Deluo TRISTAR25 - Manual (Page 30)

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4.3.1.2 LogData Dump
This command configures the receiver to output all the logged data in NMEA-0183 format or
binary format. Data logging is disabled upon reception of the command.
Byte # Contents Range Size Scale
1 Message ID = 0x81 Unsigned byte
2 Command LogDump = 0x12 Unsigned byte
3 Baud Rate
0 = 4800 bps
1 = 9600 bps
2 = 19200 bps
3 = 38400 bps
4 Message Type
bit0 = GGA message on/off (0:OFF, 1:ON)
bit1 = GLL message on/off
bit2 = RMC message on/off
bit3 = VTG message on/off
bit4~6 = reserved
bit7 = Log binary data on/off
When bit7 of byte 4 is set, logged data is sent in binary format; otherwise it is sent in NMEA
format. Bit0 ~ bit3 of byte 4 specifies which NMEA messages to be sent.
4.3.1.3 LogData Erase
This message commands the receiver to erase the logged data stored in the memory.
Byte # Contents Range Size Scale
1 Message ID = 0x81 Unsigned byte
2 Command LogEarse = 0x11 Unsigned byte
4.3.1.4 LogConfig Read
This command retrieves the data logging configuration, and the information on percentage of
the data buffer used.
The logging configuration information is returned using private
message 0x20, described in section 4.3.2.2.
Byte # Contents Range Size Scale
1 Message ID = 0x81 Unsigned byte
2 Command LogRead = 0x13 Unsigned byte