R.9.30
SEL-421 Relay Reference Manual Date Code 20111215
ASCII Command Reference
Description of Commands
If you have not enabled the Station DC Battery Monitor, the relay responds, DC
Monitor Is Not Enabled
. (Enable the dc monitor with the Global setting
EDCMON; see Section 10: Settings.)
The reset command, MET RBM, resets the dc monitor maximum/minimum
metering quantities. When you issue the MET RBM command, the relay
responds,
Reset Max/Min Battery Metering (Y/N)? If you answer
Y <Enter>, the relay responds,
Max/Min Battery Reset.
MET D
Use the MET D command to view the demand and peak demand quantities.
The reset command (MET RD) resets the Line demand metering quantities.
When you issue the MET RD command, the relay responds,
Reset Demands
(Y/N)?
If you answer Y <Enter>, the relay responds, Demands Reset.
The reset command, MET RP, resets the Line peak demand metering
quantities. When you issue the MET RP command, the relay responds,
Reset
Peak Demands (Y/N)?
If you answer Y <Enter>, the relay responds, Peak
Demands Reset
.
MET E
Use the MET E command to view the energy import and export quantities.
The reset command, MET RE, resets the Line, BK1, and BK2 energy
metering quantities. When you issue the MET RE command, the relay
responds,
Reset Energy Metering (Y/N)? If you answer Y <Enter>, the
relay responds,
Energy Metering Reset.
MET M
Use the MET M command to view power system maximum and minimum
quantities.
Table 9.77 MET D Command
Command Description Access Level
MET D Display Line demand metering data. 1, B, P, A, O, 2
MET D k Display Line demand metering data succes-
sively for k times
1, B, P, A, O, 2
MET RD Reset Line demand metering data. P, A, O, 2
MET RP Reset Line peak demand metering data. P, A, O, 2
Table 9.78 MET E Command
Command Description Access Level
MET E Display Line energy metering data. 1, B, P, A, O, 2
MET E k Display Line energy metering data succes-
sively for k times.
1, B, P, A, O, 2
MET RE Reset Line energy metering data. P, A, O, 2
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