Unipower UP2210 - GPS Communication Configuration; Useful Information Regarding Gps

UNIPOWER
UP-2210 Hardware installation and configuration manual
63
Signal name
Direction
(from UP2210)
Signal level
Dsub-9
pin
RS-232
function
GPS function
RX
In
RS-232
2
RX
TX
PPS
In
RS-232
8
CTS
PPS
It is also necessary to configure the GPS to send the $GPRMC NMEA sentence periodically (every
1-15s is ok).
7.1.3 GPS communication configuration
Connect to the unit with PQ Online and go to the Tools-Status Tab. Select the appropriate connection
method for the GPS (RS-232 or Display port), and set the baud rate according to the baud rate
configured in the GPS (default values are normally 4800, 9600 or 19200). Then press Apply.
Figure 49 - GPS configuration
This is all that Is needed to configure the UP2210 to use GPS synchronization. If everything is
connected correctly and the GPS finds enough satellites, the “Sync” led on the UP2210 will start to
flash rapidly (0.05s On and 0.9s Off).
7.2 Useful information regarding GPS
When in GPS mode (i.e. the GPS sends valid information to the meter) the meter will not accept time
setting information from either manual operation by PQ Online or automatic setting by PQ Schedule.
If the GPS can’t send reliable time information to the meter (it loses contact with satellites, for
instance) the meter will wait for 1 hour before starting to accept time setting from other sources, like
PQ Schedule. You can study the RTC Sync event in the event list and see if the meter has been
synchronized by the GPS or by PQ Schedule.