janitza ProData 2, Operating Instructions And Technical Data

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33
ProData II
Events
Events are status changes of the relevant digital inputs
that are logged in a ring buffer.
Status changes (events):
The ring buffer saves
the last 16 events for each
digital input and specifies
the time stamp and
the current status. Within
the ring buffer, the event
field with the index 0 always
describes the current
status of the relevant digital
input.
Time
Event: 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Current value Oldest value
0
Fig.: Ring buffer for
16 field elements