I use NI C-DAQ and 9211 thermocouple module. I read 4 different temperatures. My system works on a cyclic mode. Each of the four temperature is to be controlled by a PID controller using LabView software and analog voltahe out put module 9263. Th set points have to be cyclically changed from 1 to 4. Righnow I am manually changing the thermocouple connection. Can anyone please suggest how to put a selector from 1 to 4 in my programme so that I can have set point without manually changing end connections. .
