How to start Hal in interactive mode
06 Feb 2016 03:37 - 18 Feb 2016 16:35 #69689
by jamby
How to start Hal in interactive mode was created by jamby
Hi
The tutorial I am attempting to follow says
cd linuxcnc
halrun
halcmd: this last line is meant to show the interactive command line.
But when I run halrun it responds:
halrun: Realtime already running. Use 'halrun -U' to stop existing realtime session.
there is no sign it is in command mode and the command
loadrt siggen
generates this error: -bash: loadrt: command not found
Is this because I have linuxcnc running?
Don't know were to go from here.
Jim
(a idiot proof pin is only as good as your idiot)
Edit: This is a continuation of a earlier post Here about retrofitting my Crusader II control on an Alliant 42vc Mill.
The tutorial I am attempting to follow says
cd linuxcnc
halrun
halcmd: this last line is meant to show the interactive command line.
But when I run halrun it responds:
halrun: Realtime already running. Use 'halrun -U' to stop existing realtime session.
there is no sign it is in command mode and the command
loadrt siggen
generates this error: -bash: loadrt: command not found
Is this because I have linuxcnc running?
Don't know were to go from here.
Jim
(a idiot proof pin is only as good as your idiot)
Edit: This is a continuation of a earlier post Here about retrofitting my Crusader II control on an Alliant 42vc Mill.
Last edit: 18 Feb 2016 16:35 by jamby. Reason: add info
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- Todd Zuercher
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06 Feb 2016 04:44 #69692
by Todd Zuercher
Replied by Todd Zuercher on topic How to start Hal in interactive mode
yes, If you need to run a hal command while Linuxcnc is running you can do it from the Halshow window (found in the machine drop down menu in Axis).
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06 Feb 2016 05:21 #69693
by PCW
Replied by PCW on topic How to start Hal in interactive mode
You can run halcmd when LinuxCNC is running, but not halrun:
halcmd loadrt siggen
Halrun is not needed when LinuxCNC is already running because its task
is to setup the real time environment (and LinuxCNC has already done this)
The advantage of halcmd over the halshow window is that you have the
command line history and editing features of the shell and that halcmd can be
used in shell scripts.
halcmd loadrt siggen
Halrun is not needed when LinuxCNC is already running because its task
is to setup the real time environment (and LinuxCNC has already done this)
The advantage of halcmd over the halshow window is that you have the
command line history and editing features of the shell and that halcmd can be
used in shell scripts.
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06 Feb 2016 14:35 #69699
by jamby
Replied by jamby on topic How to start Hal in interactive mode
Thanks Guys
That helps a bunch.
Jim
That helps a bunch.
Jim
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08 Feb 2016 19:07 #69776
by andypugh
Replied by andypugh on topic How to start Hal in interactive mode
halcmd -kf will connect you to an existing HAL session and leave you at the halrun prompt, so you don't need to type "halcmd" every time, and get tab-completion
The following user(s) said Thank You: MacGalempsy
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08 Feb 2016 21:35 #69786
by jamby
Replied by jamby on topic How to start Hal in interactive mode
Andy
What I am trying to do now is run HalScope during a linuxcnc session and tune the servos, ferror, P, FF1, FF2
But I am a knob on and don't know how to capture a axis move on the scope.
Jim
What I am trying to do now is run HalScope during a linuxcnc session and tune the servos, ferror, P, FF1, FF2
But I am a knob on and don't know how to capture a axis move on the scope.
Jim
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08 Feb 2016 21:49 - 08 Feb 2016 21:50 #69789
by Todd Zuercher
Replied by Todd Zuercher on topic How to start Hal in interactive mode
In axis on the pull down menu for Machine, there is an option to open Hal Scope.
You may want to read up on the manuals for Hal Scope.
The first time you open it it will open the configuration window. I usually set it to trace 4 signals sampling in the servo thread, which is plenty for most servo tuning.
You'll also want to click on Configuration in the Machine pull down menu of Axis as well. This is where you can input your changes to P, I, D, FF1, FF2... for testing and then save them permanently to your ini file.
There are several servo tuning tutorials specific to Linuxcnc. Search them out they can be quite helpful.
You may want to read up on the manuals for Hal Scope.
The first time you open it it will open the configuration window. I usually set it to trace 4 signals sampling in the servo thread, which is plenty for most servo tuning.
You'll also want to click on Configuration in the Machine pull down menu of Axis as well. This is where you can input your changes to P, I, D, FF1, FF2... for testing and then save them permanently to your ini file.
There are several servo tuning tutorials specific to Linuxcnc. Search them out they can be quite helpful.
Last edit: 08 Feb 2016 21:50 by Todd Zuercher.
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08 Feb 2016 21:58 #69790
by jamby
Replied by jamby on topic How to start Hal in interactive mode
Todd
I've been reading BJT's servo tuning page and the Hal Manual about HalScope. But I am missing the idea of, do your run a short move program or how do you produce the data you want to chart. Some where someone mentioned you cant get it jogging.
So as usual I am lost.
Jim
I've been reading BJT's servo tuning page and the Hal Manual about HalScope. But I am missing the idea of, do your run a short move program or how do you produce the data you want to chart. Some where someone mentioned you cant get it jogging.
So as usual I am lost.
Jim
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08 Feb 2016 23:30 #69798
by BigJohnT
Replied by BigJohnT on topic How to start Hal in interactive mode
I just do a MDI G0 for rapid and a G1 for cutting speed check. So if I'm tuning the X axis I have two MDI's that I click one like this:
G0 X2
G0 X0
JT
G0 X2
G0 X0
JT
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09 Feb 2016 01:57 #69809
by jamby
Replied by jamby on topic How to start Hal in interactive mode
JT
What settings for the "trigger" do you use?
Jim
What settings for the "trigger" do you use?
Jim
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