emtim
Member
Hi, I would appreciate some advice on PID control with a S7 313C PLC.
I am thinking about using the SFB 42 (STEP CONTROL) with multiple instance DB's to contol the temperature of 16 heater units. I will use digital outputs to control (via burst firing- zero voltage switching)the 16 seperate single phase thyritor units, which in turn supply the heater coils. Thermocouples being used for feedback.
My questions are:
1. Can anyone give me some tips on setting upthe PID block?
2. Has anyone had experience of problems when using multiple PID blocks at the same time (temp accuracy not too critical)
3 Any other tips... like am i on the right track?
Cheers
Tim
I am thinking about using the SFB 42 (STEP CONTROL) with multiple instance DB's to contol the temperature of 16 heater units. I will use digital outputs to control (via burst firing- zero voltage switching)the 16 seperate single phase thyritor units, which in turn supply the heater coils. Thermocouples being used for feedback.
My questions are:
1. Can anyone give me some tips on setting upthe PID block?
2. Has anyone had experience of problems when using multiple PID blocks at the same time (temp accuracy not too critical)
3 Any other tips... like am i on the right track?
Cheers
Tim