Plant process parameters

hello,
How do i find process parameters for my plant? I have seen the general PID autotuning example in labview, but am not able to figure out process parameters like dead cycle, deadband, static gain, load etc etc....
PS:- Theoretically i know the defination of the above mentioned parameters, but i am not able to find their value for my plant so that i can autotune it.
Please help
Attachments:
General Auto PID Simulator.vi ‏25 KB

There is no general way to find the parameters of the plant because an infinite number of possible plants exists.
You should have or be able to determine a general idea of the plant's behavior from your knowledge of the plant itself. Once you have that you may be able to design a set of tests which would allow you to measure the parameters. However, you need to consider carefully the possible consequences of running a test which could force the plant into an unstable or dangerous state.
Lynn

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