Hi Frenchy,
Thanks for your help. I'm right now declyning on ethernet comunication in this application... I will probly use PTO to control the number of pulses I will need to acchieve my position. I have two weeks to figger it out how to do this...About your questions, to receive a feedback I will use an encoder, my tolerance it's quite big, 1mm or so. My applictaion is a press, I don't really know how to explain it in english, but feeding is the secret in the system, a have to tell the drive to turn on the motor to spin until my desire lenght of material and then stop, with out a help of a stop device, like a sensor. It's basicaly this, see you.
Arnildo