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Xnet issue in orcad pcb designer 17.2

Hello ,

I am facing a serious issue with x net .

I have not set any SI model for x-nets but its showing random group of xnets , how to remove this ?

some of the power nets gets merged with signal net and showing as xnet , its not taking the constraint set for signal . I tried different method but unable to solve

I am not sure whether its imported from schematic library or not !

Please refer attachment .

I use

Thanks

Girish

steve over 5 years ago

You have ore than likely used Constraint Manager linked to OrCAD Capture so xnets are made by default. You need to add a property to the Comps level of the discrete parts connected to these nets called NO_XNET_CONNECTION with a value of True. This can be added in the PCB or the schematic.
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GK MN over 5 years ago in reply to steve

Thanks for your reply , its really helped me a lot :) , I selected all the part on PCB and added this property .

If i want o have xnet for few components ' I should remove No_Xnet property for that particular set of parts and create model right ?

Thanks once again

Girish
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CSCNalu over 5 years ago in reply to steve

Hi

I suspect this might be what my issue is but what's the comps level of the discrete parts? I am in object properties of my schematic and under the "Parts" tab I don't see anything related to comps.

Thanks
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steve over 5 years ago in reply to CSCNalu

So the Comps level is on PCB only. For schematic just add a new property to the Schematic Part called NO_XNET_CONNECTION with a value of True.
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CSCNalu over 5 years ago in reply to steve

Ah that makes more sense - worked perfectly; thanks!
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