Author Topic: Inverse net tie?  (Read 2396 times)

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Offline radar_macgyverTopic starter

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Inverse net tie?
« on: April 12, 2016, 12:10:59 am »
I'm 'abusing' Altium to do schematics for industrial control enclosures. I made a library with parts for things like terminal blocks, power supplies, etc. I give the nets descriptive names, so that when things span sheets it still has connectivity.

My question is regarding the terminal blocks. How would I tell AD that I want pins 1 and 2 to be the same net? It's sort of the inverse of a net tie (separate nets, but connected in copper on the PCB).

If this worked, the rules checker (when compiling the project) would flag mistakes. Otherwise, (for this application) AD is just a drawing program.
 

Offline mairomaster

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Re: Inverse net tie?
« Reply #1 on: April 12, 2016, 10:00:19 am »
If I understood what you want correctly, you can just give the same designators to the two pads in the footprint of the terminal. Altium might still require from you to connect them with copper in the PCB. That is normally a good practice, but in case you really don't want it, in the footprint you can use the same jumper setting for the two pads (jumper ID = 1 for example). Then you won't need to connect the two pads on the PCB.
 
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Offline radar_macgyverTopic starter

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Re: Inverse net tie?
« Reply #2 on: April 13, 2016, 05:56:39 am »
There are no footprints for this project since there's no PCB, it's just schematics for an electrical enclosure.

I've tried setting the same pin name for multiple pins in a symbol, but that gets flagged as an error, and there's no connectivity between the two nets. I'll post an example here when I get to work.
 

Offline radar_macgyverTopic starter

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Re: Inverse net tie?
« Reply #3 on: April 13, 2016, 09:29:23 pm »


Here's an example of what I meant. Here, TB3-1 through TB3-6 are DIN rail terminals. I am manually naming the nets on both sides of the terminal block so that they match. I would like the tools to know that those nets are internally connected by the terminal block. Is this possible? If so, the DRC would tell me when the two sides don't match.

EDIT: fixed image link
« Last Edit: April 13, 2016, 09:36:51 pm by radar_macgyver »
 


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