Altium NEXUS Documentation

WorkspaceManager_Err-GlobalPowerObjectScopeChangesGlobal Power-Object Scope Changes_AD

Created: August 3, 2021 | Updated: August 3, 2021
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Parent category: Violations Associated with Nets

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This violation occurs when a port-based object (port, offsheet connector) has been connected to a power port object. The power object can no longer exist on a global level - connected to a global power net - and is instead changed to be a local-level power net.


If compiler errors and warnings are enabled for display on the schematic (enabled on the Schematic - Compiler page of the Preferences dialog), an offending object will display a colored squiggle beneath it. Hovering over the object will display a pop-up hint that summarizes the violation. A notification is also displayed in the Messages panel in the following format:

Global Power-Object <NetName> at <Location1> has been reduced to local level by presence of port at <Location2>


  • NetName is the net to which the power port object is associated.
  • Location1 is the X,Y coordinates for the power port object's electrical hotspot.
  • Location2 is the X,Y coordinates for the port object's electrical hotspot.

Recommendation for Resolution

This violation can typically arise when a power port object is incorrectly wired to a port rather than the intended pin or sheet entry. There may, however, be cases where you want to force (and use) a scope change of this kind. With the violation selected in the Messages panel, use the Details region of the panel to quickly cross probe to the offending objects. Assess whether the connection between port and power port is intended and, if not, remove the power port and wire the remaining port object to its intended destination as required.


  • Object hints will only appear provided the Enable Connectivity Insight option is enabled on the System - Design Insight page of the Preferences dialog. Use the controls associated with the Object Hints entry in the Connectivity Insight Options region of the page to determine the launch style for such hints (Mouse Hover and/or Alt+Double Click). 
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