Is there a way to put a button on a page you are building to simulate an input? For example, if I am playing around with homing or a touch probe, can I have a button to simulate the input pin that is set up for one of the external switches?

You can use a keyboard key to do it.
Go to Ports and Pins > Input pins, and check "Emulate" for the input. Then click Hotkey, and you'll be prompted for the key.

Thanks!

Have done all of the simulating so far with my laptop...got my parallel equipped desktop today...transferred all of the Mach 3 stuff over...somehow I broke the keyboard homing and limit switch emulation?!? When I go to the diagnostic screen, and press the key that emulates the switch, Z, for example, is the Z axis limit switch emulation, it shows green when I press the key, but if I try to home the z axis, the "z" key will not stop it?!? I have checked all of the settings, and I copied the xml file to the new install, so everything should be the same, don't know what I am missing?

Thanks

You need to have the parallel port driver installed, and the PC must have a 32 bit OS for emulation to work.

Hmmmm....I did get a parallel port error when I installed...blew it off because I thought it was because there was nothing hooked to it...will check it out, maybe the address for the port is wrong...

Thanks...

The wrong port address won't give you any errors.

Any thoughts on what to look for? Are there any utiliities I can run to diagnose?

Thanks for your help

What operating system is it?
If it's a 32 bit OS (Must be Windows 7 or older), run Drivertest.exe in the Mach3 folder. That should install the driver if it's not installed.

Win 7 pro...will do

Thanks