9.19
Date Code 20020903 SEL-587Z Instruction Manual
Event Reports and SER
Sequential Events Recorder (SER) Report
The date entries in the above example SER commands are dependent on the
Date Format setting DATE_F. If setting DATE_F = MDY, then the dates are
entered as in the above examples (Month/Day/Year). If setting DATE_F =
YMD, then the dates are entered Year/Month/Day.
For any SER report request, no more than 256 rows can be displayed at a time.
To view SER rows between Row 257 and Row 512, you must specify the
range after the SER command (see Table 9.5 on page 9.18).
If the requested SER report rows do not exist, the relay responds “Invalid
Record.”
If there are no rows in the SER report buffer, the relay responds “No SER
data.”
Clearing
SER Buffer
If the SER C command is entered, the relay prompts the operator for
confirmation:
Clear SER Buffer
Are you sure (Y/N)?
If “Y” is entered, the relay clears the SER reports from nonvolatile memory. If
“N” is entered, no reports are cleared, and the relay responds “Canceled.”
SER Column
Definitions
Refer to the example SER report in Figure 9.3 on page 9.20 to view SER
report columns. Note in Figure 9.3 on page 9.20 that a row in the SER report
is actually two lines long; the first line contains row, date, time, and any
written message, and the second line contains the current and the other relay
information.
The column definitions in Table 9.3 on page 9.6 and Table 9.4 on page 9.7
also apply to the columns of the SER Report. The SER Report has a few
additional columns:
The SER report analog columns (87A, 87B, 87C, IA, IB, IC) display
magnitude values (currents in primary), rather than sampled current values, as
the event report current columns do.
NOTE: Clear the SER Buffer with
care. Automated clearing of the SER
buffer should be limited to reduce
the possibility of wearing out the
nonvolatile memory. Limit
automated SER C commands to once
per week or less.
Table 9.6 SER Report Additional Columns
Column Heading Definition
Row SER report row number (1 through 512)
Date Date that the SER report row was triggered
Time Time (24-hour time) that the SER report row was triggered
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