Nembered Paramenters accessibility.

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06 May 2013 22:22 #33679 by bigalex
Ok now I understand .

So do you think that is possible to ask to the developers board of LCNC to examine this issue ?
I know that Michael Haberler is really into the deep of LCNC .
Do you know how to ask to him an opinion about it ? :unsure:
Just to know .......

bigalex :blink:

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06 May 2013 23:26 #33682 by ArcEye
If you want to put in a Feature Request, first create a sourceforge log in account.

Then go to sourceforge.net/tracker/?group_id=6744&atid=356744

Before you do that I should search the developers list archives to make sure the topic has not already been discussed and decided in some direction
sourceforge.net/mailarchive/forum.php?forum_name=emc-developers

regards

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06 May 2013 23:38 #33683 by bigalex
Hi ArcEye.

Thanks a lot for the indications.

bigalex :blink:

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07 May 2013 06:53 #33690 by mhaberler
Hi

please explain what you are trying to do (not how to use a specific mechanism you are thinking of, which might or might not work for the underlying problem).

-Michael

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07 May 2013 14:16 - 07 May 2013 14:38 #33703 by bigalex
Hi Michael.
I'm very pleased to meet you.
For the application I'm thinking about (I did already this kind of application with other CNC and Motion Controller)
I need to access at the Numbered Parameter for the setup of the machine cycle .
The machine I have to control with LCNC is a multi axis manipolator (aka robot) with cartesian or cylindrical achitecture up to 6 axis.
I have a set of subs and programs (G code) that describe the cycle of the machine (it is quite complicated).
All the subs and programs are pre-programmed and parametric using Numbered Parameters for each single position, speed and settings values.
So the operator do not have to edit or handle any kind of G code file .
The operators on this machine have a very low level skills (aluminum foundry operators) so it is a must to reduce the overall operating complexity.
Usually I make a GUI (aka HMI panel pages) and the operator/supervisor can modifiy the cycle parameters values to adapt
the machine cycle with the production needs.
All this values have to be "retain" after a control shut down.
The Numbered Parameters have to be accessible also during the machine run (G code main program in execution) .
So I would like to access at the Numbered Parameter from pyVCP or GladeVCP or a python script/program or whatever solution
is possible to use.
If you need more info let me know.

I have also another need related to this application and I would like to have your opinion about .
This is the topic to refer to

Thanks a lot.

bigalex :blink:
Last edit: 07 May 2013 14:38 by bigalex.

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07 May 2013 19:46 #33714 by mhaberler

Hi Michael.
I'm very pleased to meet you.
For the application I'm thinking about (I did already this kind of application with other CNC and Motion Controller)
I need to access at the Numbered Parameter for the setup of the machine cycle .


Sorry, we're not ready to dicuss what mechanism you need yet when it is still unclear what goals you actually have, can we stay at a conceptual level for the moment please

do you need to control _what_ is being executed (one of several functions in _a_ program, or one of several programs) based on external inputs?
do you need to control _how_ it is executed (say by varying parameters)?
is it both?

are you selecting a procedure to load and run (say a certain ngc file/routine), or a subroutine in a program, or parameters thereof, or all of this?

Can you post a simple outline of the NGC file(s), indicating what needs to be driven where and how?

-m

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07 May 2013 20:17 #33722 by bigalex
Hi Michael.
I try to be clear as is possible so sorry if I don't .
The whole machine cycle is executed by a G code program that I call MAIN.
Into the MAIN I describe the machine cycle (sequences of movements and logical elaboration)
calling , during the MAIN execution, G code subs like this :

o<fournace_scooping> sub
IF #1001 = 1 ......
......
o<100>
......
......
o<100>
o<101>
......
......
o<101>
G01 ...........................
M1xx M1xx
G0 .................
G1 .................
M1xx
.....
.....
o<fournace_scooping> endsub)

and syncronizing the G code program with the PLC task (Classic Ladder and Modbus) and HAL logic (outside world)
using custom M1xx functions.
The values for the axis positions , speeds and other selection values are stored into Numbered Parameters.
i.e. G01 X#2101 Y#2102 F#2110 .
I will use Numbered Parameters because I need to store the values contained at machine shut down.
The operator/supervisor must be able to change Numbered Parameters values without edit any kind of G code file.
I've not here a sample with G code used on Siemens CNC but I will get it tomorrow.

bigalex :blink:

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07 May 2013 20:44 #33726 by bigalex
Hi Michael.
An example of how the parameters are used on Siemens is here .
This parameters are accessible , from the HMI panel display, while the machine is running .
I hope this help my explanation.

bigalex :blink:

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07 May 2013 20:50 - 07 May 2013 21:47 #33728 by bigalex
Hi Michael.
An example of how the parameters are accessible from a Siemens OCX .
But this is only an example just to help .

bigalex :blink:
Last edit: 07 May 2013 21:47 by bigalex.

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07 May 2013 23:44 #33738 by BigJohnT
Replied by BigJohnT on topic Numbered Paramenters
Why can't you just write over the G code file when they change a parameter and then reload using the python interface?

John

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