10.31
Date Code 20060320 Instruction Manual SEL-311C Relay
Serial Port Communications and Commands
Command Explanations
If you select N or n the relay displays:
Canceled
and aborts the command.
If you select Y, the relay displays:
Rebooting the relay
The relay then restarts (just like powering down, then powering up the relay),
and all diagnostics are rerun before the relay is enabled.
Refer to Section 13: Testing and Troubleshooting for self-test thresholds (in
Table 13.10) and corrective actions.
SUM Command (Long Summary Event Report)
The SUM command displays a long summary event report (see TRI Command
(Trigger Event Report) on page 10.33). The long summary event report is
displayed on all ports with AUTO = Y whenever an event is generated.
To view a summary event report, enter the command
=>SUM |ACK| n | N(ext) | <Enter>
TAR Command (Display Relay Element Status)
The TAR command displays the status of front-panel target LEDs or relay
elements, whether they are asserted or deasserted. The elements are
represented as Relay Word bits and are listed in rows of eight, called Relay
Word rows. The first two rows correspond to Table 10.10. All rows of the
Relay Word are described in Section 9: Setting the Relay.
A Relay Word bit is either at a logical 1 (asserted) or a logical 0 (deasserted).
Relay Word bits are used in SEL
OGIC control equations. See Section 9: Setting
the Relay and Appendix H: Setting SEL
OGIC Control Equations.
where:
no parameters Display the newest chronological summary
event.
ACK Acknowledge the oldest unacknowledged
summary event report available on this port,
or if a number is supplied, acknowledge the
specified summary.
n Display (or acknowledge if ACK present) the
summary event with this corresponding
number in the HIS E command.
N(ext) View oldest unacknowledged summary event
report.
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