Hardware Manual COMBILOG 1020
56
Progressive Counter
When configuring a digital input as a progressive counter the
datalogger
COMBILOG 1020
constantly monitors the digital input
for a signal variation. If a negative signal edge (1
-
> 0) occurs 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 bil-
lion). Above +2
31
-1 the counting continues with -2
31
. The values
can be reset to zero via the bus interface or internally after the
procedure of the averaging interval.
Note:
The maximum counting rate depends on the internal clock
frequency of the processor. It is 1100 Hz for the 5 MHz version
(low power version) and 2000 Hz for the 20 MHz version (stan-
dard version).
Note:
After a voltage cut-off the counter is reset to zero.
Summary of Contents for COMBILOG 1020
Page 1: ...COMBILOG 1020 Datalogger Hardware Manual Version 3 09...
Page 2: ...Hardware Manual COMBILOG 1020 2 Issue 03 11 2005 Technical data are subject to change...
Page 4: ...Hardware Manual COMBILOG 1020 4...
Page 6: ...Hardware Manual COMBILOG 1020 6...
Page 12: ...Hardware Manual COMBILOG 1020 12...
Page 86: ...Hardware Manual COMBILOG 1020 86 Bild 8 1 Example Master Slave System...
Page 169: ...Hardware Manual COMBILOG 1020 169...
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