Hitachi S10mini Hardware Manual page 88

6 MAINTENANCE
6.3.4 Communication errors
(1) Return code errors
When it detects an error on a communication line, the J.NET module stores the error
information in the ALM field of the S-register, sets the NET status error flag, and writes the
error code to the S-table.
The module also displays the error on the CPU LED.
Error code
7110 An undefined service was instructed.
7120 The data length is incorrect.
7130 The packet configuration is incorrect.
7061 The fetching of input data was not
completed at the station.
2010 An error was detected during CRC check.
2020 The station number is from 128 to 254 or
the received station number is incorrect.
2030 An undefined service was specified.
2040 The I-frame length is greater than or equal
to 137 bytes or the UI-frame length is
greater than or equal to 134 bytes.
2041 No I-frame exists in the I-response.
2042 An I-frame exists in the monitoring frame.
2050 Data link procedure error
2060 A timeout was detected (no response was
made from the slave station within the
specified time).
2061 The error could not be recovered by retry.
2070 No frame could be transmitted to the line
or an error was detected during frame
reception.
2080 Other errors
Explanation
• If this error recurs even after the CPU key switch has
been reset once and then set to the original position
again, restart the J.NET module.
• If this error still recurs, replace the J.NET module.
• This condition is not an error condition.
• Normal processing resumes upon completion of the input
data fetch.
• Check whether the network line is normal.
• Check whether SVPT setting matches station setting.
• If this error still recurs, replace the J.NET module.
• Power on the station again.
• If this error still recurs, check whether the switches of the
J.NET module and station are set correctly.
• If this error still recurs even after the switches have been
set correctly, replace the station.
• Check the network line connection and terminating
resistor connection.
• Check whether SVPT setting matches station setting.
• If this error recurs even after the CPU key switch has
been reset once and then set to the original position
again, restart the J.NET module.
• If this error still persists, replace the J.NET module.
• If this error recurs even after the CPU key switch has
been reset once and then set to the original position
again, restart the J.NET module.
• If this error still recurs, replace the J.NET module.
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