Library Component Properties

Parent page: Sch Dialogs

Summary

This dialog enables designer to view/edit attributes associated with the currently selected component. The dialog also provides access for creating links to new models and/or editing existing ones

Access

In SCH Library editor, click menu Tools » Component Properties

Options/Controls

Properties

• Default Designator - This field shows the part designator, which identifies each part in your schematic project. If you do not enter a designator before you place a part then its designator will be the pre assigned default such as U? To enter the designator before you place a part, press the TAB key while the component is floating under the cursor. If you enter the designator at this time, then the designator will increment automatically (U1, U2 etc) as further parts are placed. If the component is a multi-part device it will automatically be assigned a part suffix, for example U3A, U3B and so on. The suffix will automatically increment if the designator is assigned before you place the part.
  
  
  • Visible - Enable this option to display the designator text field of the current schematic component.
  • Locked - Enable this option to prevent this component from being re-annotated.
     
• Default Comment - Use the Comment field to enter a description of the component, such as 74LS04, or 10K. This field maps to the Comment field of the PCB component when the schematic and PCB are synchronized.

  As well as typing a string in the Comment field, you can also select one of the parameters from the Comment drop down list. This list includes all the Parameters currently available in the Parameters list of this dialog. When one of the =Value parameters is used as the Comment, this parameter can be used to map a component’s simulation Value into the Comment field of a schematic component and its linked PCB component.

  • Visible - Enable this option to display the comment field of the current schematic component.
    
    
• First Part - Click on one of these buttons to assign the current part ID to an existing part of a multi-part device. The field indicates which part this particular instance is, and a multi-part device will be assigned a part suffix, for example U3A, U3B etc. Click << to the first part of a multi-part device.

• Prev Part - Click on one of these buttons to assign the current part ID to an existing part of a multi-part device. The field indicates which part this particular instance is, and a multi-part device will be assigned a part suffix, for example U3A, U3B etc. Click < to the previous part of a multi-part device.
• Next Part - Click on one of these buttons to assign the current part ID to an existing part of a multi-part device. The field indicates which part this particular instance is, and a multi-part device will be assigned a part suffix, for example U3A, U3B etc. Click > to the next part of a multi-part device.
• Last Part - Click on one of these buttons to assign the current part ID to an existing part of a multi-part device. The field indicates which part this particular instance is, and a multi-part device will be assigned a part suffix, for example U3A, U3B etc. Click >> to the last part of a multi-part device.
  

  • Locked - Enable this option to lock the sub part of a component from being re-annotated with a different part ID.

• Description - This field shows the component description, which can be used to describe this component. Edit this field to update the description if required.
• Type - Select one of the following component types from the drop-down list:

• • Standard - These components possess standard electrical properties, are always synchronized and are the type most commonly used on a schematic sheet.
  • Mechanical - These components do not have electrical properties and will appear in the BOM. They are synchronized if the same components exist on both the Schematic and PCB documents. An example is a heatsink.
  • Graphical - These components are not used during synchronization or checked for electrical errors. These components are used, for example, when adding company logos to documents.
  • Tie Net (in BOM) - These components short two or more different nets and these components will appear in the BOM and are maintained during synchronization.
  • Tie Net - These components short two or more different nets and these components will NOT appear in the BOM and are maintained during synchronization.
  • Standard (No BOM) - These components possess standard electrical properties, and are synchronized BUT are not included in any BOM file produced from the file.

Library Link

• Symbol Reference - Shows the reference name of the symbol

Graphical

• Mode - The Schematic editor supports up to three "Modes", or drawing styles, for each part - Normal, DeMorgan and IEEE. Use this option to select an alternative mode. Each mode is defined in the Library Editor, however only the Normal mode must be defined. If the drawing style does not change when you change this option it means that only the normal mode has been created.

• Locked Pins - Enable this option to prevent the pins of this schematic component from being edited. Only the component itself can be edited. If you wish to edit a pin, disable this option.
• Mirrored - Enable this option and the schematic component will be mirrored along the x - axis.
• Show All Pins On Sheet (Even if Hidden) - Enable this option to display all pins including the hidden pins of a component on the current schematic document. Note, power pins are often defined as Hidden. Once a pin is defined as hidden, you must enable this Show All Pins On Sheet option to be able to see them or disable the Hide option in the Pin Properties dialog to show this particular pin.
• Local Colors - Enable the local color option and the schematic component's fill, line and pin colors are overridden with the colors from the Fill, Lines and Pins color boxes respectively. Disable this option to use the predefined colors from the library.

Parameters

This section lists out all parameters of the  schematic component. The designer can add, remove, edit, or add rule parameters with buttons Add, Remove, Edit, and Add as Rule.

Models

This table lists the models (including simulation, PCB, EDIF Macro and Signal Integrity) that link to this schematic component. Select a model and click Edit to configure symbol-to-model links. Multiple models can be linked, the first enabled model of each type is used. The model location is typically not defined at the component level and the model is searched in the currently open and installed libraries.

• Add - Click this button to add a new model (including simulation, PCB and Signal Integrity) that links to this schematic component. Multiple models can be linked, the first enabled model of each type is used. The model location is typically not defined at the component level, the model is searched for in the currently Installed Libraries, then down the project search path (Project » Project Options).
• Remove - Click this button to delete a selected model (including simulation, PCB and Signal Integrity) from the table. This model's link to the schematic component is also removed.
• Edit - Click this button to edit the selected model from the table to configure the symbol-to-model links. This model is linked to the current schematic component and the model location is typically not defined at the component level, the model is searched for in the currently Installed Libraries, then down the project search path (Project » Project Options).