Hey guys, I need some help in determining a PLC for a project. I've never used a PLC or Ladder Logic before and have done some research but am still a bit overwhelmed at the number of different options. I'll be controlling a Variable Frequency Drive (VFD) that has analog inputs of 0-10vdc and 4-20mA, analog outputs 0-10vdc, as well as a 0-10vdc transducer. How do I go about spec'ing out a suitable PLC? I'd prefer to stick with AB if at all possible. Any help is appreciated, thanks.