Sel 411L - Table 8.3 EVE Command

P.8.15
Date Code 20151029 Protection Manual SEL-411L Relay
Oscillography, Events, and SER
Event Reports, Event Summaries, and Event Histories
Event Report
The relay generates event reports to display analog data, digital data (control
inputs, control outputs, and the state of Relay Word bits), and relay settings.
The event report is a complete description of the data that the relay recorded in
response to an event trigger. Each event report includes these components:
➤ Report header and analog section
➢ Currents and voltages
➤ Digital section
➢ Relay Word bit elements, control outputs, control inputs
➤ Event summary
➤ Settings
➢ Group settings
➢ Global settings
➢ Output settings
➢ SELOGIC control equations protection logic
Viewing the Event Report
Access event reports from the communications ports and communications
cards at Access Level 1 and higher. (You cannot view event reports at the front
panel, although you can view event summary information at the front-panel
display.) You can independently acknowledge the oldest event report at each
communications port (EVE ACK command) so that you and users at other
ports (SCADA, Engineering, etc.) can retrieve complete sets of event reports.
To acknowledge the oldest event report, you must first view that event report
at a particular port by using the EVE N(EXT) command.
You can use the EVE command and a terminal to retrieve event reports by
event order or by event serial number. (The relay labels each new event with a
unique serial number as reported in the HIS command history report (see
Event History.)
Event Numbering
Use the EVE n command to access particular event reports. When parameter
n is 1–9999, n indicates the order of the event report. The most recent event
report is 1, the next most recent report is 2, and so on. When parameter n is
10000–42767, n indicates the absolute serial number of the event report.
You can retrieve only analog or digital information, and you can exclude the
summary or settings portions of the report. The default EVE command event
report data resolution is 4 samples/cycle and the default report length is 0.5
seconds (30 cycles at 60 Hz or 25 cycles at 50 Hz) with the factory default
setting for LER.
Table 8.3 lists a summary of EVE commands. Table 8.4 shows a few
examples of command options that you can use with the EVE command. The
EVE L and EVE C commands provide compatibility with older command
sets.
Table 8.3 EVE Command (Sheet 1 of 2)
Command
a
,
b
,
c
Description
EVE Return the most recent event report (including settings and summary)
at full length with 4-samples/cycle data.
EVE n Return a particular n event report (including settings and summary) at
full length with 4-samples/cycle data.