H
Hi all,
I ask your advice for best methods for temperature control using Hitachi H250 series PLC with thermocouple Input module. I need about +/- one degree C accuracy (range 200 C. Simple On/Off logic will not be good enough. I am thinking of a system where I take the difference between a setpoint temp and the actual temperature and using that value to control a timer in such a way as to give best accuracy and response times - any idea's will be most appreciated. I would like to use a new PID temperature control module but cannot get one for this PLC?
thanks - contact me at [email protected]
I ask your advice for best methods for temperature control using Hitachi H250 series PLC with thermocouple Input module. I need about +/- one degree C accuracy (range 200 C. Simple On/Off logic will not be good enough. I am thinking of a system where I take the difference between a setpoint temp and the actual temperature and using that value to control a timer in such a way as to give best accuracy and response times - any idea's will be most appreciated. I would like to use a new PID temperature control module but cannot get one for this PLC?
thanks - contact me at [email protected]