R.9.47
Date Code 20111215 Reference Manual SEL-421 Relay
ASCII Command Reference
Description of Commands
SHO P
Use the SHO P command to configure the relay communications ports; each
port is a settings instance. The SEL-421 communications ports include serial
ports at PORT F, PORT 1, PORT 2, and PORT 3. PORT 5 is the communications card
port into which the optional Ethernet card or other communications cards can
be installed.
The SHO P command with no options and parameters shows the settings for
the active port.
SHO R
Use the SHO R command to show Report settings and to program SER Points
and Aliases. You can also show event report parameters and program Event
Report Digital Elements. There is only one instance for the Report settings.
SHO T
Use the SHO T command to show aliases for Relay Word bits or analog
quantities. There is only one instance for the alias settings.
SNS
In response to the SNS command, the relay sends the names of the Sequential
Events Recorder elements. This is a comma-delimited string used to support
the SEL Fast SER report. See Section 5: SEL Communications Protocols for
more information.
Table 9.121 SHO P Command
Command Description Access Level
SHO P Show the relay settings for the port presently in
use, beginning at the first setting.
1, B, P, A, O, 2
SHO P label Show the relay settings for the port presently in
use, beginning at the settings label label.
1, B, P, A, O, 2
SHO P p
a
a
Parameter p = 1–3, F, and 5 which corresponds to PORT 1–PORT 3, PORT F, and PORT 5.
Show the communications Port relay settings
for Port p, beginning at the first setting for this
port.
1, B, P, A, O, 2
SHO P
p label Show the communications Port relay settings
for Port p, beginning at the settings label label.
1, B, P, A, O, 2
Table 9.122 SHO R Command
Command Description Access Level
SHO R Show the Report relay settings, beginning at
the first setting for this class.
1, B, P, A, O, 2
SHO R label Show the Report relay settings, beginning at
the settings label label.
1, B, P, A, O, 2
Table 9.123 SHO T Command
Command Description Access Level
SHO T Show the alias settings. 1, B, P, A, O, 2
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