To view a trend variable figure 913 olga link 9 31 9

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To view a trend variable:Figure 9.13
OLGA Link 9-319-311.Click the Addbutton. A default trend is setup. 2.Select a Position or Equipment label in the Position/Equipcolumn that appears.3.If specifying a POSITION, it either must be predefined in the OLGA input file or created at run time using the features in the Add New Position group.4.If an error occurs when setting up the trends make sure that the trend position label exists in the input file and the spelling is correct.5.If you want to view a history of the trend variable while you run in dynamics, create a strip chart in HYSYS and drag the desired trend value on to it. 6.If you want to remove a trend variable, select a cell associated to the trend variable and click the Removebutton.The Add New Position feature allows you to create a new Position label without having to shutdown the OLGA program and editing the *.inp file. This Position label is stored in the snapshot/restart file, so as long you load this when restarting HYSYS, any Trends you create using the Add New Position feature will be correct. If you plan to shutdown the OLGA Server and then restart without loading the snapshot file, then it is advised to enter the Position labels directly in the *.inp file. To use the Add New Position feature: 1.Type in a Label for the new Position in the Labelcell.2.Type the branch number in the Branchcell, pipe number in the Pipecell, and section number in the Sectioncell of the pipe at which you want to trend a variable.3.Click the Addbutton. OLGA will respond with an error if it cannot reconcile your request against the existing loaded OLGA model.For the GlobalVariable type, the Position/Equip entry is not required.Tip:The Trend Interval allows you to specify some lower frequency (other than every time step) to retrieve the trend data from OLGA.
9-32 OLGA Link Usage9-32Profiles PageA profile is a series of variable values from each computational volume or boundary in a BRANCH. Branches must be pre-defined in the OLGA input file.Profiles are added and removed the same way the trends are. To view the profile:1.Click the Addbutton. A default profile is setup. 2.Select a variable for trending from the drop-down list in the Variablecolumn. The value of the variable will be retrieved from OLGA in the units that OLGA responds in. 3.After you select a particular variable, you will see the Typecolumn change to tell you what type of OLGA variable you have selected.4.Select the appropriate checkbox in the Plotcolumn.Figure 9.14Only one profile can be selected and viewed at a time.
OLGA Link 9-339-335.After a profile has been selected, click the View…button. This will bring up a separate dialog box with a Plot.The profile variable will be plotted against the length of the Branch from its inlet. If you want to see the plotted data in a table, select the Tableradio button.

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