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17 Ethernet Option Board
17-5 Trouble Shooting
17-5-1 Error Log
The Ethernet Option Board provides an error log that records errors occurred during Ethernet Option
Board operation. The contents of the error log can be read or cleared from the Web Brower.
Logged Errors
The following errors are recorded in the error log.
• Errors in network operation
• Errors in data transfers
• Error in the CPU unit
Error Log Table
Each error is recorded as one record in an error log table. Up to 20 records can be saved. If more than
20 errors occur, the oldest errors will be deleted from the error log and the most recent error will be
recorded.
The following information is recorded in the error log table.
• Main error code (see table later in this section)
• Detailed error code (see table later in this section)
• Time stamp (from the clock in the CPU unit)
Note During the initialization of the Ethernet Option Board, if an error occurs, the error log time stamp will record
as 2000-00-00 00:00:00.
Error Log Location
When an error is detected, the error codes and time stamp are recorded in the error log in RAM inside
the Ethernet Option Board. Serious errors are also recorded in EEPROM. The maximum number of
errors that can be saved to EEPROM is 20 for the CP1L and CP1H. The errors recorded in EEPROM
will be saved even if the unit is restarted or power is turned OFF.
17-32
CP1E CPU Unit Software User's Manual(W480)
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