I'm new here realy need a help, I am stuck.
I need to make PID temperature regulation of heat chamber ( for my school work), using Mitsubishi plc fx5u in GX Works3 FBD/LD program. I don't have any modul of temperature sensor. I use NTC resistor connected to AD. I use PID function block, I made almost all program but , don't understand two things:
1. How to input my paramerers ( Before I made matlab simulatiom of proces and I got the paramerers, Proportional gain and Integral time. Problem is my Kp= 0.072 and my Ti=144.82s, dont use KD. ) In manual writes: setting range is 1 to 32767 (%) and I dont now how ti write my value. What meant this precentage. For Ti Setting range is 0 to 32767 (x100 ms), here I need writes my time in ms?
2. I don't now how to connected my output of PID (MV) to turn on and off heater. Can I use PWM function? Or i need to use high speed timer? How to make it?
Can it make like I started or need to change all conncept?
please help me!!!!