Trip Analysis System

In order to determine the root cause of an emergency shutdown of a plant caused by failure or the like, a trip analysis system can support the analysis of the failure by collecting the events and sequence data around the time when a major piece of equipment of the plant trips.
This system is offered by using components of DIASYS Netmation.

• DIASYS Netmation

Functions

• Post trip log function
  When a major piece of equipment of the plant trips, this function collects the data of the pre-registered analog and digital signals around the timing of the trip and prints out the data. By collecting and printing out the process data around the timing of the trip, it supports the investigation and analysis of the root cause.
• SOE report function
  When a major piece of equipment of the plant trips, this function prints out the high-speed events and the data recorded in the event trace(Note) around the timing of the trip. By displaying the process data around the timing of the trip in chronological order in high precision, it supports the investigation and analysis of the root cause.
  (Note) Event trace
  The event trace is used to record alarm events, operations on operator stations, and logic monitoring adjustment operations. (The timestamp resolution is one second.)
• Flight recorder
  When a major piece of equipment of the plant trips, this function collects the data of the pre-registered process values around the timing of the trip and displays the data on a trend graph.
• Functional Specification
  

  Item	Specification
  	Post-trip log	SOE report	Flight recorder
  Collection period	Up to 20minutes before and after a trigger	Up to 30minutes before and after a trigger	Up to 1minute before and after a trigger
  Collection cycle	1second(Mximum resolution)	1millisecond	Minimum calculation interval of logic (100milliseconds is standard)
  Number of data points	Up to 64points per group. Up to 8triggers can be set per group.	Up to 128points per group	Up to 32points per group. Up to 8triggers can be set per group.
  Number of groups	Up to 160groups	Up to 10groups	Up to 4groups per MPS

 trip analysys.pdf