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Premier 211 User Manual
BGX701-075-R03
Note:
Meter can be configured to operate either on ‘Crystal only’ or ‘Mains based sync’ for time synchronisation.
4.4.1
Setting time from the HES
The meter time can be set forward or backward to an absolute value via an authenticated command from HES.
Forward time set
In the case of forward time setting, the missing SIP values for standard and diagnostic profiles will be logged as
“-------“ which is considered as invalid SIP. The missing SIP values for a power OFF condition are also logged in
a similar manner.
The time set flag is shown:
01. In the SIP from which time is changed and
02. In the SIP to which time is forwarded. No data change flag is set in this case.
Backward time set
The following are applicable for a backwards time set:
01.
Backward time set within a SIP:
In this case the meter treats it as an extended SIP. Time set and data
change flags will be shown in this SIP.
02.
Backward time set within 5 SIP (including the current SIP):
In this case cumulative value of 4 SIP
(excluding current SIP) energy will be preserved and will be adjusted in upcoming SIPs. In the 1st SIP
(to which backward time is set) time set flag will be shown and data change flag will be shown in 1st
and upcoming SIP in which energy value is adjusted. Data change flag will be always set in first SIP of
backward time set irrespective of energy adjustment.
03.
Backward time set more than 5 SIP (including the current SIP):
In this case the meter invalidates all
the upcoming SIP data and logs new values as normal processing. Here, time set flag will be shown in
the 1st SIP to which time is backward set but no data change flag will be set.
Note:
All previous Load profile data is lost when this type of adjustment is performed in the meter. So be sure to read
the data before commencing this operation.
4.4.2
Synchronising time from the communication module
The meter time synchronisation sent from the communication module via time synchronisation command will
take place only when the time drift, i.e. the default time difference between the meter time and the
communication module time is between 3 seconds and 50 seconds. The time synchronisation is always
implemented within a demand or survey integration period boundary (whichever is less) and therefore
sometimes the adjustment may be delayed until the next DIP or SIP.
When the time drift is less than the minimum time synchronisation thresholds the meter will accept the time
synchronisation request but will not implement the change.
When the time drift is greater than the maximum time synchronisation thresholds the meter will reject the time
synchronisation request and will allow time adjustment using the time setting to an absolute value from the HES.
4.5
UTRN transactions
A Unique Transaction Reference Number (UTRN) is a code is required to modify existing configurations in the
meter. A maximum of 100 UTRN events can be recorded by the meter (either accepted or rejected). There are
three types of UTRNs:
