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DeltaV™ S-series Sequence of Events Card
PDP_DeltaV S-series Sequence of Events Card
When a process upset occurs, events can take place very rapidly throughout your process area.
In order to correctly determine the cause of the upset, accurate recording and sequencing of the events is essential. DeltaV™ Sequence of Events provides a means of recording the events associated with a process upset, and using highly accurate time stamps to determine the precise order in which they occurred.
DeltaV™ S-series Sequence of Events Card


Number of channels
16. Each channel can be configured for DI or SOE operation
Time Stamp Accuracy
0.25 msec on a card; 1 msec in a controller. Accuracy with reference to system clock time after a 4 msec debounce filter has been applied.
Scan rate
0.25 msec. for all 16 channels
Each channel is optically isolated from the system and factory tested to 1500 VDC.
Detection level for ON
> 2 mA
Detection level for OFF
< 0.25 mA
Input Impedance
5K ohm (approximate)
LocalBus current (12 VDC nominal) per card
50 mA typical, 75 mA maximum
Field circuit power, per card
75 mA at 24 VDC (+ 10%)
Field circuit voltage
24 VDC
Operating Temperature
-40 to 60° C (-40 to 140° F)
Storage Temperature
-40 to 85° C (-40 to 185° F)
Reltive Humidity
5 to 95% , non-condensing
10 g½-sine wave for 11 ms
1mm Peak-to-Peak from 2 to 13.2 Hz, 0.7g from 13.2 to 150 Hz


  • Captures process upset events close to the source for precise recording
  • Provides increased resolution of timestamps for more accurate event sequencing
  • Easily integrates data with desktop applications for detailed analysis and reporting