Siemens 7SJ82, Manual

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Indication Description
Device:
Clock fail
This indication signals a high difference between the
internally managed time and the time of the clock
module that is not permissible. The pickup of the indi-
cation can point to a defect in the clock module or to
an unacceptable high drift of the system quartz
crystal. The time maintained internally is marked as
invalid.
Time management:
Daylight saving time
This indication signals whether daylight saving time
has been enabled.
Time management:
Clock set manually
This indication signals that the device time has been
set manually via the on-site operation panel or via
DIGSI 5.
Time synchronization:
Status time source 1
Status time source 2
These 2 indications signal whether the active time
sources are recognized as valid and active from the
device point of view. When the indications pick up, it
can also be an indication that an incorrect configura-
tion of the port or channel numbers was done at the
on-site operation panel.
Time synchronization:
Time sync. error
This indication signals after the parameterized time
Fault indication after
that synchronization
using an external time source has failed.
Time synchronization:
Leap second
This indication signals that a Leap second has
occurred during time synchronization using an
external GPS receiver (protocol variant IRIG-B
005(004) with extension according to IEEE
C37.118-2005).
Time synchronization:
High accuracy
This indication signals that the device is synchronized
with an accuracy better than 1 μs The indication is
only of significance when the PMU function is used.
i
i
NOTE
In case of a missing or discharged battery, the device starts without active external time synchronization
with the device time 2011-01-01 00:00:00 (UTC).
For the device, DIGSI 5 provides a compact overview of the status of the time synchronization of your
SIPROTEC 5 device in online mode. All displays are updated continuously. You can access the overview in the
project-tree window via Online access.
DIGSI: Online access -> Interface -> Device -> Device Information -> Time Information
System Functions
3.6 Date and Time Synchronization
148 SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017