nlscan.com
Page 14
General Programming
Command Programming
3
、
Flow Chart
Non-Con
fi
guration
State
Con
fi
guration
State
Host sends
“
$$$$
”
and receives
“
@@@@
”
5 seconds timeout
，
receives
“
^^^^
”
Host sends
“
%%%%
”
and receives
“
^^^^
”
Host sends commands
，
such as
“
#XXXX
;
”
Executing
Commands
Receives feedback which
begins with
“
?
”
and
ends with
“
;
”
Is it a query
command?
Successful
Unsuccessful
No
Yes
Receives feedback which
begins with
“
!
”
and
ends with
“
;
”
Receives feedback which begins
with
“
?
”
and ends with
“
;
”
Receives query information
which begins with
“
&{
”
and
ends with
“
}
”
