USRIOT USR-N520, User Manual

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49 / 69
4.1.3. Commands’ Return Content
1. Return results of search command
Return command:
Bytes Name Example Explanation
0 TAG_STATUS FF
1 Packet_length 24
2
CMD_DISCOVER_TARG
ET
01
3 Board_type 00
4 Board_ID 00
5~8 Client_IP_address C0 A8 00 07 Device IP(High in front)
9~14 MAC_address
AC CF 23 20 FE
3D
Device MAC(High in front)
15~18 Firemware_version D0 07 12 34
D0 07: device version# (low in
front)
12 34: encrypted version
19~34 Application_title
55 53 52 2D 54 43
50 32 33 32 2D 35
30 30 00 00
Device name
35 checksum F0 checksum
Example:
Return results of search command(36 bytes)
FF 24 01 00 4B C0 A8 00 4D D8 B0 4C 00 04 C9 DD 07 01 00 55 53 52 2D 54 43 50 32 33 32 2D 34 30
31 00 00 EF
The method of the check is as follow:
0xEF = 00 - FF - 24 - 01 - 00 - 4B - ... - 31 - 00 - 00
2. Return results of reset command
Response(4 bytes): FF 01 02 4B, if user name and password are right, 4B = 'K'
FF 01 02 45, if user name and password are wrong, 45 = 'E'
3. Return results of read command
Description
：
Return all parameter of USR-N520 network. 193 bytes in total, no parity, no protocol, return parameter
directly.