Hi everyone, Im planning to replace existing temperature controllers with a PLC.
The setup will be aprox 8 thermocuples, and the outputs are 8 solid state relays.
The actual controllers uses PID, so there I have two questions:
1) If i put the same parameters P,I,D that are in the controllers, will the PIDs of the PLC respond the same way as the ones in the controllers ?
2) How can I use the analog output of the PLC to control the solid state relays, should I use PWM ? is it really necessary to use a PID to achieve a constant temperature ?
Im planning to use the Micro800 series of allen bradley.
Any more info needed tell me..
Thanks!
The setup will be aprox 8 thermocuples, and the outputs are 8 solid state relays.
The actual controllers uses PID, so there I have two questions:
1) If i put the same parameters P,I,D that are in the controllers, will the PIDs of the PLC respond the same way as the ones in the controllers ?
2) How can I use the analog output of the PLC to control the solid state relays, should I use PWM ? is it really necessary to use a PID to achieve a constant temperature ?
Im planning to use the Micro800 series of allen bradley.
Any more info needed tell me..
Thanks!