Parameters

The Parameters table is used to retrieve stream or unit operations parameter values from the flowsheet. The data are retrieved through the Define system and assigned to the calculator parameter corresponding to the parameter number.

 

Usage

 

To display the parameter table, first push the Edit/View Declarations button if the View Area is not visible. Then push the Parameters... button in the View Area.

 

If you desire to retrieve the value of a stream or an unit operation parameter from the flowsheet, enter the Parameter number and click on the corresponding "Calculator Parameter" text. This displays the Parameter Selection Window from which you can select the desired stream or unit operation's parameter. See Define - Parameter for information on selecting the stream or unit operation parameter. After a parameter has been selected the "Calculator Parameter" text is replaced with the parameter you have selected.

 

The maximum number of parameters that can be retrieved is set by the size of the P( ) array as defined in the Arrays section. You can perform various operations on the parameter table like deleting, inserting rows and erasing the parameter selection made in a row. See Editing Tabular Data for more details.

 

To use this information in the calculator procedure, the syntax is:

 

P(parameter number).

 

This information can be used only on the right hand side of procedure assignment statements.

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Related Topics

Calculator - General Information

Calculator Main Window

Referencing Data Using the Define System

Calculator Procedure

Excel Procedure