S&C 6800 Series User Manual

Switch Control Setup
When SCADA mode is selected, the real-time clock will be synchronized to the time
and date specified in the SCADA master’s time synchronization request. Configuration
of the Time Sync Request Interval setting is required.
When GPS and SCADA mode is selected, the GPS signal will be used when avail-
able. If the GPS signal is not available, the real-time clock will be synchronized to the
time and date specified in the SCADA master’s time synchronization request; otherwise,
the master’s time synchronization request is ignored. Configuration of the Time Sync
Request Interval setting is required.
When User Set mode is selected, the real-time clock will synchronize once to the
time indicated on a user-furnished computer or the time entered by the user. Go to the
Tools menu, select the Device Maintenance entry from the drop-down list, and click
on either the Set Control Time button to enter the user-set time or on the Synchronize
with PC button.
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
This is the date and 24-hour time display.
Active Time Source
This display indicates the time source as the processor clock, real-time clock, or GPS
source.
Control Time Zone
Select from the drop-down list. GMT (UTC = 0) is the default.
All time-stamped les 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 (2nd digit)
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)
S&C Instruction Sheet 1045-530 47

S&C 6800 Series Specifications

General

Brand	S&C
Model	6800 Series
Category	Controller
Language	English