Model Setup / Parameter
Block Name: Parameter

Code File Location: VisualSim/data/expr/Parameter

Block Overview

• Is a named constant of any data type. The value of this variable cannot be modified during a simulation. The name can be called from any block field, another parameter or code lines. It can be modified, before the start of the simulation.  The parameter value can be modified in the Block Diagram, Simulation Cockpit Views or from the Batch-Mode script line. 

Description

Parameter is a variable containing a constant that can be any VisualSim data type, function and/or a RegEx expression. The parameter is defined by drag-n-drop action from the Model->Parameter Library folder into the Block Diagram.  The parameter value and name must be updated before it can be used.  The parameter can be modified, prior to the start of each simulation.  

This parameter name is available to the current window and all hierarchy blocks below this level.  The parameter name can be accessed directly from lower-level hierarchy blocks, provided there is no intermediate parameter with the same name.  

The parameter can be used in any Block fields, other parameters and in Virtual Machine code.   The Parameter name must be unique for each Block Diagram Window.

Parameters can be created for a Window, Hierarchical block and standard VisualSim library blocks.  The addition of parameters to the library blocks allows the user to reference the value in other parameters of the same block.

ÞNote: Illegal data values for the parameter will generate error messages.

Refer Parameter Demo Model.  The Instance Parameter demo shows how two instances of the same class in the same model can access different parameter values.  The Transaction_Source block of the first instance (top-right) accesses the parameter X1 inside the hierarchical block while the Transaction_Source block of the second instance (bottom-right) accesses the parameter X1 of the top-level model.

Parameter	Explanation	Type	Example
Customized Name > New name	Set the parameter name.	String	StopTime
Parameter (or Customized name)	Set the value to the define the parameter.	Any	10.0
Display Name	Define a unique name for the tooltip	String	MyParameter