Are there any Tutorials on the DM8500 and how to use DM KONTROL to program DM TCE?

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There are several projects I am planning to use the DM8000 or DM8500 for, but trying to find pragramming information is extremely challenging.  Before I spend that much money, I would like to have an idea that it will work and do what I want it to do.  I found the DM8000 manual which was helpful, and the Designer software has some limited help built in, but I have no idea how KONTROL interfaces with designer or how to program/use the touch screen on the DM TCE


Thanks in advance for your help!