R.9.56
SEL-421 Relay Reference Manual Date Code 20111215
ASCII Command Reference
Description of Commands
TEST FM PEAK
Use the TEST FM PEAK command to insert override values in Fast Meter
peak demand metering.
TIME
Use the TIME command to view and set the relay time clock. The ASCII
interface is just one source by which you can set the internal clock. Other
sources can override the ASCII TIME command; overriding occurs in HIRIG
time mode, IRIG time mode, and when using DNP. See Configuring High-
Accuracy Timekeeping on page U.4.71 for more information on configuring
SEL-421 time functions.
TIME
The TIME command returns information about the internal relay clock. You
can also set the clock if you specify hours and minutes (seconds data are
optional). Separate the hours, minutes, and seconds with colons, semicolons,
spaces, commas, or slashes.
Use the TIME hh:mm and TIME hh:mm:ss commands to set the relay
internal clock time. The value hh is for hours from 0–23; the value mm is for
minutes from 0–59; the value ss is for seconds from 0–59. If you enter a valid
time, the relay updates and saves the time in the nonvolatile clock, and
displays the time you just entered. If you enter an invalid time, the relay
responds,
Invalid Time.
TIME Q
The TIME Q command returns detailed information on the relay internal
clock. Use this command to query the status of high-accuracy time source
inputs and the present clock time mode.
When you issue the TIME Q command, the relay reports statistics on the
relay time sources. These statistics include the present time source and the last
time value update source (see Configuring High-Accuracy Timekeeping on
page U.4.71).
Table 9.145 TEST FM PEAK Command
Command Description Access Level
TEST FM PEAK
label value1
Write new data value1 to the Fast Meter
peak demand meter report at the item
label label.
B, P, A, O, 2
Table 9.146 TIME Command
Command Description Access Level
TIME Display the present relay internal clock
time.
1, B, P, A, O, 2
TIME hh:mm Set the relay internal clock to hh:mm. 1, B, P, A, O, 2
TIME hh:mm:ss Set the relay internal clock to hh:mm:ss. 1, B, P, A, O, 2
Tabl e 9. 14 7 TI M E Q Com m and
Command Description Access Level
TIME Q Display detailed information about the
internal relay clock; query relay time.
1, B, P, A, O, 2
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