Siemens AC75 User Manual
AC75 AT Command Set
20.9 AT^SSCNT
s
AC75_ATC_V01.002
Page 520 of 569
10/30/06
Confidential / Released
3
The effect of value 3 depends on the selected counter mode:
If
, parameter
= 0 (Start-Stop counter mode), then
" URC, the
number of pulses counted until this time.
If
type 3 immediately stops the pulse counter without indicating the "
URC. This action has the same effect as the command
=0,0.
Measurement result of the pulse counter in Start-Stop mode, indicated within the "
" URC, if
,
parameter
is 32 bits (2
32
-1).
0...4294967295
Number of pulses counted.
Note
• Measurement accuracy: In Start-Stop mode, you can achieve 100% accuracy if you take care that pulse trans-
mission begins after the start command (
=0 or 1) has returned OK and ends before the stop com-
mand (
=3) is issued.
20.9.1
Using the Pulse Counter in Start-Stop Counter Mode
<pulse>
(num)
at^sccnt=1,0
Open pulse counter and enable Start-Stop counter mode.
OK
at^sscnt=0
Reset and start pulse counter from 0.
OK
at^sscnt=2
Request value.
OK
^SSCNT: 0000003254
" URC indicates number of pulses counted.
at^sscnt=2
Request value.
OK
^SSCNT: 0000010024
" URC indicates number of pulses counted.
at^sscnt=2
Request value.
OK
^SSCNT: 0000015134
" URC indicates number of pulses counted.
at^sscnt=3
Request value and stop pulse counter.
OK
^SSCNT: 0000021020
" URC indicates number of pulses counted until this time.
at^sscnt=2
Request value.
OK
^SSCNT: 0000021020
" URC still indicates the count of the last run.
at^sscnt=1
Restart pulse counter at the value of the last run.
OK
at^sscnt=2
Request value.
^SSCNT: 0000022123
" URC indicates number of pulses incremented from the last
run.