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Chapter 8
Specific Features of the 1732E-IB8M8SOER Sequence of Events Input Module
Input turns OFF before 2 ms have elapsed.
Input turns ON;
timestamp #1 recorded
Type the filter times or use the
drop down menu to select the
Input Filter Time.
The Input Filter Time range is 0,
1, 2, 4, 8, or 16 ms.
Sync to Master
54
•
Scenario #3 – The input turns ON but turns OFF before 2 ms (length of
the input filter setting) elapses. In this case, the module continues to
scan the input every millisecond until the 1 ms counter decrements to
zero. The input never remains ON for at least 2 consecutive ms intervals,
the third ON sampled 1 ms interval. In this case, the module considers
the transition invalid and drops the data timestamped at the original
transition.
Figure 14 - Scenario #3
0
1
2
3
4
Time in milliseconds
Use the Configuration tab in Studio 5000 Logix Designer software to
configure Input Filters, as shown in
Figure 15 - Configure Input Filters
The Sync to Master feature in the 1732E-IB8M8SOER module indicates
whether the module should have synchronization with a master clock. When
enabled, the module remains in, or transitions to, the configuring state until
synchronized with a master clock. When disabled, the module operates
normally whether it is synchronized with a master clock or not.
The Sync to Master attribute is a read/writable Boolean with a default value
of 0 (master synchronization disabled).
Rockwell Automation Publication 1732E-UM003D-EN-E - November 2021
In none of these time periods is the input ON for at least 2 consecutive ms intervals.
5
6
7
8
Figure
15.
After 7 ms, the module drops the data
recorded at the original transition. If an RPI
occurs during this 7 ms, the module sends the
controller its current valid input data; the data
that is sent does not include data from the
transition describes in this graphic because
the timestamp has not been validated.
The next time the input turns ON, the module
records the transition as timestamp #1, with
the timestamp of the new input transition.
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