GE B90 UR Series Instruction Manual page 157

5 SETTINGS
To use SNTP,
SNTP SERVER IP ADDR
is "Enabled", the B90 attempts to obtain time values from the SNTP/NTP server. Since many time values are
FUNCTION
obtained and averaged, it generally takes three to four minutes until the B90 clock is closely synchronized with the SNTP/
NTP server. It may take up to two minutes for the B90 to signal an SNTP self-test error if the server is offline.
The UR-series relays do not support the broadcast, multicast or anycast SNTP functionality.
d) LOCAL TIME

PATH: SETTINGS PRODUCT SETUP
 LOCAL TIME

MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
The
LOCAL TIME OFFSET FROM UTC
(Greenwich Mean Time) in hours. Time zones in the eastern hemisphere have positive values; time zones in the western
hemisphere have negative values. A value of zero causes the relay to use UTC for local time. This setting has two uses.
When the system RTC is synchronized with IRIG-B or is free-running, the offset setting is used to calculate UTC time from
the local time these provide. When the RTC is synchronized with PTP or SNTP, the offset is used to determine local time
from the UTC time provided by PTP or SNTP. PTP ALTERNATE_TIME_OFFSET_INDICATOR TLVs are not used in calcu-
lating local time.
The
DAYLIGHT SAVINGS TIME (DST)
Note that when IRIG-B time synchronization is active, the local time in the IRIG-B signal contains any daylight savings time
offset and so the DST settings are ignored.
GE Multilin
must be set to the SNTP/NTP server IP address. Once this address is set and
 
REAL TIME CLOCK LOCAL TIME
LOCAL TIME OFFSET
FROM UTC: 0.0 hrs
DAYLIGHT SAVINGS
TIME: Disabled
DST START MONTH:
January
DST START DAY:
Sunday
DST START DAY
INSTANCE: First
DST START HOUR:
2:00
DST STOP MONTH:
January
DST STOP DAY:
Sunday
DST STOP DAY
INSTANCE: First
DST STOP HOUR:
2:00
setting is used to specify the local time zone offset from Universal Coordinated Time
settings can be used to allow the relay to follow the DST rules of the local time zone.
B90 Low Impedance Bus Differential System
5.2 PRODUCT SETUP
Range: –24.0 to 24.0 hrs in steps of 0.5
Range: Disabled, Enabled
Range: January to December (all months)
Range: Sunday to Saturday (all days of the week)
Range: First, Second, Third, Fourth, Last
Range: 0:00 to 23:00
Range: January to December (all months)
Range: Sunday to Saturday (all days of the week)
Range: First, Second, Third, Fourth, Last
Range: 0:00 to 23:00
SNTP
5
5-43