Develop a time stamping application in PlantStruxure? - Schneider ...

1-Introduction
Table 1 Synchronization between the clock reference and time clock
Time stamps on the event data – performs the time stamping function.
The PAC system records the time data with the time clock when the event occurs and
associates the time information with the event signal data.
Monitoring & data inquiry – manages the time stamped data.
The time stamped data is displayed and recorded on the SCADA system. The time
stamped data can be used in different applications such as sequence of events (SOE)
and alarm signals. The data history helps the user to analyze the event sequence.
1.2.3 Benefits of a time stamping application
Time stamping in automation systems helps with process control and maintenance by
adding a timestamp to every event.
In a complex automation system, many events can cause the system to error and
stop the system. Because of the mass of information the system provides when
stopping, finding useful information can be tricky. Time stamping provides a way of
ordering the information with time stamps making it simpler to track errors..
For example, suppose four discrete events -A, B, C, and D as shown in Figure 2
impact on each other. A detected error in one of the events can trigger a chain
reaction preventing the other three from running successfully and resulting in an
emergency stop.
If there are no time stamps on the event records, it becomes very difficult to say
which of the events caused the stop.
With the time stamping function, the events are sequentially recorded with time
information, enabling quicker and easier maintenance as the user can see which of
the events started the chain reaction that caused the system to stop.
This is the benefit of the time stamping function in a complex system.
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