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Fine tuning PID on S7-1200

1/20/2020 9:27 AM	Rate (0)
mikhail12345 Member Joined: 4/24/2017 Last visit: 7/6/2023 Posts: 4 Rating: (0)	Hello! I try to configure the pid controller from tia portal v14 on s7-1200. In finetuning mode, auto-tuning takes a very long time, about 20 minutes, and most of the time the output signal does not change. Tell me this is a normal state and how to speed up the process?

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1/20/2020 10:14 AM	Rate (0)
Kashir Bronze Member Joined: 10/24/2012 Last visit: 3/21/2025 Posts: 311 Rating: (21)	Yes it is normal and PID fine tuning is a complicated process to achieve a perfect result so there is no way to speed up the process.
	Kashir Saeed. If this information helps you,then you can use the rate function.
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1/20/2020 11:26 AM	Rate (0)
mikhail12345 Member Joined: 4/24/2017 Last visit: 7/6/2023 Posts: 4 Rating: (0)	Thanks. And you can find out the formula (mathematical algorithm) for which the regulator works?

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1/20/2020 1:39 PM	Rate (0)
Mister T Silver Expert Joined: 4/28/2015 Last visit: 4/7/2025 Posts: 398 Rating: (58)	Hello, did you have a look to the function manual: SIMATIC S7-1200, S7-1500 PID control https://support.industry.siemens.com/cs/ww/en/view/108210036 See: Chapter 2.6 - page 30 / 32 / 34 / 36 Chapter 2.8 - page 38 Chapter 4.2 "PID Compact V2" - page 88 Do you also know the topic page: SIMATIC Technology - PID Control: Overview and Important Links https://support.industry.siemens.com/cs/ww/en/view/109751051 Maybe this is also helpful for you...

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This contribution was helpful to 1 thankful Users dchartier

1/20/2020 2:45 PM	Rate (0)
mikhail12345 Member Joined: 4/24/2017 Last visit: 7/6/2023 Posts: 4 Rating: (0)	Thank you, that's what I was looking for.

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