XT55 AVL User’s Guide
Confidential/Released
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XT55_avl_ug_V03
Page 26 of 37
28.06.2004
$PSRF109,
rawData,
startdate,
startTime,
stopDate,
stopTime
*XX
Download history from XT55 AVL using specified parameters
Parameter description:
rawData:
// configure the data format
Defined value
0
// request history in the NMEA format
startdate
// start date in DDMMYY format
startTime
// the start time in HHMMSS format
stopDate
// the stop date in DDMMYY format
stopTime
// the stop time in HHMMSS format
*XX
// C
heckSum has to be calculated.
Example:
$PSRF109,0,280104,155811,300104,150000*37
This command enables you to retrieve stored GPS history data either from a
directly connected XT55 AVL or via remote connection.
In this example the GPS history is requested for the period starting on 28
th
January 2004 at 15:58:11 and ends on 30
th
January 2004 at 15:00:00.
Please note that all data in the on board memory are stored according to the UTC
time (Universal Time Coordinated). The parameters of this command are also
based on the UTC time.
Note: To download the GPS history data, please consider the UTC Time,
otherwise you will download the stored data in the incorrect time.
$PSRF109,
rawData,
startdate,
startTime,
stopDate,
stopTime
*XX
Download history from XT55 AVL using specified parameters
Parameter description:
rawData:
// configure the data format
Defined value
1
// request history in the SiRF binary format
$PSRF112,
4
*XX
Clear history data
Example:
$PSRF112,4*3D
This command deletes all previously stored history data
$PSRF112,
5
*XX
Display history settings.
Example:
$PSRF112,5*3D
This command reads the current history settings. (See also write command
$PSRF112,1,LOG=[parameters]).
The XT55 AVL returns the following string:
$current history settings: 3 sat, min 5 s, max 0 s, min 0 m, max 40 m, min 20
kmh, max 50 kmh
