Novatel OM-20000041 用户手册
3
Data Logs
MiLLennium GPSCard Software Version 4.50 Command Descriptions Manual Rev 1
43
Figure 3-1
Pass-Through Log Data
When pass-through logs are being used, the GPSCard’s command interpreter continues to monitor the port for valid
input commands and replies with error messages when the data is not recognized as such. If you do not want the
pass-through input port to respond with error messages during unrecognized data input, see the
input commands and replies with error messages when the data is not recognized as such. If you do not want the
pass-through input port to respond with error messages during unrecognized data input, see the
MESSAGES
command, Appendix C, Page 108 for details on how to inhibit the port’s error message responses. As well, if you
do not want the reference station to accept any input from the remote device, use the
do not want the reference station to accept any input from the remote device, use the
ACCEPT
NONE
command to
disable the port’s command interpreter.
3.8.1
Command Syntax
Syntax:
Example 1:
log com2 com1a onchanged
3.8.2 ASCII Log Structure
log
to-port
from-port-A/B
trigger
Syntax
Range Value
Description
Default
log
—
Log command
unlogall
to-port
COM1, COM2
Port that will output the pass-through log data
—
from-port-[A/B]
COM1A/B, COM2A/B
Port that will accept input data;
[A] option logs data as ASCII,
[B] option logs data with binary header
[B] option logs data with binary header
—
trigger
onchanged or onnew
log will output upon receipt of:
<CR>, <LF>, 80 characters, or 1/2 sec. timeout
<CR>, <LF>, 80 characters, or 1/2 sec. timeout
—
$port ID
week
seconds
pass-through data
*xx
[CR][LF]
Field #
Field type
Data Description
Example
1
$port ID
Log header:
Identifies port accepting input data
Identifies port accepting input data
$COM1
2
week
GPS week number
747
3
seconds
GPS seconds into the week at time of log
347131.23
4
pass-through data
Data accepted into COM1
(up to 80 characters)
(up to 80 characters)
$TM1A,747,347131.000000000,
0.000000058,0.000000024,
-9.000000009,0*78<CR>
0.000000058,0.000000024,
-9.000000009,0*78<CR>
5
*xx
Checksum
*2E
6
[CR][LF]
Sentence terminator
[CR][LF]
Serial Cable
Host PC
(Reference Station)
fix position (lat,lon,ht,id)
accept com1 none
log com1 pvaa ontime 5
messages com1 off
log console com1a onchanged
Host PC
(Rover Station)
To COM1
$PVAA data log
To COM1
Data Link
Serial Cable
To COM2
To COM2