Rnn - Routes - Leica MX420 Operator's Manual

Waypoint
Rnn -
Routes:
Operator's Manual
The CDU can download all of your stored waypoints and routes, and
your active route to other NMEA 0 I83 devices which accept the RTE,
Rnn, and WPL data sentences. These sentences are controlled in the
CFGl NMEA Out screens for the identifier given below. The CDU
outputs these sentences in the following format:
Waypoint identifiers, listed in order with starting waypoint first, for
route number
"nn",
The active route in the CDU is always route zero,
but in the Rnn sentence the route number can be transmitted as either
route 00 or 01.
Rnn is NMEA version 1.5. Use of GPRTEis recommended to comply
with NMEA version 2.1.
field#: 1 2
3 4 1
4
1
5
1
6
$GPRnn,cccc,cccc,CCCC, ..... ,cccc,cccc*hh<CR><LF>
explanation / actual use:
1: nn
=
active route number, 00 or 01
can be set to 00 orOl (default 00).
2 - 15: 14 field sequence of route waypoint IDs.
16: Checksum can be set on or off (default on).
RTf -
Active Route:
Waypoint identifiers, listed
in
order with starting waypoint first, for
the identified route. Two modes oftransmission'are provided: "c" indi-
cates that the complete list of waypoints in the route are being trans-
mitted;
"w"
indicates a working route (active) where the first listed
waypoint is always the last waypoint that has been reached (FROM),
while the second listed waypoint is always the waypoint that you are
currently heading toward (TO). The remaining list of waypoints repre-
sents the remainder of the route .
. RTE can be sent as version 2.1 and 2.0.
field#: 2 3 4
5
6 1
5
1
6
1
7
$GPRTE,x,x,a,cccc,cccc, ..... ,cccc,cccc*hh<CR><LF>
explanation / actual use:
Version 7.5
2:
Total number of messages being transmitted (a single route
59