Rockwell Automation Allen-Bradley ArmorBlock 1732E-IB8M8SOER User Manual page 61

Figure 16 - Timestamp Storage
The module is installed, wired to input devices and
ready to begin operation. All inputs are configured to
timestamp any transition that occurs.
At this point, timestamp data for each input is 0
because no input transitions have occurred.
Note that only 8 bits of the 64-bit timestamp are shown.
Input 1 transitions from OFF to ON.
The module timestamps the transition; the module
sends the data to the owner-controller (not shown)
and also stores it locally.
Input 2 transitions from ON to OFF.
The module timestamps the transition; the module
sends the data to the owner-controller (not shown)
and also stores it locally.
Note that the module continues to store the
timestamp for the OFF to ON transition on input 1.
Generally the following occurs:
1. The module timestamps each transition for inputs that are Timestamp
Capture-enabled. The module can timestamp each transition with a
unique system time.
2. The module sends all of its input data, including the new data from the
most recent transition, to the controller immediately after timestamping
the transition and passing the input filter to make sure the transition
was valid.
3. You copy new data from the controller tags to a separate data structure
for later sorting.
4. Acknowledge the timestamp, using output tags, so that the module can
capture another timestamp on that input without losing any data.
5. Once the data is copied to a separate data structure, you may sort the
data in the controller to determine the order of events.
Some of these typical events are described in greater detail in the rest of this
chapter. For typical applications for Sequence of Events modules, see
Performance Sequence of Events Applications in the Logix Architecture on
page 15.
Rockwell Automation Publication 1732E-UM003D-EN-E - November 2021
Chapter 10 Use the Sequence of Events Input and Scheduled Output Modules
Input 0
Input 1
Input 2
Input 7
Input 0
Input 1
Input 2
Input 7
Input 0
Input 1
Input 2
Input 7
OFF/ON timestamp data
0 0 0 0 0
ON/OFF timestamp data
0 0 0 0 0
OFF/ON timestamp data
0 0 0 0 0
ON/OFF timestamp data
0 0 0 0 0
OFF/ON timestamp data
0 0 0 0 0
ON/OFF timestamp data
0 0 0 0 0
OFF/ON timestamp data
0 0 0 0 0
ON/OFF timestamp data
0 0 0 0 0
OFF/ON timestamp data
0 0 0 0 0
ON/OFF timestamp data
0 0 0 0 0
OFF/ON timestamp data
0 1 0 1 1
ON/OFF timestamp data
0 0 0 0 0
OFF/ON timestamp data
0 0 0 0 0
ON/OFF timestamp data
0 0 0 0 0
OFF/ON timestamp data
0 0 0 0 0
ON/OFF timestamp data
0 0 0 0 0
OFF/ON timestamp data
0 0 0 0 0
ON/OFF timestamp data
0 0 0 0 0
OFF/ON timestamp data
0 1 0 1 1
ON/OFF timestamp data
0 0 0 0 0
OFF/ON timestamp data
0 0 0 0 0
ON/OFF timestamp data
1 1 0 0 1
OFF/ON timestamp data
0 0 0 0 0
ON/OFF timestamp data
0 0 0 0 0
High
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