Rockwell Automation Allen-Bradley ArmorBlock 1732E-IB8M8SOER User Manual page 71

1. Input 2 transitions
from OFF to ON.
Rockwell Automation Publication 1732E-UM003D-EN-E - November 2021
Chapter 10
simultaneously. Once the data is cleared, the module timestamps the
first transition in each direction for each input and sends the data to the
controller (assuming those inputs are configured with Timestamp
Capture enabled in each direction).
To clear all data for the module, transition the O.ResetEvents tag to 1.
- If the bit = 0, change the bit to 1.
- If the bit = 1, change the bit to 0, wait for at least one RPI, and change
the bit to 1.
The following figure shows when to clear data from the module. In this
example, the module sent input data to the controller, and the controller
copied the relevant input data to a separate structure. Now, the controller
must clear the data from the module.
In Figure 19, to clear data from the module, the controller writes the following
to the Sequence of Events output word:
• O.EventAck = 1
• O.NewDataAck.2 = 1
Figure 19 - Clear Data from the Module
1732E-IB8M8SOER
3. Module sends input data to the
controller.
2. Module timestamps the
transition.
I.Fault
I.Data
I.NewData
I.EventOverflow
I.LocalClockOffset
I.OffsetTimeStamp
I.GrandMasterClockID
I.TimeStampOffOn
I.TimeStampOnOff
I.EventNumber
I.SyncToMaster
5. Controller clears data from input 2 on the module.
O.EventAck = 1
O.NewDataAck.2 = 1
If Timestamp Latch is disabled, the module sends new data, from subsequent
transitions, to the controller as soon as they occur. The controller overwrites
timestamp data from the last transition, regardless of whether it saved the
data or not.
If the controller does not acknowledge the timestamp data then the NewData
bits in the input tags remains set and the EventOverflow bit is set as well.
Use the Sequence of Events Input and Scheduled Output Modules
ControlLogix controller
4. Controller copies
relevant data from
controller tags to a
separate array.
Controller tags
I.Fault
I.Data
I.OpenWire
I.ShortCircuit
I.NewData
I.EventOverlow
I.EventNumber
I.LocalClockOffset
I.OffsetTimeStamp
I.GrandMasterClockID
I.Timestamp[16].OffOn[2]
I.Timestamp[16].OnOff[2]
I.SyncedToMaster
Separate array
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