VAMP 259 - Page 170

3.10 System clock and
synchronization
3 Supporting functions
Technical description
170
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VM259.EN007
System clock parameters
Parameter
Value
Unit
Description
Note
Date
Current date
Set
Time
Current time
Set
Style
ydm
d.m.y
m/d/y
Date format
Year-Month-Day
Day.Month.Year
Month/Day/Year
Set
SyncDI



DI1 ... DI6
The digital input used for clock
synchronisation.
DI not used for synchronizing
Minute pulse input
***)
TZone
12.00 ...
+14.00
*)
UTC time zone for SNTP
synchronization.
Note: This is a decimal number.
For example for state of Nepal
the time zone 5:45 is given as
5.75
Set
DST
No
Yes
Daylight saving time for SNTP
Set
SySrc
Internal
DI
SNTP
SpaBus
ModBus
ProfibusDP
IEC-103
IEC-101
DNP3
Clock synchronisation source
No sync recognized since 200 s
Digital input
Protocol sync
Protocol sync
Protocol sync
Protocol sync
Protocol sync
Protocol sync
MsgCnt
0 ... 65535,
0 ... etc.
The number of received
synchronisation messages or
pulses
Dev
32767
ms
Latest time deviation between
the system clock and the
received synchronization
SyOS
10000.000
s
Synchronisation correction for
any constant error in the
synchronizing source.
Set
AAIntv
10000
s
Adapted auto adjust interval
for 1 ms correction
Set
**
)
AvDrft
Lead
Lag
Adapted average clock drift
sign
Set
**)
FilDev
125
ms
Filtered synchronisation
deviation
Set = An editable parameter (password needed).
*) Astronomically a range –11 ... +12 h would be enough, but for political
and geographical reasons a larger range is needed.
**) If external synchoronization is used this parameter will be set
automatically.