17.2.6.2 Settings
Table 496: TIMEZONE Non group settings (basic)
Name
Values (Range) Unit Step Default Description
NoHalfHourUTC -24 - 24 - 1 0 Number of half-hours from UTC
17.2.7 Time synchronization via IRIG-B
17.2.7.1 Identification
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Time synchronization via IRIG-B IRIG-B - -
17.2.7.2 Settings
Table 497: IRIG-B Non group settings (basic)
Name Values (Range) Unit Step Default Description
TimeDomain LocalTime
UTC
- - LocalTime Time domain
Encoding IRIG-B
1344
1344TZ
-
- IRIG-B Type of encoding
TimeZoneAs1344 MinusTZ
PlusTZ
- - PlusTZ Time zone as in 1344 standard
17.2.8 Operation principle
17.2.8.1 General concepts
Time definitions
The error of a clock is the difference between the actual time of the clock, and the time
the clock is intended to have. Clock accuracy indicates the increase in error, that is, the
time gained or lost by the clock. A disciplined clock knows its own faults and tries to
compensate for them.
1MRK 502 048-UEN A Section 17
Basic IED functions
625
Technical manual
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