gPROMS ModelBuilder version 2.3.1

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Model Entities The icon sizes are defined as follows: “Default”: corresponds to the actual size of the icon in pixels as imported “Tiny” shows the icon extrapolated to a size of 16 x 16 pixels “Small” shows the icon extrapolated to a size of 32 x 32 pixels “Medium” shows the icon extrapolated to a size of 64 x 64 pixels “Large” shows the icon extrapolated to a size of 128 x 128 pixels, and “Huge” shows the icon extrapolated to a size of 256 x 256 pixels Note: To ensure that the Model appears on the Model palette the user should confirm that “Show in palette” option is checked on the Model Properties tab (see Section 2.5 for further details). 4.2.2 Port definition The table displayed underneath the icon shows the Ports defined for the Model. Ports are instances of Connection type entities (see Section 3.2 for further details) and can be used to define the connectivity of composite models (see Section 4.3). To define a new Port click on the “Add” button this will open a dialog box (Figure 4.2) where the user will be asked to enter the following information: Port name: a user defined name for the specific Port. Connection type: a drop-down list allows the user to select from the Connection types defined in the working project or in a cross-referenced project or library project. Port category: the drop-down list shows the Port categories defined for the selected Connection type. Direction: defines the directionality of the Port (inlet, outlet, bi-directional). Dimensionality: o Select scalar to define a simple Port. o To define a fixed array Port, select Fixed sizes(s). Both the size and number of dimensions are declared in the Size of dimension(s) field 13 : any size and number of dimensions are permitted. o To define a dynamic array Port, select Dynamic size. The size of the dynamic array is declared in the Bound size parameter field 14 and can be made equal to any integer parameter declared in the model (this field is automatically populated with the possible parameters). When the model is added to a topology this parameter is automatically set, based on the number of connections to the dynamic port. The Port position on the icon must also be specified. To do this 15 : place the pointer on the Port shown in the icon in the “Interface” tab, click on the Port and drag it to a suitable position, release the mouse button to finalise the Port position Note that a Port definition is also reflected on the gPROMS language tab (see Figure 4.3). 13 only highlighted if Fixed size(s) is selected in the dimensionality field. 14 only highlighted if Dynamic size is selected in the dimensionality field. 15 Alternatively, the Port position can be set by typing the rectangular coordinates in the appropriate fields (Figure 9). 28
Edited Port Figure 4.2 Defining a Port 4.2.2.1 Using Port Variables and Parameters in the gPROMS language 29 Interface tab By implication, defining a Port declares all the Variables and Parameters defined for that Port’s Connection type. These are referred to via the standard “pathname” construction used widely in gPROMS: PortName.VariableName or PortName.ParameterName A simple example from the gPROMS Process Model Library is shown in Figure 4.3. This illustrates the use of Port Parameters and Variables in the gPROMS language definition of a Model.
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Page 32 and 33: Model Entities 4.1 Introduction gPR
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8.5 “Create links to external fil
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8.6 “Export” 81 “Export” Mo
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Figure 8.9 Export to Simulink dialo
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Chapter 9 - Utilities
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9.2 ModelBuilder Preferences 89 Mod
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9.3 Text editor short-cut keys 91 T
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CTRL+w Remove the current word or t
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