PID loops and tuning
11.7 PID Tune control panel
S7-200 SMART
480 System Manual, 09/2015, A5E03822230-AC
The loop responds to the same setpoint change after applying the values determined by the
auto-tune process using the selection for a fast response. Notice that for this process there is
no overshoot, but there is just a little bit of ringing.
To eliminate the ringing at the expense of the speed of response, select a medium or a slow
response and re-run the auto-tuning process.
After you have a good starting point for the tuning parameters for your loop, you can use the
control panel to tweak the parameters. Then you can monitor the loop's response to a
setpoint change. In this way, you can fine tune your process for an optimum response in
your application.
To simplify the use of PID loop control in your application, STEP 7-Micro/WIN SMART
provides a PID wizard (Page 269) to configure your PID loops.
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