IMS Integrity Operating Window (IOW)

This online manual explains the Integrity Operating Window (IOW): The IOW Theory. How to use the IOW Main Screen. How to create and define new IOWs (and link them to a PEI Corrosion Loop (CL) or PLSS System. How to define a Virtual Tags for y...

The Integrity Operating Windows (IOWs) are defined as limits on process variables, beyond which the operating facility integrity deteriorates rapidly, leading to unsafe conditions. Impact can be a shortening of the remaining lifecycle of the asset a...

To see the list of registered IOWs (Integrity Operating Windows):  Go to the IMS Main Menu. Click IOW to go to the IOW Main Screen (Grid List). Click on the IOW Main menu, to list all IOWs.  Use the scoping bar, the filter,...

When IOWs are defined, variables with their limits and instruments are added to the Corrosion Loop (PEI Equipment) or System  (PLSS Equipment). Defining IOWs You can define a IOW (and link to its CL/System) either via the IOW Main Screen o...

A Virtual Tag is a way of defining IOW Tags using dynamic expressions. Expression can be composed using PI Tags and built-in functions like: +, -, *, / MIN, MAX, MEAN, SUM, ABS, SQRT, STD If then else ( )  Creating Virtual Tags To creat...

To open an IOW details page, click on the desired IOW ID hyperlink in the IOW Main Screen (or any other screen). See IMS Details Page . Note : All information shown on the IOW Details Page can also be found (and edited) on the  CL ...

The IOW Exceedances are calculated based on the limits and exceedance times that you have set for each IOW (see IOW Record ). In turn the IOW Exceedances then sets the Process Data Indicator status . IOW Data can be reviewed and analyzed from bot...

In the Analyze Tab of the IOW (Integrity Operating Window), more details of the Process Data can be visualized and basic stats can be calculated. The first step is to set the From and To  date: Set the From and To date in ...