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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

to +(2

-1) (about -2.1 to +2.1

billion). Above +2

-1 the counting continues with -2

. 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

measurand

pulse

Hardware Manual COMBILOG 1022

Anschlussschema Schaltung

I/O

+ 10V .. 30V

Connection scheme Circuit

1 2 ... 45 46 47 48 49 50 51 52 53 54 55 ... 172 173

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Kippzonen COMBILOG Data Logger Manuale Utente Pagina 50