Author Topic: BOM IGNORE in Orcad 17.2, how to ?  (Read 3020 times)

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Offline chipeaterTopic starter

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BOM IGNORE in Orcad 17.2, how to ?
« on: September 04, 2023, 02:20:45 pm »
Hello, I'm using an older version of orcad 17.2 ( company policy ) but I don't have any support for it.
I'm trying to declare unconnected components in the schematic.
I'm told to use the BOM_IGNORE feature in the component properties but the component is still counted in the BOM.
I can't find the answer to my question.
Does anyone know the correct way to declare an unconnected component in the schematic so that the BOM is generated correctly?

Thank you very much :)

Offline AndyC_772

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Re: BOM IGNORE in Orcad 17.2, how to ?
« Reply #1 on: September 04, 2023, 03:04:12 pm »
The BoM always includes every component that's on the schematic, regardless of whether it has any electrical connections, or represents a real, physical part as opposed to a PCB feature like a test point.

I always just delete them manually. It only takes a moment to remove the lines for TP* and MT*.

BoM generation has always been a weak point of OrCad, intentionally so. If you don't like it, buy CIS.

Online nctnico

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Re: BOM IGNORE in Orcad 17.2, how to ?
« Reply #2 on: September 04, 2023, 06:12:20 pm »
Who buys Orcad without CIS? 8)
With CIS you can create variants where the unplaced components don't end up in the BOM.

A more down to earth solution is to add a 'remark' of 'DNP' field to a component, set that field as a key during BOM generation. That way you should get a BOM in which the unplaced components end up on seperate lines. So at least the assembler knows which components to skip.

I use both methods. It just depends on what is more suitable for the design.
« Last Edit: September 04, 2023, 06:14:20 pm by nctnico »
There are small lies, big lies and then there is what is on the screen of your oscilloscope.

Offline Eternauta

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Re: BOM IGNORE in Orcad 17.2, how to ?
« Reply #3 on: September 06, 2023, 01:47:08 pm »
If in property editor add a property named BOM_IGNORE with value TRUE that component is not included in BOM.
Always used with Orcad 17.2 and 17.4.
Add a red text string "D.N.F." or "D.N.P" on that component as mnemonic

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