I am using Port 2 Pin 11 for my probe and would like an external LED by where the probe is so I don't have to look at the PC. I'm using Mach4, Smoothstepper (ESS) and
PMDX-126. Don't know how to accomplish this. Thanks for your time and consideration.

In broad terms this is what you need to do.
Hook up the LED to an output on the PMDX
Go to Configure / Plugins / ESS
Go to the Output Signals tab and enable and select the pin mapping.
Go to Configure / Control
Go to the Output Signals tab and enable that output and select the device and pin if not done.
Next you will need to do a minor bit of programing.
Probably in the Signal Script.
Look for the probe strike and tun on the output.

Here is something that may help with the programming.
https://www.machsupport.com/forum/index.php?topic=45397.msg289143#msg289143


Bill

Thanks for your reply. I am currently trying to accomplish this using PMC which seems fairly straight forward. I generated the Lua from PMC and did the screen edit but have not been out to the shop to see if it works. I'll let you know. Using the probe input port 2 pin 11 to turn on the output port 2 pin 16 which I have wired to my LED.