ERL tesla lite, Руководство пользователя, Страница: 70 / 288

7 Recorder Setup Utilities
7-10 TESLA LITE User Manual D03283R01.10
Table 7.4: Time Settings
IED Time is displayed as
UTC Sets the time display and the Event Log timestamps to
Universal Coordinated Time (UTC). Note that UTC time
is not affected by the Recorder Time Zone setting or
Daylight Savings Time.
Local Time Sets the time display and the Event Log timestamps to
Local Time. Local time is converted to UTC using the
Recorder Time Zone setting.
Local Time with DST Same as Local Time, except Daylight Savings Time
(DST) is factored into the time conversion. Daylight Sav-
ings Time is assumed to be in effect from 2 AM on the
first Sunday in April until 2 AM on the last Sunday in
October.
Present Time
Display When connected to a recorder, the recorder’s present
time is shown and continually updated. The specified
time settings (e.g. Local Time) are applied to the dis-
played time.
Sync/No Sync
Display Indicates that the recorder is synchronized to an IRIG-B
time signal input.
Incoming IRIG Signal Properties These settings determine how the recorder responds to
IEEE 1344 information in the IRIG-B time signal and
manually define the format of the incoming time if IEEE
1344 data is not available.
Use IEEE 1344 If Present If Use IEEE 1344 if Present is checked and the source
clock generates IEEE 1344 data, the recorder:
• Uses the time zone offset from the IEEE 1344 data
embedded in the IRIG-B time signal.
• Reads the IEEE 1344 data to determine the mode of
the incoming IRIG signal (UTC, Local, Local with
DST).
Otherwise, the recorder uses the manually entered time
zone offset and clock source mode settings.
Do not use IEEE 1344 If Do Not Use IEEE 1344 is selected, the recorder will
ignore any IEEE 1344 data in the IRIG-B signal and use
the manually entered time zone offset and clock source
mode settings.
IRIG Source Specifies the mode of the incoming clock signal. Ignored
if IEEE 1344 data is present in the IRIG-B time signal
and the Use IEEE 1344 If Present setting is enabled.
Manually Set IED Time Allows the recorder’s clock to be manually set if an IRIG-
B signal is not present. If an IRIG-B signal is present, but
does not contain IEEE 1344 data, the year can be set
manually.
Recorder Time Zone Setting Provides the offset from local time to UTC in hours. For
example, Central Time has a +6 hour offset from UTC.
This setting is ignored if IEEE 1344 data is present in the
IRIG-B time signal and the Use IEEE 1344 If Present
setting is enabled.