Compare main page

You can explore the comparison results between two revisions of the same PCB design in detail on the different tabs of the Compare main page.

Information tab

The Information tab displays an overview of the compared PCB designs and the statistics of the modified entities.

Option Description
Information table Displays the number of modified components, holes, and areas between the two design revisions.

PCB tab

The PCB tab displays, side-by-side, the PC board layer attributes for the compared designs in an interactive table and a simple board thickness viewer.

Option Description
Layers interactive table Displays the name, type, and thickness of the board layers that represent complex heat conduction paths due to dielectrics, traces, vias, and other entities.

When you select a layer in the table, the software highlights it on the PCB model displayed in the board thickness viewer.

Board thickness viewer Displays, graphically, the layers in the board thickness.

Components tab

The Components tab compares the PC assembly components. It displays their status and their reference designator arranged in an interactive table with the information listed in the following table.

Component attribute Description
Status Indicates if the component is unchanged, modified, added, or deleted.

The app uses a color code, which you can control on Comparison tab of the Settings page, to help you visually identify the changes.

For modified components, you can click to open the information window that displays the change details between the two designs, such as changes to owner or height attributes, or position changes.

Change ID Displays the identifier created by the app to track the change.
<First PCB design> Displays the component reference designator of the first PCB design for the change.
<Second PCB design> Displays the component reference designator of the second PCB design for the change.

Holes tab

The Holes tab displays the changes in the hole attributes between the two PCB designs. The changes are displayed in an interactive table with the information for each design listed in the following table.

Hole attribute Description
Status Indicates if the drilled hole is unchanged, modified, added, or deleted.

The app uses a color code, which you can control on Comparison tab of the Settings page, to help you visually identify the changes.

For modified holes, you can click to open the information window that displays the change details between the two designs.

ID Displays the unique identifier of the drilled hole.
Type Identifies the type of drilled hole as pin, via, mounting hole, tool, or other.
Plating Identifies the plating style as a plated or a non-plated hole.
Size Identifies the drilled hole diameter in millimeters.

Areas tab

The Areas tab displays the changes in the restriction area attributes between the two PCB designs. The changes are displayed in an interactive table with the information for each design listed in the following table.

Area attribute Description
Status Indicates if the restricted area is unchanged, modified, added, or deleted.

The app uses a color code, which you can control on Comparison tab of the Settings page, to help you visually identify the changes.

Name Displays the name of the area.
Type Identifies the restriction area type, for example, keep-in, keep-out, copper, or other.
Kind Identifies the restriction area subtype, which depends on the area type. Some possible area subtypes are:
  • Routing defines the selected area as the routable area. This area must lie completely within the edges of the board. It is only available for keep-in, room, keep-out, and obstruct areas.
  • Placement defines the selected area as the maximum area on the board for placing components. This area can extend outside the board outline to accommodate overhanging components, such as switches, connectors, and LEDs. It is only available for keep-in, room, keep-out, and obstruct areas.
  • Placement Group defines the selected area as the area within which certain groups of components should be placed, for example, an analog portion of a circuit. It is only available for keep-in and room areas.
  • Via defines the selected area as the area where vias are not permitted but routing is still allowed. It is only available for keep-out and obstruct areas.
  • Copper defines the copper area. It is only available for copper areas.
  • Other defines the restriction area as another subtype for any other restriction of special use to ECAD. It is available for area types other than keep-in, room, keep-out, obstruct, and copper areas.

Viewer tab

The Viewer tab lets you graphically explore the comparison results of the PCB design revisions with cross-selection capability between the interactive tables on other tabs and the 2D viewer.