I need some advice how to tune PID properly.
The PID is only PI type (two mode) and its overshooting frequently. Assuming I need to tune P with starting incrementing by very small steps till PID oscillates.
Once the P is established then will be tuning I , again with small increments till PV follows SP.
So this is my assumption below but would like someone to comment on it as I haven’t had to do it before , been learning PLC for 4 months now.
Do I need to start a machine and then start tuning PID or can this be done in more friendly way , offline ?