RLidster

Hi There I'm a bit of a novice and i am aware that parts of the title of this post are featured in a few others but i don't quite understand how to bring everything together with my example... My current setup is a; Temp probe (EI-1034) connected to a labjack U3 (AIN0) (channel = tempprobe) Solid state relay control set as dig out on FIO4 - (Channel = relay) logic low = off (0), Logic High = On (1) What i would like to do is power a heater using the SSR but use PWM and a PID loop to control the temperature of a box. I.e Vary the power to the heater by PWM of the SSR which in turn is controlled by a PID loop with the Temp probe and a temperature setpoint. Thanking you in advance! Best regards Rich