Temperatur control analog

Hey guys

I would like to maintain a steady temperature out of an heat exchanger. I have an engine valve (2-10Volt) and a temperature transmitter (0 - 100Celcius). How do I keep the setpoint easiest e.g. 40 degreas
I've looked at PID but is there an easier way?
It's a MicroLogix with analog input and output

Undo edits

Hei!
Did you ever check these pages? One of the cases is a heat exchanger.

http://www.controlguru.com/wp/p45.html

Kalle

PID control on a Micrologix really isn't that hard to set up and will probably give you the most accurate control. I'd read the help manual, play around with it, then ask questions if on here if you can't figure it out. Plus, you'll get to say you learned something new, and that is never a bad thing!

There is an example PID program for a ML1500 in the downloads section. The file is called Hotrod after one of Ron Beaufort's hot rod temperature systems.