PID controller

From the product data it is very clear that the SSR control uses 12VDC, so you are correct that you need a DC / AC SSR.
Once you change the SSR, I would then just use the auto mode to control a set temp. Once you start trying to program them like a PLC then that is where it gets complicated.

And now it works!! ;D

Happy days ;D

Yes sir! Thanks to all for taking the time to help.