GalileoSky GLONASS/GPS v5.1 (223) User’s Manual
GalileoSky Ltd
Page
92
Example1.
The Terminal should be configured so that the head pack (HeadPack) contains information about the
Terminal`s version (HardVersion), firmware version (SoftVersion), unique 15-digit GSM/3G-unit identifier
(IMEI), Terminal`s user ID (ID device).
Correspondent tag mask: 00000000000000000000000000000001111.
To apply the settings we should use the following command
HeadPack 00000000000000000000000000000001111, or omitting zeros, HeadPack 1111
Example2.
It is necessary to configure the main packet (sent in normal mode) so that the terminal`s user ID (ID device),
packet number (NumberOfPacket), date and time of packet record (TimeDate), coordinates are sent.
Correspondent tag mask: 00000000000000000000000000001111000
To apply the settings we should use the command: MainPack 1111000.
In this case, we have omitted zeros at once.
The server can send commands to the device. After command receiving and its successful execution, the
terminal sends a packet with text reply.
Structure of a packet with a command:
Field
Size
Header 0x01
1 byte
Packet length
2 bytes
Tag 0x03
1 byte
IMEI
15 bytes
Tag 0x04
1 byte
Device identifier
2 bytes
Tag 0xE0
1 byte
Command number, random number selected by the server
4 bytes
Tag 0xE1
1 byte
Command line length
1 byte
Command text in ASCII
Checksum. Calculated for the whole packet beginning with the header.
2 bytes
Respond’s structure is analogous to the command’s packet, but reply text is sent instead of command text.
Structure of packet with Garmin FMI protocol data:
Field
Size
Header 0x06
1 byte
Garmin FMI packet length in bytes
2 bytes
Garmin FMI packet
Checksum. Calculated for the whole packet beginning with the header.
2 bytes
Garmin FMI protocol data packet needs no confirmation from the server.
By data transmission from the server to the navigator the same packet structure is used.
The Terminal doesn’t send confirmations.
The server has to form ACK and NAK packets according to Garmin FMI protocol description, terminal doesn’t
form them.
