I have been trying to set up my spindle drive with modbus control. I have used the correct up address of 192.168.1.100. I tested in modbus tcp and I get no error, which is good. I can access the drive via webpage.

I am using a Emerson drive sk commander. The manual (ctan 300 application notes) state I need to set my scanner/controller at input assembly object of 100 and output assembly object of 101? This is part of my confusion. Then it states to use control word registry 40642. Is this what I'm suppose to put in my modbus tcp setup screen.

The ctan application note is pulled right from Google. I also added the pdf of the CTAN application.

I have watched the videos on brains and modbus serial but I am still lost. I right now would like to start and stop vfd, adjust rpm.

But mostly understand this all to. Thanks in advance for everything.