Availability Schematic Document
(Menu) : Help » Popups » Options » Document Parameters...

Description This command is used to launch the Document Options dialog, with the Parameters tab active.

Use After launching the command, the Document Options dialog will appear, with the Parameters tab active. Use this tab to create and edit parameters for the current document. Properties for a parameter are defined in the Parameter Properties dialog (accessed when adding a new parameter or editing an existing one).

By default, parameters have been defined for Company and sheet-specific information (such as sheet number, document title and revision number), to be included in the title block of the sheet or elsewhere as text strings.

The parameters defined in this tab are treated as special strings. Special strings are text strings which are recognized and interpreted when the sheet is printed or plotted. Certain special strings provide current information, such as date and time, which are inserted at the time of printing.

You can also add design rule parameters to the document. This allows you to specify PCB layout design rules at the schematic stage of your design. Clicking the Add as Rule button will open the Parameter Properties dialog. When a parameter is added as a design rule, its name is fixed as 'Rule'. Its assigned value distinguishes it from another rule.

To assign the value for the parameter, click the Edit Rule Values button - the Choose Design Rule Type dialog will appear. This dialog provides a full list of all possible PCB design rules. Simply select the rule entry required and click OK (or double-click on the entry) to bring up the Edit PCB Rule dialog for that rule, from where you can edit the rule's attributes. After clicking OK, you will be returned to the Parameter Properties dialog. The entry for the parameter's value will show the rule type and defined attributes.

Notes Use the dialog What's This Help ? to gain information on each of the individual options available.

Some special stings can be displayed on the document prior to printing, by enabling the Convert Special Strings option in the Graphical Editing tab of the Preferences dialog.

A parameter added as a rule at the document level translates to a rule scope of All Objects when transferred to the PCB document. To achieve a more specific rule scope, a parameter (added as a rule) should be added to a specific object in the schematic.

Process Sch:DocumentPreferences

Parameters Tab = Parameters

Links Document Options
Document Sheet Options
Set Grid