MEITRACK T622 GPRS Protocol
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GPRS Reply
$$s28,865328022075252,D72,OK*23\r\n
3.59
Allocating GPRS Cache and GPS LOG Storage Space – D73
GPRS Sending
D73,X,Y
GPRS Reply
D73,OK/<
Error code
>
Description
X
: Set the storage percentage of GPRS cache. Decimal in percentage.
Y
: Set the storage percentage of GPS logs. Decimal in percentage.
The sum of X and Y must be 100.
Applicable Model
T622
Example
GPRS Sending
@@Q32,865328022075252,0D73,50,50*C1\r\n
GPRS Reply
$$Q28,865328022075252,D73,OK*02\r\n
3.60
Sending the Destination to the Garmin Navigator – D74
GPRS Sending
D74,X1,X2,X3,X4,X5,X6
GPRS Reply
D74,OK/<
Error code
>
Description
X1: indicates the time when a message generates; 32-bit unsigned integer; hexadecimal
X2: indicates the message ID, which is unique; hexadecimal; contains up to 8 characters. If
the message ID already exists, the command fails to be sent.
X3: indicates the latitude; 32-bit signed; hexadecimal; accurate to 6 decimal places.
X4: indicates the longitude; 32-bit signed; hexadecimal; accurate to 6 decimal places.
X5: indicates the destination; Unicode hexadecimal character string; contains up to 398
characters (199 bytes).
X6: indicates the serial port number of the Garmin navigator. X6 = 1: serial port 1; X6 = 2:
serial port 2.
Applicable Model
T622
Example
GPRS Sending
@@O73,866699027509340,D74,302480F5,00000000,015787A6,06CC5FBB,F5456B00,02*
11\r\n
GPRS Reply
$$O28,866699027509340,D74,2*15\r\n
3.61
Sending Messages from the Garmin Navigator – D75
GPRS Sending
D75,X1,X2,X3,X4,X5,X6,X7,X8
GPRS Reply
D75,OK/<
Error code
>
Description
X1: indicates the time when a message generates; 32-bit unsigned integer;
X2: indicates the latitude; 32-bit signed; hexadecimal; accurate to 6 decimal places.
X3: indicates the longitude; 32-bit signed; hexadecimal; accurate to 6 decimal places.
X4: indicates the message ID sent from the platform to the Garmin navigator.
X5: indicates the message length; contains 1 byte; hexadecimal.