hello All:
I am now developing a machine controlled by mach3, when X,Y or Z move above limit position, Mach3 will always on emergency status, until I power off the machine, and move the X Y or Z by hand to leave the limit position, and then power on the machine.
my question is : when my user use my machine, I don't want him to move the X Y or Z, so I want to solve this question by the following steps:
1 Limit stop
2 I click a button in mach3 to do
   a) shield limit signal
   b) drive X Y or Z move to a safe postion
   c) active limit signal
3  machine is ok

so the techic is how to shield the limit signal in mach3 in VB ( I don't want user to change the config/ Ports and Pins),he need only click a button

On the setting page (Alt6) , they're 2 functions:

1:  Manual limit override

2: Automatic limit override

Try Automatic limit override and you should be able to move your axis fromn the limit switches.

About the VB, can't help with that


Jeff

thank you jeff!
you give me a way , I will try to test, and also I found that I can modify a vb code to implement only with OEMCode=150 ,and judge all the axis positon ,and move a distinct all this finished