Adding Hidden Net to Sheet

Parent category: Violations Associated with Nets

Default report mode:


This violation is related to multi-part components and occurs when you have specified one or more pins to be hidden and connected to an existing net within the design - typically a power pin connected to VCC or GND for example.


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. A notification is also displayed in the Messages panel in the following format:

Adding hidden net

Recommendation for Resolution

The problem arises when the following properties for the offending pin(s) are evident (in the associated Pin Properties dialog):

  • The Hide option is enabled.
  • The Connect To field contains the specific power net name.
  • The Part Number is that of the placed part (i.e. other than 0).

To resolve this issue, you could enable the display of the pin(s) in the workspace (disable the Hide option). This option may prove to be less than desirable, especially if you have many hidden pins connected to power nets. Revealing these pins in the workspace can cause clutter as each pin would need to be wired to the appropriate power port object - preventing the design schematic(s) from being easily read.

A better solution is to clear the Connect To field and set the Part Number field to 0. Leave the Hide option for the pin enabled. Repeat for each pin that has been connected to a power net. Ideally, the power net connections should be assigned through use of part 0 in the source library component.


Only one instance of this violation type will be listed in the Messages panel. When investigating the error using the Details region of the panel, a single entry will be listed reflecting the net that is being added. There may be multiple nets added - such as GND and VCC - but only one will be listed, determined by alphabetical order. If you clear the violation for a particular net, the next net (in order) will appear under this violation type.


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