10/29/2011 8:35 PM | |
Joined: 1/28/2009 Last visit: 10/11/2024 Posts: 6852 Rating: (1365)
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Dear metwally mustafa , Please clarify a bit more.What do you mean by synchronization? Atleast provide a simple graphical representation of your loop plan and also check the attachment for samples provided in this package. Best regards Attachmentsamples.pdf (1006 Downloads) |
10/29/2011 9:39 PM | |
Joined: 10/10/2010 Last visit: 10/7/2024 Posts: 307 Rating: (15) |
this is the block diagram of my application in the attachment
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10/29/2011 9:49 PM | |
Joined: 1/28/2009 Last visit: 10/11/2024 Posts: 6852 Rating: (1365)
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Dear metwally mustafa , You have physical setpoint and a PV.FB41 generates the analog output due to error signal (setpoint-process value).If you want to have same outputs to other motors ,just copy the generated LMN to analog channel selected for the 2nd motor.See the attachment for illustrative example. Also check the following links as I think they are beneficial: Standard PID Package - FB41 Samples before we use the FB 41, Shall the input and output word be scalled/unscalled first? Best regards |
10/30/2011 9:05 PM | |
Joined: 1/28/2009 Last visit: 10/11/2024 Posts: 6852 Rating: (1365)
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Dear metwally mustafa , Note, solution provided is based on the diagram provided.Do you have access to analog command on Motor1? Same issue discussed here: https://www.automation.siemens.com/tf/WW/en/Posts/63725#top Attachment is the solution you are looking for.Please change high and low limit of setpoint and process value signals which are (0.0 and 100.0) there and also customize addresses with your own hardware.Adjust PID parameters for a desired response: [code]//OB1 // L PIW 256 // T MW 256 // L PIW 258 // T MW 258 // set point CALL "SCALE" IN :=MW256 HI_LIM :=1.000000e+002 LO_LIM :=0.000000e+000 BIPOLAR:=#bi RET_VAL:=#ret OUT :="set" //pv CALL "SCALE" IN :=MW258 HI_LIM :=1.000000e+002 LO_LIM :=0.000000e+000 BIPOLAR:=#bi RET_VAL:=#ret OUT :="pv"[/code] Best regrads, Hamid Hosseini AttachmentSP_PV_EX.zip (531 Downloads) |
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