3.16.7
Time synchronization via IRIG-B
3.16.7.1
Settings
Table 70:
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
3.16.8
Operation principle
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.
SW-time
Protection
and control
functions
Time tagging and general synchronization
Commu
- nication
Events
IEC09000210-2-en.vsd
External
synchronization
sources
Off
SNTP
DNP
IRIG-B
Time-
regulator
IEC60870-5-103
IEC09000210 V2 EN
Figure 52:
Design of time system (clock synchronization)
From a general point of view synchronization can be seen as a hierarchical structure.
A function is synchronized from a higher level and provides synchronization to lower
levels.
Section 3
1MRS757256 F
Basic functions
102
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