If you have connected the optional LED, the LED intensity should also change as you adjust the heater output. One way to check the your circuit is to observe the temperature when you change the PWM output.Note that setting the PWM output to 0 turns off the heater and 100 turns on the heater completely. The VI also allows you to control the heater output manually by setting the manual override.The PID output is between 0 to 100% and is used to drive the PWM output.In normal operation, this measured temperature value is then compared with the set value to generate the PID output.The sub VI Temp Control Thermistor.VI returns the temperature in Celsius as measured by the thermistor.The VI first configures the EMANT300 to use the PWM output rather than the counter.LabVIEW Front Panel LabVIEW Block Diagram
