s7300pid

I think the book"control with simatic" from SIEMENS is a good starting
point for whom studying pracical control in university and for engineers in
industry.As the authors claimed the book is written to fill the gap between pure
theorical materials in university and technical issues in university.Before thinking
about your project, I recommend reading of following sections:
1-chapter (1-2)controllers and their names:describes theorical representation of
different controllers which is used in SIMATIC(P,PI,PID).
2-Chapter 2 , planning of loop controls with SIMATIC S7 which introduces functions
used in S7 controller,evolution in the functions and practical points in calling them.
and finally chapter 9 is totally practical guides of implementing and commissioning
of process contrllers.In this chapter, there are several table to calculate P,I,D parameters
specially for S7 controllers.

As I am a university graduate and passed several control courses.I remember this example in
DORF or OGATA textbooks.We did this experiement in university with specially designed package
which none of the compeonents were industrial.I have read SIEMENS book several times to have a better
sense of industrial control.

For testing SIEMENS functions , you need industrial
modules for example:
1-controlling level of a tanke (level transmitter and a control valve)
2-controlling temperature of a tanks (heat exchanger,control valve, temperature transmitter)

if the answer does not suffice, specify your problem to find better solution.

regards