Inverting jogging sense of X Axis on a VistaCNC P1A-S pendant

Hello,

I'm on LinuxCNC 2.9.4 on Debian. I want to invert the jogging sense of the X axis on a lathe, so that when I rotate the pendant wheel clockwise, the X axis moves in the X- direction. I just changed this in the vc-p1as.hal:

net jog.0.cont-minus  vc-p1as.jog.0.minus  => halui.axis.x.minus halui.joint.0.plus
net jog.0.cont-plus vc-p1as.jog.0.plus => halui.axis.x.plus halui.joint.0.minus

(On the first line I changed to .plus at the end and in the second I put .minus at the end)

This works only for the Velocity mode. In Step mode, the clockwise rotation moves the axis in the X+ direction.

How can I change the X axis direction in Step mode?

One year ago the X axis was moving in the direction I wanted in both Step and Velocity modes (probably on 2.9.2, I don't know anymore). I don't think this is related, but I moved from a parallel port to a mesa card. With only a very basic knowledge of the HAL, I commented out the halui. signal section in the taig_lathe_v2.hal file to make the pendant work.

I'm attaching the relevant files.

Thanks

Try to change both the joint and the axis to the same sign:

net jog.0.cont-minus vc-p1as.jog.0.minus => halui.axis.x.plus halui.joint.0.plus 
net jog.0.cont-plus vc-p1as.jog.0.plus => halui.axis.x.minus halui.joint.0.minus

Thanks Benb, I did that and unfortunately nothing changed. I guess what really determines the direction of the axes is halui.joint.N.[plus|minus]. I even took halui.axis.X.plus and minus out of the configuration line, and the pendant works with just halui.joint.0.[plus|minus].

In my tests I even commented out all the lines that have halui.joint.N.[plus|minus] and Velocity mode stops working, but to my surprise, Step mode still works. It is as if Step mode is set up somewhere else but I can't figure out where.

As far as joint/axis being uncoupled that is possible with the newer version of LNC you may only need joint mode. However, for position mode still active I don't see it anywhere in the hal files you have posted. 

There is this line in your configuration, which I don't know what it does 

net motion-in-position motion.in-position => vc-p1as.is-moving.

This line uses motion.in=position from the motion component not halui. so you have a mix of halui component and motion component for jogging I wonder why they choose this complicated route. I am going to the gym now I will have look at your hal files later and report back.

I'm recalling a message where I stated that the problem was solved. It is not. I'm attaching the present state of the relevant .ini and .hal files.

I looked at the official site for this pendant and the hal file is similar to yours. 
Try this: I just flipped vc-p1as.jog.0.minus and vc-p1as.jog.0.plus   
net jog.0.cont-plus       vc-p1as.jog.0.minus           halui.axis.x.plus         halui.joint.0.plus 
net jog.0.cont-minus     vc-p1as.jog.0.plus              halui.axis.x.minus     halui.joint.0.minus
I this does not work perhaps you could double check the pendant configuration for errors.

Thanks Ben, I tried your suggestion but the behaviour is the same. Works in Velocity mode but not in Step mode.
I spent the morning looking at signals with halmeter but I cannot figure this out.

Thanks for taking your time to look into this.

You need to keep name  for axis z as joint2. I noticed in your ini file you using the name joint 1 that should 2.
For the exposed pin from the vista pedant keep the names of the axis as number example vc-p1as.axis.0,
I attached revised hal file check for typos
revise your own ini file for joint names (numbers)

edit:
have read through this thread:
forum.linuxcnc.org/38-general-linuxcnc-q...ling-to-share#261003

 

Since this is for a lathe, there are only 2 joints in the HAL parameters. LinuxCNC requires that the joints are numbered from 0 consecutively, that is, I can only have joints 0 and 1. The association between joint 1 and the z axis is done in the HAL files. With that association, GCode works properly.

As I mentioned before, the pendant was jogging the X axis as I wanted in Step, Velocity and Continuous mode before I moved to the mesa card. I was using exactly the same vc-p1as.hal file as the one I'm trying to use now. Something very subtle changed and that's what I'm trying to figure out.

I tried debugging with halmeter and see what signals were triggered when I used the pendant, but that didn't help much. I'm still learning about the HAL.

Thanks once again for looking into this issue.