Page 21 - Continuous Process Modeling Quick Start Guide
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Model Basics 17
Blocks for building continuous models
☞ Any data entered in the block’s dialog is stored within the model, not within the library.
Library windows
Each library has an associated library window, listing its blocks and their names. By default when you open ExtendSim, a library window for each open library opens and docks on the right side of the application window; to change that, see the Edit > Options > Libraries tab. The name of each library window is shown on the top of the docked window and in a tab along the right side.
Library windows behave like other docking windows. For exam- ple, to detach a library window from its docked position such that it becomes a floating window, either double-click its title bar or click on its title bar and drag to where you want it. To re-dock a library window, double-click its title bar or click on its title bar and drag it back to the docking area.
Use the close box to close a docked library window. To easily
close all the library windows, use the Library > Close All
Library Windows command or the corresponding button in the
toolbar at the top of the windows. The Open All Library Win-
dows command and button re-opens the library window for every open library.
☞ Closing a library window does not close the library; use the Library menu to close a library. Blocks for building continuous models
As discussed more below, to create continuous models you can: 1) UseblocksfromthelibrariesshippedwithExtendSim
2) Createcustomblocksandstoretheminlibrariesforreuse
3) Uselibrariesofcontinuousblocksdevelopedbythirdparties
In addition, you can encapsulate processes or portions of the model into hierarchical blocks.
Use blocks from ExtendSim libraries
ExtendSim CP includes several libraries of pre-built blocks
Value library
You can easily build continuous models in many fields using only the Value library that is included in every ExtendSim product. These blocks are pre-programmed for data management and model-specific tasks and allow you to perform complex modeling steps often with just the click of a button. For example, select a function in a Math block that automatically takes the inputs and calculates an output, or use the Random Number block’s popup menu to specify a distribution; both blocks are in the Value library.
For added power and flexibility, use the Equation block to create compiled equations, from a simple operation to a full programming segment. It uses formulas and/or ModL code entered in its dialog to calculate values for, and perform operations in, models. The User Reference has complete information about using equation-based blocks.
☞ See the Appendix in the ExtendSim User Reference for a listing and brief description of the blocks in the Value library.

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