Kipp&Zonen COMBILOG Data Logger - Manual (Page 50)

5.2.3 Progressive Counter
When configuring a digital input as a progressive counter the
data logger COMBILOG 1022 constantly monitors the digital
input for a signal variation. If a negative signal edge (1
-
> 0) oc-
curs at the input, the current result is increased by 1.
The values may range from -2 31
to +(2
31 -1) (about -2.1 to +2.1
billion). Above +2 31 -1 the counting continues with -2 31 . The val-
ues can be reset to zero via the bus interface or internally after
the procedure of the averaging interval.
Note: The maximum counting rate is 2400 Hz.
Note: After a voltage cut-off the counter is reset to zero.
Figure 5.12 Progressive Counter
+1 +1 +1 +1 +1
n+1 n+2 n+3 n+4 n+5
signal diagram:
I/O 1
counting
counting
measurand
pulse
Hardware Manual COMBILOG 1022 50
Anschlussschema Schaltung
0V
I/O
+ 10V .. 30V
Connection scheme Circuit