Advanced Search

Here is my working  wiring diagram

Thanks again Peter for you help! It is soo nice that the Linuxcnc community helps newbies like myself. This help is hopefully getting me to learn more about Linuxcnc so I can figure out how to fix things. I started of trying to use pncconfig and did't understand alot of the terms and settings info so I went to AI for some help and I can see now that it was not really helpful.
Thanks again,
George

Thank you Rod for that information! I am as I said just an newbie and really don't know squat about Linuxcnc, but with your and Peter's assistance I am learning these errors were at the early stages of the configuration so hopefully I will learn more to get me through. Thannks again
George

georgio wrote:

thank you Peter,
That got rid of the error there but it points now to an error on Hal line 25: empty variable name. I don't know how lines are counted no matter how many ways I counted them it did not make sense to me.
I so very much appreciate your help, I have spending days with AI trying to get this figured out to no avail, you forum experts know this stuff!!!!
Grorge

If you open the file with geany which is part of the linuxcnc ISO. the  editor will show line numbers.

In your hal file, under the addf it has
setp [HMOY] hm2_7i76e.0.stepgen.timer-number 1
setp [HMOT] hm2_7i76e.0.dpll.01.timer-us -100.

Notice the HMOY should be HMOT
-
Editing config files at random never ever ends good.

thank you Peter,
That got rid of the error there but it points now to an error on Hal line 25: empty variable name. I don't know how lines are counted no matter how many ways I counted them it did not make sense to me.
I so very much appreciate your help, I have spending days with AI trying to get this figured out to no avail, you forum experts know this stuff!!!!
Grorge

Already replied on the other thread:
forum.linuxcnc.org/9-installing-linuxcnc...nc-2-9-8-mesa-7i76eu

This section of the hal file is broken in at least 3 ways:

loadrt [EMCMOT]EMCMOT servo_period_nsec=[EMCMOT]SERVO_PERIOD num_joints=[KINS]JOINTS
#loadrt [KINS]KINEMATICS
loadrt hm2_eth board_ip="192.168.1.121" config="num_encoders=1 num_stepgens=4 sserial_port_0=2"
#loadrt hostmot2

1. loadrt [KINS]KINEMATICS is commented out
2. loadrt hostmot2 is commented out
3. loadrt hostmot2 is in the wrong order (it must be loaded before hm2_eth)

It should look like what pncconf creates:

loadrt [KINS]KINEMATICS
loadrt [EMCMOT]EMCMOT servo_period_nsec=[EMCMOT]SERVO_PERIOD num_joints=[KINS]JOINTS
loadrt hostmot2
loadrt hm2_eth board_ip="192.168.1.121" config="num_encoders=1 num_stepgens=4 sserial_port_0=2"

Hello all,
I am a newbie and I might have posted this question on the wrong thread before so I apologize for my lack of knowledge and experience. I have got my board and pc communicatiing and I think I have fixed most of the error but until i get this one fixed I won't know. I have an error which seems to be misidentifiying my z axis. I have a xyyx router setup hopefully to get y  squaring. The error I am getting says an undefined kinematicsSwitch and it leaves my setup with undefined limit on z. All help will be greatly appreciated. I will post my ini and hal files for you to look at.
Thanks again,
George

        Thank you for for your assistance, i VERY MUCH appreciate it.I am having problems with my hal files and my ini files no matter what i do i keep getting the same error message kinematisSwitch not defined. If I could get you look at my ini and hal files I would be eternally gratful. I have got past the communication errors and my pc is able to communicate with the 7i76eu I think I have most errors fixed now but unitl I get this current error out of the way I don't know if ther are anymore. I am not sure if this is the right place to ask, so please excuse my inexperience. Thannks again
George

I am working at tuning some older digital (step/dir command) servos, that don't have any auto tuning capabilities.  In order to avoid needing to use an  oscillo scope I would like to be able to connect a square wave siggen signal to the velocity command input of an unused stepgen on a 7i76eu (I also have a 5i85 for encoder feedback.)  I loaded the siggen, and made the hal connections, set all the parameters and enabled everything from halshow.  I can see the input for the stepgen's velocity-cmd changing, but I don't think any steps are being generated (no changes of any of the stepgen's count or feedback pins.  

Where am I going wrong?  Is this another situation where changes to parameter pins are only effective in a hal file at startup?

I was hoping to just create a little hal file that I can load manually after Linuxcnc was running to set tuning parameters then plug one of the drives step/dir plugs into the testing plug to run the tuning (moving them back to their regular position when running.)

Great, i forgot to ask that

If i get a USB pendant, do i need to have an MPG interface on the controller board? (like the Mesa 7I76EU) or can i just use the USB communications into the LinuxCNC PC? Not sure if i need to connect the pendant to the PC or to the controller.
Any help would be appreciated.

Thanks.

There is no timing issue but they are only settable in the hal file (that is they are only set when the driver loads),
it may be that the way the hal file parsing order works means that they must be in the postgui hal file

Thanks for the reply PCW. The issue I'm running into is that it seems the source/sink masks are only "settable" in my postgui HAL file, which runs after the HAL and GUI start up.

If I move the setp commands to set the masks into my main HAL file, either near the top or last, they don't seem to take effect despite "getp" showing them as being set. I can't put the masked pin into the proper mode (sinking in my case).

When I put them in my postgui HAL, or manually set them with setp after linuxcnc startup, it works just fine.

I'm just wondering if there is some timing constraint when it comes to setting these masks that launching the GUI is covering up.

Thanks