Users manual
Appendix A
Revision #:
A
Date:
07-14-15
Page
41
of
58
9
CR
–
e
Ride
GNSS Core Library Interface
CRW(TPS1)
– Output Time Transfer Info per Second (Date and leap second)
△
4
△
5 Format:
1
2
3
4
5
future LS ,
pps status
*hh <CR
>
<LF>
6
7
Num
Contents
Range
Default
Remark
1
TPS1
-
-
Command Name
2
Date & Time
14-byte
fixed length
19990822000000
Present date and time
year, month, day, hour, minute, second
3
time status
0 to 2
(1byte)
0
Present time status of output sentence
0: RTC
1: GPS (GT-87 doesn’t apply leap second
or has only default leap second)
2: UTC (GT-87 has confirmed leap second
and applies it.)
4
update date
14-byte
fixed length
00000000000000
Leap second update schedule
year, month, day, hour, minute, second
This date indicates zero when no leap
second update schedule.
5
present LS
-31 to +32
(3byte)
+16
△
5
Present leap second received from
satellites
6
future LS
-31 to +32
(3byte)
+00
Future leap second received from
satellites
7
pps status
△
4
0 to 3
(1byte)
0
Present pps is synced with the follow.
0:RTC
1:GPS
2:UTC(USNO)
3:UTC(SU)
Example:
$PERDCRW,TPS1,20120303062722,2,2012070115,+16,2*09
Present date: 2012/03/03 06:27:22
Time status: present time of output sentence is sync with UTC.
Leap second update schedule: 2012/7/1 00:00:00
Current leap second: +15
Future leap second: +16
$PERDCRW , TPS1 , Date & Time , time status , update date , present LS ,
