Siemens SIMATIC S7 System Manual page 594

PID loops and tuning
11.7 PID Tune control panel
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 308) to configure your PID loops.
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System Manual, V2.3, 07/2017, A5E03822230-AF
S7-200 SMART