Real Time Clock - GE D90 Plus Instruction Manual

REAL TIME CLOCK

Real time clock
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The following actual values are available for each FlexState parameter.
Name
Range: any FlexLogic™ operand
This actual value indicates the FlexLogic™ operand assigned to the FlexState parameter.
Value
Range: OFF, ON
This actual value indicates the logic state (ON, OFF) of the FlexState parameter.
The date and time can be synchronized a known time base and to other devices using an
IRIG-B signal. It has the same accuracy as an electronic watch, approximately ±1 minute
per month. If an IEEE 1344 compliant IRIG-B generator is connected to the D90
additional information is required. Otherwise, only the current year needs to be entered.
Use the Set Date and Time command to manually set the relay clock.
The daylight savings time (DST) settings can be used to allow the D90
the DST rules of the local time zone. Note that when IRIG-B time synchronization is active,
the DST settings are ignored. The DST settings are used when the D90
with SNTP, or when neither SNTP nor IRIG-B is used.
Select the Settings > Communications > Real Time Clock menu item to open the real time
clock configuration window.
Figure 116: FlexStates actual values
PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 6: COMMUNICATIONS
Plus
, then no
Plus
clock can follow
Plus
is synchronized