i have problem with pole placement and plc

i dont have any information about how to implement the pole placement method in plc..i use pole placement to control dcmotor speed..
this my final year project..
so i hope u guys can help me to solve the problem..thanks

Hello,
I suppose You know theory and You can compute this analytically.
Do You have parametric model of Your dc motor?

Any way, first You have to implement discret function block. To do this necessary is constant period time between two next calls of Your function. It depends what kind of PLC You use, easiest way is to set constant interval of plc scan time, in other way You have to use time interupts.
I did somthing similar on Bechoff CX1020. If You want I could send You my function of discret filter.

Regards,
Szymon

I just love this graphic


I would have left this at the just the search button picture but I got a message saying my post was too short.

i know the analytical, the calculation...but to implement it in plc CQM1H-CPU51, theres the problem...

i use dc servo motor (i not sure the name of that motor.. i think clifton sumthing la)
and the driver for the motor, i use G340 servodriver..