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Parent page: Schematic Objects
A sheet symbol is an electrical design primitive. It is used to represent a sub-sheet in a multi-sheet hierarchical design. Sheet symbols include sheet entry symbols, which provide a connection point for signals between the parent and child sheets in a hierarchical design, similar to the way that Ports provide connections between sheets in a flat-sheet design.
Sheet symbols are available for placement in the Schematic Editor only. Use one of the following methods to access the placement command:
After launching the command, the cursor will change to a cross-hair and enter sheet symbol placement mode. Placement is made by performing the following actions:
Additional actions that can be performed during placement while the sheet symbol is still floating on the cursor and before its first corner is anchored are:
This method of editing allows you to select a placed sheet symbol object directly in the workspace and graphically change its size, shape or location.
When a sheet symbol object is selected, you can click and drag the editing handles to resize the sheet symbol.
Click anywhere on the sheet symbol away from editing handles and drag to reposition it. While dragging, the sheet symbol can be rotated (Spacebar/Shift+Spacebar) or mirrored (X or Y keys to mirror along the X-axis or Y-axis).
The sheet symbol's Designator and File Name text fields can only be resized by changing the size of the font used (accessed through the appropriate object's Properties panels). As such, editing handles are not available when either of those objects are selected.
Selected Designator and Filename for a sheet symbol
The following methods of non-graphical editing are available:
This method of editing uses the associated Properties panel mode to modify the properties of a sheet symbol object.
The Sheet Symbol mode of the Properties panel
During placement, the Sheet Symbol mode of the Properties panel can be accessed by pressing the Tab key.
After placement, the Sheet Symbol mode of the Properties panel can be accessed in one of the following ways:
The Properties panel supports multiple object editing, where the property settings that are identical in all currently selected objects may be modified. When multiples of the same object type are selected manually, via the Find Similar Objects dialog or through a SCH Filter or SCH List panel, a Properties panel field entry that is not shown as an asterisk (*
) can be edited for all selected objects.
Panel pages: SCH List, SCH Filter
A List panel allows you to display design objects from one or more documents in tabular format, enabling quick inspection and modification of object attributes. Used in conjunction with appropriate filtering - by using the applicable Filter panel, or the Find Similar Objects dialog - it enables the display of just those objects falling under the scope of the active filter – allowing you to target and edit multiple design objects with greater accuracy and efficiency.
The sheet symbol Designator and File Name fields can be formatted independently of the sheet symbol. The corresponding Properties panels (shown in the below images) can be accessed using the after-placement methods described above (replacing sheet symbol with the relevant object whose properties you want to view/modify).
Right-click over a placed sheet symbol to access a context-sensitive menu, from which the following commands are available (on the Sheet Symbol Actions sub-menu) that act on that sheet symbol (or all currently selected sheet symbols, where applicable).
The Sheet Symbol Actions sub-menu
Example of flipping a sheet symbol along the X-axis
Example of flipping a sheet symbol along the Y-axis
Example result of toggling sheet entry I/O
The actual change depends on the current I/O Type as follows:
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