Time Sync Request Interval (if Time Source=SCADA or Time Source=GPS and
SCADA)
When this interval (in minutes) expires the control will assert IIN1.4 (Need Time) on
every response until the master successfully writes absolute time and date using Object
50 variation 1. (Minimum: 1; Maximum: 10080; Step: 1; Default: Disabled)
Real-Time Clock Display
This is the date and 24-hour time display.
Active Time Source
This display indicates the time source as the Internal Clock (R3 control) or Real-Time
Clock (R2 control), or GPS Source.
Control Time Zone
Select from the drop-down list. GMT (UTC = 0) is the default.
All time-stamped files and the internal time are Universal Time, Coordinated (UTC),
also known as Greenwich Mean Time (GMT). Local time also can be displayed by using
the Control Time Zone and Daylight Savings Time settings.
Daylight Savings Time
Select from the drop-down list: No (default) or Yes mode.
Note: Select the Start Day, End Day, and Offset settings for the Daylight Savings
Time feature.
GPS Section
Number of Satellites Tracked by GPS
This is the number of satellites used in the calculation of the position and time displays.
Triangulation of three satellites at a minimum is required to determine position, but
three satellites in a straight line cannot determine position. Only one satellite is required
to determine time.
GPS Fix Quality
This statement indicates the GPS Fix Quality:
• Invalid
• GPS x (SPS)
• DGPS x
• PPS x
• Real Time Kinematic
• Float RTK
• Estimated (dead reckoning)
• Manual Input mode
• Simulation mode
S&C Instruction Sheet 766-530 31
General Setup
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