Machsupport Forum
Mach Discussion => Mach4 General Discussion => Topic started by: thespindoctor on December 11, 2016, 09:53:59 AM
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My machine is working great with limit override and soft limits! ;D It is wonderful to be able to go at rapids to the limits and it always stops now with no limit switches being hit. The only issue is that I have is that I have to activate soft limits by going to another screen to hit the button to turn on soft limits. It would be better to have soft limits on when the Mach4 boots then turn off soft limits if not needed. I see no reason to ever run the machine with soft limits off? Is there a way to set soft limits on at boot.
Thanks
Keith
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Check out the mcSoftLimitSetState command in the API Docs.
DazTheGas
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Thanks!
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This is my first attempt to program in Lua in the PLC script. Trying to turn on softlimits Here is the code that says syntax error.
I have no idea what I am doing... I put the code under the PLC First Run section which should be correct? Got to start somewhere...
Thanks!
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-- PLC First Run
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if (testcount == 1) then --Set Keyboard input startup state
local iReg = mc.mcIoGetHandle (inst, "Keyboard/Enable")
mc.mcIoSetState(iReg, 1) --Set register to 1 to ensure KeyboardInputsToggle function will do a disable.
KeyboardInputsToggle()
----------- turn on soft limits by kfc 12/2016
int TurnOn=MC_ON;
int axis=Z_AXIS;
mcSoftLimitSetState(inst, axis, TurnOn);
int axis = Y_AXIS;
mcSoftLimitSetState(inst, axis, TurnOn);
int axis = X_AXIS;
mcSoftLimitSetState(inst, axis, TurnOn);
-- ----------------------------------------------
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-- turn on soft limits by kfc 12/2016
local TurnOn=MC_ON;
local axis=Z_AXIS;
mcSoftLimitSetState(inst, axis, TurnOn);
local axis = Y_AXIS;
mcSoftLimitSetState(inst, axis, TurnOn);
local axis = X_AXIS;
mcSoftLimitSetState(inst, axis, TurnOn);
-- ----------------------------------------------
?seemed to work???
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compiled last version but bad call almost working
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Try something like this, not near my computer so cant the moment
mc.mcSoftLimitSetState(inst, mc.Z_AXIS, mc.MC_ON)
DazTheGas
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DTG
I tried o do this very same thing a while ago and failed/gave up on it
How about a 2min. Vidieo to educate us that struggle with this lua plc stuff
where should the code be inserted ?
Does it have to be done for each axis ?
But as you say a picture is worth a 1000 words
Stuart
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Stuart
I am sure it goes in the plc program and has to be done for each axis. It needs to be in the section of the plc script where a counter is active so it only gets run one time when the counter equals 1
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It works Here is the code GO to screen edit on operator menu to open editor. Click on top wx of upper left screen Then click on lightening bolt option on lower left box to see plc line the click on ... button to open up plc script. insert where indicated in code below. Compile Save then exit screen editor by clicking on screen edit of operator menu which will ask again to save screen. Now when you come into Mach4 the softlimits will be on and the softlimits button will be green!
-here is section of plc to insert the code into
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-- PLC First Run
-------------------------------------------------------
if (testcount == 1) then --Set Keyboard input startup state
local iReg = mc.mcIoGetHandle (inst, "Keyboard/Enable")
mc.mcIoSetState(iReg, 1) --Set register to 1 to ensure KeyboardInputsToggle function will do a disable.
KeyboardInputsToggle()
--INSERT HERE THE FOLLOWING CODE
-- turn on soft limits
mc.mcSoftLimitSetState(inst, mc.Z_AXIS, mc.MC_ON);
mc.mcSoftLimitSetState(inst, mc.Y_AXIS, mc.MC_ON);
mc.mcSoftLimitSetState(inst, mc.X_AXIS, mc.MC_ON);
-- ----------------------------------------------
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mc.mcSoftLimitSetState(inst, mc.Z_AXIS, mc.MC_ON);
mc.mcSoftLimitSetState(inst, mc.Y_AXIS, mc.MC_ON);
mc.mcSoftLimitSetState(inst, mc.X_AXIS, mc.MC_ON);
[/quote]
Notice the capitalization! Apparently this code is CASE Sensitive! I did not know that. Anytime we want to run a mcAnything() we need to add the mc to the mcAnything to get mc.mcAnything Slowly making more sense. Studying the LUA Scripting Guide line by line is helping to learn Lua. Feeling like a champ right now with these one liners...
Keith
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Video completed just uploading ;-)
DazTheGas
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Here you go
http://www.machsupport.com/forum/index.php/topic,33813.0.html
DazTheGas
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Thank you have a drink on me