PNCConf Config (Think Im missing something)

Alright Guys,

I think I am just totally missing something here....

Running2.8 on stretch
Trying to setup 7176e atm but also have 7i85 but dont have a clue where to begin to add that...

I make it to the I/O portion and I am just completely lost.

What are the connectors? Are they related to the actual physical connectors on the board like TB1 TB2 ect?

What are the pin numbers? Are they related to physical Pins on the board?

If the pins are not physical pins is there some ryme or reason to what connectors/pins I should assign my I/O ect. to?

once I assign my step gens and skip to the next page, basically everything is grayed out on the motor/encoder config

Also is something supposed to happen when I click the launch test panel button?

Maybe I am over thinking this but I am just lost.

Sorry for the barrage of ignorant questions but I have spent most of the day googling and reading this forum but I feel more confused then when I started, Though I will say everyone here has been extremely helpful!

Did you come along this thread ?
forum.linuxcnc.org/39-pncconf/34018-pncc...25-7i76-7i85?start=0

For a 7i76e, this is a better guide
forum.linuxcnc.org/27-driver-boards/3191...ection-sheet?start=0

All I've ever done is load up halshow and look for the pins I need. But if you look at the 7i76e manual all of the pins are listed in order and matched against the physical port number

I made up a table listing the physical pin (eg TB6-05), the signal (Input 04) and where its connected (gantry Y min limit)

I feel like i'm completely missing something... How do you determine what physical terminal relates to what pin in PNC Config?

I see the listings in the manual for what signal is at what terminal I just don't understand what the numbering convention in PNC Config is referring to?

I appreciate any info!

pncconf numbering system uses the component number rather then the pin number.
The reason is because different daughter cards can change the pin numbering.

Maybe this map - actually for the 7i76 may help:



Chris M

So Chris,how would I identify say input 20? I see it is on terminal 5 on TB5 on the board, but How would I identify in in PNC Config?

The 7i76 ss#0 tab holds the field I/O.
The I/O Connector 1 sets the step generators.



here I set input 20 as a digital in pin.

yes I know it is confusing - and I'm sorry

Chris M

Shit!
I feel like an idiot!

I just found the 7i76 tab Under the I/O with each connector. I have been looking at the I/O connector tabs this whole time.

So what are the I/O connector 1-3

Getting there but still confused,,,,

I/O 1 is for the step generators.
I/O 2 and 3 are for the expansion connectors.

Chris M

Chris Thank you!!! I missed that whole tab somehow

So say I want to hook an encoder to TB3 as depicted in Norberts wiring diagram at this link:

forum.linuxcnc.org/27-driver-boards/3191...ection-sheet?start=0

It looks like it would be under I/O 1 and I just search for the actual signal name?

But then that Idea seems to fall apart when looking for the spindle connections on TB4. Unless they are just fixed and dont need to be assigned? ******EDIT: TB4 is under 7i76 tab*******

Sorry for all the questions.