I need help I took some RSLOGIX training courses back four or five years ago but I am just now getting my first programming opp. Ill cut to the chase. I have five different motors that I am having to control the RPM's for a certain amount of time. Im assuming I need to use PID control and each one has a tach I can use for feedback. What I was going to do was use a ramp function if I can remember how, and then a loop for each motor and let it get the RPM's into an acceptable range. After all 5 motors have done so, I then need them to run at that RPM for a minute. After they have done so for a minute I have to change the RPM's to a new setpoint. Which is an all new rung with the same setup just new setpoints. Am I way off base here? Does the PID do the converting for me? Meaning if I have a motor with a max RPM of 135, and need it to run at 25 for a minute, what setpoint will I have in my PID. I mean its not gonna understand nor know the max rpm of the motor. Do I need to do some math here? As much help as possible please.