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PID S7-1200 : enter the settings manually ??

Created by: serge_pca at: 1/10/2013 2:55 PM (4 Replies)

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1/10/2013 2:55 PM	Rate (0)
serge_pca Advanced Member Joined: 4/6/2010 Last visit: 1/14/2020 Posts: 35 Rating: (0)	Hello, I program asystem to adjust the pH of the water. I can not adjust the installation at the client (too far). Is it possible to change the parameters of PID controller via my touchscreen ? (Do not use the commissioning). Like that my client can parameterize the controller itself depending on the system. Thank you in advance. Serge

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1/10/2013 3:13 PM	Rate (0)
Darius Platinum Expert Joined: 9/28/2005 Last visit: 9/16/2020 Posts: 2957 Rating: (234)	Hello, It is offcourse possible, but PID parameter setting in HMI must be programmed before. If you haven't done that and equipment is already commissioned then you need to go to the customer one more time and implement the ability to set PID parameters from HMI.
	Best regards, Darius
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1/10/2013 3:24 PM	Rate (0)
serge_pca Advanced Member Joined: 4/6/2010 Last visit: 1/14/2020 Posts: 35 Rating: (0)	Darius, I'm busy to program. I would like to adjust the parameters (P, I, D) via the touchscreen. Which variables can I take? Is that the regulator will operate without commissioning? Thanks. Serge

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1/10/2013 4:28 PM	Rate (0)
Denilson Pegaia Platinum Expert Joined: 9/23/2005 Last visit: 1/23/2021 Posts: 3886 Rating: (1149)	Hi, To access directly to PID parameter look at the instace DB.sRet: P = r_Crtl_Gain I = r_Ctrl_Ti D = r_Ctrl_Td etc. take a look also in the TIPs for PID at Tips: PID (FB PID_Compact) /tf/WW/en/Posts/33957#top
	Denilson Pegaia Siemens Industry Sector Technical Support
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This contribution was helpful to 1 thankful Users Darius

1/10/2013 5:20 PM	Rate (0)
serge_pca Advanced Member Joined: 4/6/2010 Last visit: 1/14/2020 Posts: 35 Rating: (0)	Thank you, I'll test tomorrow. Serge

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