SENA PS400 - Manual (Page 53)

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5.3.3 Locating server communication protocol
When the HelloDevice Pro Series sends its IP address information to the locating server, data format
will be as follows:
Description Magic Cookie Data(0) Data(1) … Data(n)
Bytes 4 Variable Variable Variable
Value F1-AA-AA-BC
Data(n) format
Description Data ID Length Data
Bytes 1 1 Variable
Value 1~6 Variable Variable
Data ID
ID Description Length
1 Device name var
2 Model name var
3 Serial number var
4 MAC address 6
5 IP address 4
6 Local ports* 2 or 4 or 8
Note:
Local ports: Each 2 byte data represent current local port setting of the corresponding serial port. Local ports data
length of PS100 should be 2 bytes, while 4 bytes and 8 bytes for PS200 and PS400 respectively. Configured
local TCP (or UDP) port numbers for each serial port are filled with network-order bytes, (i.e. higher bytes first). If
the host mode of a serial port is set to client mode, the local port number is regarded as 0.
Example of the PS100:
If port number = 6001 (1771h), Local ports data = 17h, 71h
If host mode is TCP client, Local port data = 0h, 0h
Example of the PS400:
Port1 = 6001 (1771h), Port2 = 6002 (1772h), Port3 = TCP client, Port4 = 6003(1773h)
Local ports data = 17h, 71h, 17h, 72h, 00h, 00h, 17h, 73h