I used tune PID FB50 "TUN_EC" (self-tuning or adaptation of a continuous PID controller) library and PID control block FB41 "CONT_C".
when i give SP and PV input value to PID block and enable input PID_on,STRUC_ON,ADAPT_ON.
then set LLLM_TUN= 0.0, LHLM_TUN= 100.0, CYCLE= T#500MS and enable both PID block .
Then continues show this value GAIN = 1.5, TI = 1h, TD= 0s. don't change any value after change the PV and SP.
As per tune PID automatically set Gain,TI,TD value based on SP and PV difference.
So after try alternate variation in configuration of PID then no any change.
plz if any one do this share sample program or doc.