Schweitzer Engineering Laboratories SEL-421-4 - Page 1092

9.28
SEL-400 Series Relays Instruction Manual Date Code 20171006
Reporting
Sequential Events Recorder (SER)
Use the HIS command from a terminal to obtain the event history. You can view
event histories by date or by date range, or you can specify the number of the
most recent events that the relay returns. See HISTORY on page 14.32 for infor-
mation on the HIS command. Table 9 .3 lists the HIS commands.
You can use QuickSet to retrieve the relay event history. Use the Tools >
Events > Get Event Files menu to view the Event History dialog box. See Ana-
lyze Events on page 2.22 for information and examples.
CHISTORY
The relay outputs a Compressed ASCII history report for SCADA and other
automation applications. Issue the CHI command to view the Compressed ASCII
history report. This is a comma-delimited ASCII file. The relay appends a four-
digit hex checksum at the end of each history in the Compressed ASCII history
report.
Items included in the Compressed ASCII history report are similar to those
included in the history report, although the relay reports the items in a special
order. For the purpose of improving products and services, SEL sometimes
changes the items and item order.
History File Download
You can also download the history report file from the relay. Use a terminal emu-
lation program with file transfer capability. At an Access Level 1 prompt or
higher type FILE READ REPORTS HISTORY.TXT <Enter>. Start the termi-
nal download routine to store the file on your computer. If you want the Com-
pressed ASCII file, type FILE READ REPORTS CHISTORY.TXT <Enter>.
In addition, you can use QuickSet to download history files.
Sequential Events Recorder (SER)
The Sequential Events Recorder (SER) gives you detailed information on relay
states and relay element operation. The SER captures and time-tags state changes
of Relay Word bit elements and relay conditions. These conditions include
power-up, relay enable and disable, group changes, settings changes, memory
Ta b l e 9.3 HIS Co m m a n d
Command Description
HIS Return event histories with the oldest at the bottom of the list and the
most recent at the top of the list.
HIS k Return the k most recent event summaries with the oldest at the bottom
of the list and the most recent at the top of the list.
HIS date1 Return the event summaries on date date1
a
.
a
Use the same date format as Global setting DATE_F.
HIS date1 date2 Return the event summaries from date1 to date2, with date1 at the bot-
tom of the list and date2 at the top of the list.
HIS C Clear all event data on the present port.
HIS R Clear all event data on the present port.
HIS CA Clear event data for all ports.
HIS RA Clear event data for all ports.