Updating Probing Routines with Probe Enabled Pin

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03 Dec 2022 14:02 #258427 by daveyr
Good morning

Before i go down a path of updating all the Probing routines i wanted a sanity check. 

I am running 2.9-Pre1 and Probe Basic from the Python3 branch. Things are working great, I am at the stage of integrating the probe protection (Only allow probing to run when the probe is connected using topcom.cz/products/smart/smartmer2/ allows combing of different NPN / PNP inputs and also dose disconnected device detection) For this to work i was going to add in M64Px and M65Px for signaling that probing operations should be enabled. (This is working fine in the ETS).

Is there a best practice for adding in and using a variable to pass into the different probing scripts or am i just going to need to do a copy / replace type action.  

What i did for the ETS was the following.
In the Variables section
#<enable_probe_protection> = 1 ; Is probing protection required. 0 = no 1=yes
#<probe_protection_pin> = 0 ; Digital output pin to be used for probe protection signal

Then above the section with the G38.2 i put 
o<115> if [#<enable_probe_protection> GT 0]
 M64 P#<probe_protection_pin> ;Enable tool setting probing allowed pin
o<115> endif

and after the probing has stopped
o<125> if [# GT 0]
  M65 P# ;Disable tool setting probing
o<125> endif

If the best approach is to use a global variable from linuxcnc.var and reference that in all the probe files is there register of variables so i dont tread on anyone else? (Would use 4 Variables, TS Probe Protection, TS Probe Protection Pin, Probe Protection, Probe Protection Pin). 

hope that all makes sense.

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03 Dec 2022 20:03 #258449 by daveyr
I added a section to the default.ini as then it could persist if the linuxcnc.var got wiped.

In there put the 2 pin numbers and then created 2 new subroutines one for enable / one for disable.

Then did a search and replace for all the G38's to have the enable above and the disable below.

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