Setting Rules in EMI Scanner

The EMI Scanner Rules tab contains the following buttons:

• Load Rules – allows you to select from a series of pre-defined rule sets to load into the Rules pane:
  • Default EM Rules Profile – contains the basic rule set for analyzing electromagnetic interference.
  • Default SI Rules Profile – contains the basic rule set for analyzing signal integrity.
  • Default EM+SI Rules Profile – contains all rules from both the Default EM Rules Profile and the Default SI Rules Profile.
  • Default Rules Profile (0 - 100MHz) – contains the recommended rule set for frequencies ranging from 0 - 100MHz.
  • Default Rules Profile (100MHz - 500MHz) – contains the recommended rule set for frequencies ranging from 100 - 500MHz.
  • Default Rules Profile (500MHz - 1000MHz) – contains the recommended rule set for frequencies ranging from 500 - 1000MHz.
  • Default Rules Profile (1GHz+) – contains the recommended rule set for frequencies 1GHz and above.
• Save Rules – applies changes to the rule profile.
• Import Rules File – allows you to import rules via an XML file.
• Activate All Rules – selects all check boxes in the Rules pane.
• Deactivate All Rules – deselects all check boxes in the Rules pane.
• Export Rules File – allows you to export the current rule settings in XML format.
• Launch – begins the EMI scan.

To set rules for an EMI Scan:

1. Click the Load Rules drop-down menu to select a pre-defined rules profile, or click Import Rules File.

   The Rules pane updates to show all applicable rules for the selected profile.

2. From the Rules pane, use the check boxes to activate and deactivate rules, as appropriate. Also Activate All Rules or Deactivate All Rules.
3. Change the General Settings and settings for Signal Reference, Wiring/Crosstalk, Decoupling, Placement, Net Integrity, Via Integrity, and Power Integrity rules, as appropriate.