I'm setting up my tool changer and I want to stop the macro if one of the SignalWait calls comes back with an error.  I want to move from that point to the end where I have an error message; this works when I debug, but it reads through the rest of the macro, turning on and off my cylinders for the tool change.
I tried mc.mcCntlMacroStop and mc.mcCntlMacroAlarm.  Those don't stop Outputs from coming on, I just tested this; this is not good.  I have it stop because one of the cylinders messed up, I don't want the arm to get out of sync with the remaining cylinders coming on after one is stuck.
So, I'm just looking for a way to stop the Macro either dead in it's tracks with an alarm message or not (I already have a message for the error), or jump to a specified point in the bottom of my macro.

Something like this should be pretty close.

--Put this in your macros function
if (rc ~= 0) then
msg = mc.mcCntlGetErrorString(inst, rc) --Get the returned error string
m6.errorOut(msg) --Run the m6.errorOut function passing it the msg parameter
return --Exit the function this is in
end

--Add this function
function m6.errorOut(msg)
local inst = mc.mcGetInstance()
mc.mcCntlMacroAlarm(inst, 3, msg)
end

I couldn't get the m6.errorOut() to work.  Does that go in the Macro as well or does that go in the screen load script?  I tried both, putting it in the screen load script gave me a Script Error and putting it in the macro did nothing.  It didn't read the Function at all.

However, the "return" is exactly what I was looking for; that works perfect.  I would still like to know more about this other function though.

Yup, all goes in the macro. Get rid of the m6. at the beginning of the errorOut function name and where it is called.

function m6()

local inst = mc.mcGetInstance()
local rc = -40
--local selectedTool = mc.mcToolGetSelected(inst)
--local currentTool = mc.mcToolGetCurrent(inst)
--local maxDown = -4.0000 --Max distance Z will go down in the touch routine
--local rate = 30 --Feed rate the Z will go down in the touch routine
--local safeZ = 0 --Machine coordinates the Z will rapid to after touch move
--
--if selectedTool == currentTool then
-- mc.mcCntlSetLastError(inst, "Current tool == Selected tool so there is nothing to do")
--else
-- --Remove this line if you would not like the Z axis to move
-- --mc.mcCntlGcodeExecute(inst, "G90 G53 G0 Z0.0");--Move the Z axis all the way up
-- mc.mcCntlSetLastError(inst, "Change to tool " .. tostring(selectedTool) .. " and press start to touch off") --Message at beginning of tool change
-- mc.mcCntlToolChangeManual(inst, true) --This will pause the tool change here and wait for a press of cycle start to continue
-- mc.mcToolSetCurrent(inst, selectedTool)
-- mc.mcCntlSetLastError(inst, "Performing touch routine")
-- mc.mcCntlGcodeExecuteWait(inst, string.format("G31 Z%0.4f F%0.4f\nG0 G53 Z%0.4f", tostring(maxDown), tostring(rate), tostring(safeZ)))
-- mc.mcCntlSetLastError(inst, "Touch move complete")
-- mc.mcCntlSetLastError(inst, "Current tool == " .. tostring(selectedTool) .. "   Previous Tool == " .. tostring(currentTool)) --Message that shows after Cycle Start
-- local didStrike, rc = mc.mcCntlProbeGetStrikeStatus(inst)
-- if (didStrike == 1) then
-- --5063 = User position 5073 = Machine position
-- value, rc = mc.mcCntlGetPoundVar(inst, 5063)
-- mc.mcToolSetData(inst, mc.MTOOL_MILL_HEIGHT, selectedTool, value)
-- mc.mcCntlGcodeExecute(inst, string.format("G43 H" .. tostring(selectedTool)))
-- mc.mcCntlSetLastError(inst, string.format("Tool " .. tostring(selectedTool) .. " H offset set to %0.4f", value))
-- else
-- mc.mcCntlSetLastError(inst, "The touch move did not touch so we did not set a tool offset.") --Message that shows after Cycle Start
-- end
--end
--Put this in your macros function
if (rc ~= 0) then
msg = mc.mcCntlGetErrorString(inst, rc) --Get the returned error string
errorOut(msg) --Run the m6.errorOut function passing it the msg parameter
return --Exit the function this is in
end

end

--Add this function
function errorOut(msg)
local inst = mc.mcGetInstance()
mc.mcCntlMacroAlarm(inst, 3, msg)
end

if (mc.mcInEditor() == 1) then
m6()
end

Ok.  That works great! 
I didn't know you could run another function like that inside a macro.  That's awesome!!

 

Yeah, it is handy.