Page 18 - Continuous Process Modeling Quick Start Guide
P. 18

Continuous Process Quick Start Guide
Most blocks have a dialog associated with them. Dialogs are used to enter val- ues and settings before running simula- tions and to see results during and after the run.
To access a block’s dialog, double-click the block’s icon or right-click the icon and select Open Dialog. For example, if you double-click the Holding Tank icon, the dialog at right opens.
At the top is the block’s global object ID, its name, the name of the library it resides in (inside the angle brackets), and its label (if present). Global object IDs are unique identifiers assigned sequentially to blocks and other objects as they are placed in a model.
☞ When there are multiple models and several open dialogs, it can be difficult to remember which block comes from which model. To see which model a block is in, hover over the block’s name in the dialog’s title bar.
Dialog tabs
Block dialogs may have tabs on top and/or on the left side.
• Most dialogs have tabs across the top for entering values and settings, getting results, con- trolling animation, and so forth. As shown above for the Holding Tank block, the tabs are Options, Animation, and Comments.
• If present, tabs on the left side are for switching between windows. For example, the Line Chart’s window has three tabs on the left (Dialog, Graph, and Data).
The tabs can be detached from the block to facilitate viewing the settings.
Interactive dialog items
Some dialogs calculate and display values that are generated as the model runs. If you leave a dialog open during the simulation, it will slow the run but you can watch the impact on differ- ent variables. This interactive simulation capability means you can even change some of the settings in a dialog during a simulation run, such as choosing different buttons or entering new values.
☞ When you click a button while the simulation is running, the block gets that changed value on the next step. However, if you type text or enter numbers into a parameter field or dialog table, the model pauses while you are typing in order to get your entire input.
Help, label, and icon view
As is true for most blocks, at the bot-
tom of the Holding Tank’s dialog is a
Help button. It provides information about the block, such as its purpose and use, connector usage, descriptions of each dialog item, and so on. To the right of the Help button is a text box for entering a label for that specific instance of the block in the model. The View popup is for

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