These options enable you to change the definitions for the matching signals whose strips you cross-wire automatically.
To access these preferences, in the Preferences dialog box, in the tree view pane, click 
beside Wiring and then click Cross Wiring.
Automatic cross wiring
These options determine how the software implements cross wiring.
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Different strips, same panel — Performs automatic cross wiring of two signals between two different strips belonging to the same panel (this is the default selection).
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Different panels (not including DCS or PLC panels) — Performs automatic cross wiring of signals between two strips belonging to two different panels in the current plant, except for strips with channels (that is, I/O cards).
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Different panels including DCS or PLC panels (terminal sequence connection) — Performs automatic cross wiring of signals between two strips belonging to two different panels in the current plant, including strips with channels where the connection will be done according to the terminal sequence that is shown in the dialog box. Note that we do not recommend using the third option unless you are absolutely certain that this option will select matching signals. In any case, do not forget to change the setting back to the default (Different strips, same panel) when done!
Default wire color — Select the required wire color from the list. Selecting the default wire color determines the cross-wire color in the Connection window. The wire color data in the list is retrieved from the Wire Color dialog box.