USR-N540 User Manual www.usriot.com
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Notice: Check bit is sum check, starts from length byte (including length) to adding before checking (not
including checking), result is check value, only low byte is remained.
1. Command examples
① Search command example
Search command is set to:
FF 01 01 02
Sum check: 02 = 01 + 01
② Reset command example
FF 13 02 d8 b0 4c 00 04 c9 61 64 6d 69 6e 00 61 64 6d 69 6e 00 c8
Sum check:
C8 = 13 + 02 + ... + 6E + 00
User name and password both are 5 bytes+00 bits 0 for the lack.
③ Read settings command example
Send (16 bytes)：FF 13 03 AC CF 23 66 66 67 61 64 6D 69 6E 00 61 64 6D 69 6E 00 F9
④ Save reading settings command example
Send (16 bytes)：FF 13 04 AC CF 23 66 66 67 61 64 6D 69 6E 00 61 64 6D 69 6E 00 FA
2. Some commands detailed annotation
① Basic setting parameter command
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