245
FINS Commands and Responses for DeviceNet Units Appendix C
Returns the error history for the number specified by Read Record No., in
order from the Read Start Record No. The total number of Error History Data
bytes is 10 × Read Record No.
One record of error history data is structured in 10 bytes as shown in the fol-
lowing diagram.
• Error Codes, Detailed Information
Shows the contents of the error stored in that record. Refer to 9-2 Error
Log Functions for details.
• Minutes, Seconds, Day, Time, Year, Month
Shows the date and time that the error stored in that record occurred.
Explanation
• Reads the error history data recorded in the DeviceNet Unit from the
specified point for the specified number of records.
• Up to 64 records are recorded in the DeviceNet Unit and the oldest data
will be the first to be replaced when the maximum is reached.
Important Points
• If there are fewer error history records than the Read Record No., the
records up to the last (latest) record stored at the point of command exe-
cution and then the processing/communications will end normally. The
actually number of records read will be returned as the Read Record No.
• If more than the current number of records is specified for Read Record
No., the end code 1103 hex will be returned.
• If the Read Record No. is 0000, the processing will end normally even if
there are no error records.
• If the Read Start Record No. is specified as 0000, the end code 110C hex
is returned.
ERROR HISTORY CLEAR (2103)
Command Block
Response Block
Error code Detailed
informa-
tion
Minute Second Time Year MonthDay
1st byte 10th byte
Command
code
Command
code
End code
