Rockwell Automation 1732E-OB8M8SR EtherNet/IP Dual Port 8-Point SOE Input and Scheduled Output Modules UM User Manual
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Rockwell Automation Publication 1732E-UM003B-EN-E - March 2014
Chapter 8 Specific Features of the 1732E-IB8M8SOER Sequence of Events Input Module
• Scenario #1 (no bounce) – The input turns ON and remains for the full
2 ms. In this case, the module considers the transition valid and sends the
data recorded at the transition to the controller.
Note the input was sampled as being on three different times: 0 ms, 1 ms
and 2 ms.
• Scenario #2 – 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. At some point, less than 2 ms later, the input
turns ON again and remains for 1 to 2 ms, the third ON sampled 1 ms
interval (in this case at 6 ms). In this case, the module considers the
transition valid and sends the data timestamped at the original transition
to the controller.
0
1
2
3
4
5
6
7
8
Input turns ON;
timestamp recorded
Time in milliseconds
Input remains ON for at least 2 ms; transition is considered
valid and the timestamp is sent to the controller
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0
1
2
3
4
5
6
7
8
Time in milliseconds
Input turns ON and remains ON for
1…2 ms.
The module sends the timestamp recorded
at the original transition point to the
controller.
Input turns OFF before 2 ms have elapsed.
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Input turns ON;
timestamp recorded