invalid. For example:

 Error: t0013112233

Right: t0013112233<CR>

Invalid CAN

identifier

The CAN identifier bits depend on CAN specification

CAN 2.0A: total 11 bits, 0x000 ~ 0x7FF

CAN 2.0B: total 29 bits, 0x00000000 ~ 0x1FFFFFFF

Invalid CAN

data 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>

If the i-7540D CAN baud rate is not the same as the CAN baud rate on the

CAN network, the ER LED on the i-7540D will be flash with a constant frequency

and the TX LED will solid green because the i-7540D cannot send any CAN

messages to the CAN network. Therefore, users will need to read the i-7540D

status by using the command “99S” (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 so on.

i-7540D CAN-Ethernet Gateway User’s Manual (Version 1.4, April/2008)

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