Altium Designer Documentation

Sheet Symbol Properties

Modified by Susan Riege on Mar 16, 2018
All Contents

Parent page: Sheet Symbol

Schematic Editor object properties are definable options that specify the visual style, content and behavior of the placed object. The property settings for each type of object are defined in two different ways:

  • Pre-placement settings – most Sheet Symbol object properties, or those that can logically be pre-defined, are available as editable default settings on the Schematic - Defaults page of the Preferences dialog (access from the  button at the top-right of the workspace). Select the object in the Primitive List to reveal its options on the right.
  • Post-placement settings – all Sheet Symbol object properties are available for editing in the Properties panel when a placed Sheet Symbol is selected in the workspace.

               The Sheet Symbol default settings in the Preferences dialog and the Sheet Symbol mode of the Properties panel

In the below properties listing, options that are not available as default settings in the Preferences dialog are noted as "Properties panel only".

General Tab

Location (Properties panel only)

  • (X/Y)  
    • X (first field) - the current X (horizontal) coordinate of the reference point of the object, relative to the current workspace origin. Edit to change the X position of the object. The value can be entered in either metric or imperial; include the units when entering a value whose units are not the current default. 
    • Y (second field) - The current Y (vertical) coordinate of the reference point of the object, relative to the current origin. Edit to change the Y position of the object. The value can be entered in either metric or imperial; include the units when entering a value whose units are not the current default. 

Properties

  • Designator - the current name for the sheet symbol. This field is used to provide the sheet symbol with a meaningful name that will distinguish it from other sheet symbols placed on the same schematic sheet. Typically the name will reflect the overall function of the schematic sub-sheet that the symbol represents. Toggle  or  to show/hide the designator. 
  • File Name -  the current schematic document referenced by the sheet symbol. Toggle  or  to show/hide the file name. 
  • Bus Text Style - use the drop-down to select the style of the bus text. Choices are Full or Prefix.
  • Width - enter the width.
  • Height - enter the height.
  • Line Style - use the drop-down to select the default from the available choices: SmallestSmallMedium, and Large. Click on the color box to access a drop-down from which you can select the default line color.
  • Fill Color - check to enable fills. Click on the color box to access a drop-down from which you can select the default fill color.

Source (Properties panel only) 

  • Local / Device / Managed - the source of the file. 
    • File Name -displays the current schematic document referenced by the sheet symbol. It is this field that provides the link between the sheet symbol and the schematic sub-sheet that the symbol represents. Click  to open the Choose Document to Reference dialog to choose the required target sub-sheet. The dialog presents a listing of all source schematic sheets in the project (with the exception of the sheet upon which the symbol is currently placed).
Multiple sub-sheets may be referenced by a single sheet symbol. Separate each file name by a semi-colon in the File Name field. With the effective use of off-sheet connectors placed on the sub-sheets, you can effectively spread a section of your design over multiple sheets, treated as though they were one giant (flat) sheet. Note, however, that use of off-sheet connectors is only possible for sheets referenced by the same sheet symbol.

Sheet Entries (Properties panel only)

  • Grid - lists the Name and I/O Type of all of the sheet entries currently defined for the sheet symbol. ​When there are sheet entries in the grid, the following additional options are available when an entry is selected:
    • Font - click to confgure the font style of the sheet entry.
    • Other - click to open a drop-down to change additional options:
      • Kind - use the drop-down to select the kind of sheet entry. Choices are: Block & Triangle, Triangle, Arrow, and Arrow Tail.
      • Border Color - click to access controls to choose the border color.
      • Fill Color - click to access controls to choose the fill color.
  • Add - click the Add button to add a sheet entry. Use the  button to delete a selected entry from the table.

Parameters Tab 

Parameters

  • Grid - lists the Name and Value of all of the parameters currently defined for the sheet symbol. ​When there are parameters in the grid, the following additional options are available when a parameter is selected:
    • Font - click to confgure the font style of the parameter.
    • Other - click to open a drop-down to change additional options:
      • Show Parameter Name - enable to show the parameter name.
      • Allow Synchronization with Database - enable to synchronize with the database.
      • X/Y - enter the X and Y coordinates.
      • Rotation - use the drop-down to select the rotation. Choices are: 90°180°, and 270°.
      • Autoposition - check to enable auto-positioning.
  • Add - click the Add button to add a parameter. Use the  button to delete a selected entry from the table.
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