Instruction manual

Command Response Formats Page 93
Command
NMEA Data Message Commands
NMEA data message commands can be sent to the sensor through serial port A, B,
or C, and can also be directed so the message is output through port A, B, or C.
The general format for the NMEA message set commands is:
$PASHS,NME,str,x,y
The command enables or disables NMEA message type str on port x, where x is A, B,
or C, str is one of the following three-character strings
GLL GXP GGA VTG GSN MSG APA ALM MSG XTE
BWC DAL GSA GSV TTT RRE GRS UTM SAT
and y is ON or OFF.
To display the NMEA message, two commands are required: first, the NMEA
message type command, followed by the output enabling command
$PASHS,OUT,x,NMEA.
Example: Enable NMEA GLL (latitude/longitude) message on port A
$PASHS,NME,GLL,A,ON followed by
$PASHS,OUT,x,NMEA where x is the output port.
After one of the NMEA set commands enables the corresponding NMEA response
message, the sensor outputs the message at the frequency selected by the
$PASHS,NME,PER set command. Default is once every 20 seconds without the Q
option, or once every half-second if the Q option is installed. Refer to Table 4.38.
To turn off the NMEA message, issue the appropriate disabling command.
Example: Disable NMEA GLL message on port A
$PASHS,NME,GLL,A,OFF
The $PASHR,PAR command lets you see the status of all the NMEA messages.
Table 4.38: NMEA Periods
Setting NMEA Period
Without Q option (MSMOD=1) 1, 2, 3, 4....999 seconds
With Q option (MSMOD=1) 0.5, 1, 1.5, , 2, 2.5....999 seconds
Without Q option (MSMOD=0.5) 1, 2, 3, 4....999.5 seconds
With Q option (MSMOD=0.2) 0.2, 0.4, 0.6, 0.8, 1, 1.2, 1.4....999.8
seconds