How can I automatically name nets in Ansys Simplorer to remove net-name warnings?

When working in Ansys Simplorer (Twin Builder), you may see net-name warnings such as “Net name changed automatically.” These messages appear when wires are labelled with invalid or duplicate names (for example, starting with a number).

If you receive net-name warnings in Simplorer, follow the steps below to automatically assign proper names: 

1. Select the entire circuit 

• Press Ctrl + A on your keyboard to highlight all components and wires. 

• This ensures every connection in your schematic is included for renaming. 

• From the top-left menu, choose Schematic → Auto-Name Wires… 

• The Auto-Name Wires dialog will appear. 

• Choose a Base Name, for example N. 

• Set a Starting Number, typically 1. 

• These options will generate net names such as N1, N2, N3 … 

• Click Apply Net Names to assign names to all selected wires. 

• Check that each wire now has a valid name beginning with a letter. 

• The warnings should no longer appear. 

Notes and Tips 

• These warnings do not affect simulation results — they exist only to enforce proper naming conventions. 

• If you prefer custom prefixes (for example, “PH” for phase nets or “V” for voltage lines), you can replace the base name accordingly. 

• Saving the model after renaming helps keep the updated net list consistent across future exports or coupled simulations.