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STEP 7 Additional Software

Numeric Methods to Solve ODEs(Ordinary Differential Equations )

Thread Starter: hdhosseini   Started: 7/13/2012 9:52 AM   Replies: 6

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  7/13/2012, 9:52 AM
hdhosseini
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Dear friends  ,

This is an expansion to discussion previously made here:

Laplace equations in Step7



Simply this will provide  all data and documents required for solving ODEs
with SCL.Hopefully, first reading the document may help to refresh
the Euler method.



Best regards,
Hamid Hosseini

Attachment: ODE.pdf  (32 Downloads)
Human beings are members of a whole , In creation of one essence and soul
Sa'adi



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  7/13/2012, 10:01 AM
hdhosseini
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1-First Order Differential Equation

 



Attachment: E1.jpg  (18 Downloads)



=== Edited by hdhosseini @ 3/5/2013 1:46 PM [GMT ] ===


Human beings are members of a whole , In creation of one essence and soul
Sa'adi



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  7/13/2012, 10:07 AM
hdhosseini
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2-Casual Differentiator, as a part of PID controller

 


Attachment: E2.jpg  (21 Downloads)
Human beings are members of a whole , In creation of one essence and soul
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  7/13/2012, 10:31 AM
hdhosseini
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3- Second order differential equations


Attachment: E3.zip  (21 Downloads)
Human beings are members of a whole , In creation of one essence and soul
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  7/13/2012, 1:42 PM
dchartier
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Hello Hamid;
I must tell you I am very impressed with your implementations of ODEs in a PLC environment.
More and more control algorithms being discussed in Control forums require manipulations of ODEs, and it is a great tool you are providing us for furthering our capacity for process control.
Congratulations for the work, and thank you for sharing it with us.
Many regards,
Daniel Chartier

P.S. And this gift arrives on Friday the 13th. For us Westerners, it would seem some magic  might be involved... D.C,
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hdhosseini
  7/13/2012, 9:24 PM
Marcjan
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Thanks for these impressive calculations Hamid.

Stars for youRnf:lblSmileyTooltip_

Gives me a chance to pick up the stuff i learned long ago and forgot because all the standard functions build in S7blush
Good example to learn old things again for me and good for others to learn new things

Keep up the good work.

regards,

Marcjan.


Problem solved?
Please let us know!

Please no technical questions by PM, use the forum!
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Thank you for this post from:
hdhosseini
  7/14/2012, 6:34 PM
hdhosseini
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Hello Daniel and Marcjan,

Thank you for your feedbacks.There are some other
issues to be shared but there is a small problem
.People here are really reluctant to even think a bit
of academic issues which are base of all technological
functions we are using.All those complexities are hidden
from users(programmers) but somehow important to
know them.

As I traced other experts' posts "those kind of data shared
when people ask for them".Hope to have more issues like
this especially in "process automation" to challenge our
knowledge and learn more.cool

Best regards,
Hamid Hosseini



=== Edited by hdhosseini @ 8/23/2012 9:40 PM [GMT ] ===


Human beings are members of a whole , In creation of one essence and soul
Sa'adi


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Marcjan
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