Kipp&Zonen COMBILOG Data Logger - Manual (Page 47)

5.2.1 Digital Status Recording
For the acquisition of digital status information (on/off,
closed/open, left/right, etc.) the signal fed to the digital input is
collected and is held ready for further processing in the data
logger COMBILOG 1022 or for transmission via bus.
The digital input is set (switch closed) as long as the signal
voltage remains under the threshold value of 1.0 V. The digital
information can be scanned as 1/0 information via bus.
Figure 5.10 Digital status recording
I/O 1
status
"0" "1" "0" "1"
signal diagram:
Hardware Manual COMBILOG 1022
Signal diagram:
47
Anschlussschema Schaltung
0V
I/O
+ 10V .. 30V
Connection scheme Circuit