can't probe wire

K

kingofjong

Member

• Sep 28, 2018

• #1

Hello

I have build a simple circuit in LTspice. But for some reason I can't probe the wires with the label p. Not sure why I can't probe them. I have attached the file and pasted a picture bellow.

 

Attachments

• kcltest.asc

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dknguyen

Well-Known Member

Most Helpful Member

• Sep 28, 2018

• #2

What are you trying to probe? Voltage? Isn't P just ground? Always zero.

 

ronsimpson

Well-Known Member

Most Helpful Member

• Sep 28, 2018

• #3

You can not probe "ground" which you renamed "p" but is really ground.
The only thing you can voltage probe is the wire at the top of the page. You can current probe V1 or R1. You can wattage probe V1 and R1.

 

alec_t

Well-Known Member

Most Helpful Member

• Sep 28, 2018

• #4

You can connect probe node P to ground via an arbitrary value resistor, but the P voltage will always be zero because the probe has infinite resistance.