I have a few questions related to the ladder and ladder logic. I am working on a Fanuc 11M model A.

I'm issuing a M code and the machine waits for feedback from a microswitch. I need to know where to wire in that microswitch.

1. Is there a way to see which logic circuit or logic block a program is waiting on feedback from?

2. How can I translate that logic circuit or logic block in the ladder to a physical wire in the I/O unit in the 11M control?

If you can answer either of these questions I would be very greatful.
A reference on how this ladder logic works would also be interesting to have.

This is all related to my project of upgrading to a 4th axis... I am almost there! If you're interested in the details, please see this thread:

http://www.cnczone.com/forums/fanuc/...ng_4_axis.html