Auto zero g540

[Dan73]

After reading on the subject I do not understand why some uses resistance ...

Does anyone can help me with the connection of the autozero tool please ... and do i need resistor or not .. and why use it ?

Thanks
Dan

[Dan73]

nobody can help me ?

[doorknob]

Can you post one or more links to what you have been reading?

I can not be certain from your description, but it is possible that the resistor that you are talking about is a "pull-up" resistor which would hold an input pin to a logic "high" value until a probe grounds out that input - in that case, your software would be looking for an "active low" signal to signify the zeroing of the touch plate.

[Dan73]

Hi doorknob
yes I was talking about the "pull-up" resistor
How can I know more about the "pull-up" resistor for my g540 gecko drive, I don't know exactly what kind I need to do this ...

Thank you
Dan

[doorknob]

I guess that I'm a little bit reluctant to give advice on this at the moment (without looking at the articles or posts that you have read) because I haven't actually done a touch plate with my G540.

My understanding is that each of the four inputs to the G540 may already have an internal pull-up resistor, because the inputs already are designed to look for the pins to be grounded to send a signal that can be read by Mach3. So, if that is correct, then I don't think you would need or want to add an external pull-up resistor.