Sel 751A, Instruction Manual

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7.42
SEL-751A Relay Instruction Manual Date Code 20100129
Communications
SEL ASCII Protocol and Commands
TIME Command (View/Change Time)
The TIME command (see Table 7.52 ) returns information about the
SEL-751A internal 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 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 SEL-751A responds with
Invalid Time
.
TRIGGER Command (Trigger Event Report)
Use the TRI command (see Table 7.53 ) to trigger the SEL-751A to record
data for high-resolution oscillography and event reports.
When you issue the TRI command, the SEL-751A responds with
Triggered
.
If the event did not trigger within one second, the relay responds with
Did not
trigger
.
See Section 9: Analyzing Events for further details on event reports.
Table 7.52 TIME Command (View/Change Time)
Command Description Access Level
TIME Display the present internal clock time. 1
TIME hh:mm Set the internal clock to hh:mm . 1
TIME hh:mm:ss Set the internal clock to hh:mm:ss . 1
Table 7.53 TRIGGER Command (Trigger Event Report)
Command Description Access Level
TRI Trigger event report data capture. 1