Backward Euler Integration

Hello everyone,
I am writing a VI to simulate the response of a hydraulic system. Most of the program runs perfectly, but certain sections require integration which has proved to be a problem.
I have attempted to use 'Numeric Integration.vi', and have written a forward Euler subVI, which both fail to converge due to the nature of hydraulic systems. It seems that Backward Euler integration is the solution, but I have been unable to find a way to implement it.
I have tried evaluating the 'Control Design and Simulation' module, which has a range of integration methods, but the module itself seems unsuitable.
I was hoping somebody would have a better understanding of the equations than me, as the implicit nature of Backward Euler is causing me some difficulty.
Edit: I have attached a snippet which I have been using to test out possible solutions. It provides testing data and compares the result to the value I am aiming for, which was generated using different software.
Thanks,
Cameron
Solved!
Go to Solution.
Attachments:
Integration Options.png ‏809 KB

Just a side note: Your upper code can be replaced by a simple integral x(t).vi. Same result.
LabVIEW Champion . Do more with less code and in less time .
Attachments:
Integral.png ‏2 KB

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Verify transfer function

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Attachments:
transfer function.jpg ‏41 KB

Hi,
Before I answer, let me review something here, so we are talking the same thing. To be able to simulate continuous systems in a computer, we use differential equation solvers that numerically try to come with a solution for the equation. These techniques are easily encounter in the literature, but, in general you would see solvers that are fixed step size, as Runge-Kutta 1 (Euler) which is a single-step explicit
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If you are really looking to simulate dynamic system in LabVIEW, you should look into the Simulation Module. It allows similar functionality as Simulink and also allows you to choose Variable Step size for the integrator. Look into: http://www.ni.com/realtime/control_design.htm OR http://sine.ni.com/apps/we/nioc.vp?cid=13852〈=US for more information about this and other new tools for Control Design and Simulation in LabVIEW.
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Integration services backward compatibility

Hoping someone will know the answer to this.
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http://ITProctology.blogspot.com
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Can I work backward from APO CIF function module to ECC Integration Model

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Hi David,
I was away in a long meeting and just came back. A quick check in another R/3 (Enterprise) system showed the following:
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Lucky me I checked the internal Sandbox systems instead of my client systems otherwise I would have posted there is no FM CIF_TLANE_SEND
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Hope this helps. I am logging off for today - so no more further digging. But thanks to you I discovered another small "blackbox" of SAP. Will blog on this some time later - till then you can take a look at the [CIF Wiki|https://wiki.sdn.sap.com/wiki/display/SCM/CIF] page.
Best regards,
Somnath

Discover Integration - EUL Not Found

I'm trying to integrate a discover worksheet into Oracle Portal 10.1.4 but keep getting the error
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Fixed - just restarted the portal OC4J

Oracle Portal and Discoverer Integration

Portal Version: 9.0.2.0.1
RDBMS Versjion: 9.0.1.3
OS/Vers. Where Portal is Installed:: Suse 7 SLES
Error Number(s)::
Oracle Portal and Discoverer Integration
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44846)
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at oracle.portal.provider.v2.PortletException.<init>(Unknown Source)
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at oracle.webdb.provider.v2.utils.soap.SOAPProcessor.processInternal(Unknown Source)
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Any ideas?
Thanks

Hi there,
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This was the course of action Oracle support advised us about nine months ago. Of course they may have released a further patch to Disco that does 1 & 2 in one go, but we regularly carry out steps 1 and 2 on servers we use and we can use the Disco portlets successfully.
Hope this helps
Mark Rittman
[email protected]

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It would appear that you do not have integrity between the fact and the product dimension.
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Eulapi error while creating EUL for APPS12

Dear Guru
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here is the error
=============================
$ORACLE_HOME/bin/eulapi \
-CREATE_EUL \
-APPS_MODE \
-CONNECT system/password@PROD \
-USER EUL_US \
-PASSWORD eul_us \
-DEFAULT_TABLESPACE discoverer \
-TEMPORARY_TABLESPACE temp1 \
-EUL_LANGUAGE US \
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OCIError
OCIError
Database Error - ORA-30041: Cannot grant quota on the tablespace
==============
thanks in advance
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Edited by: user11970641 on 18-Feb-2010 03:53

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I could find any Clue, Attaching the Log File
Log File :
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Property: [AdminUser] = true {boolean}
Property: [ProcessorArchitecture] = AMD64 {string}
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Running checks for package 'Windows Installer 3.1', phase BuildList
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Copying files to temporary directory "C:\Users\cvegesna\AppData\Local\Temp\VSDC0B0.tmp\"
Downloading files to "C:\Users\cvegesna\AppData\Local\Temp\VSDC0B0.tmp\"
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Installing using command 'C:\Users\cvegesna\AppData\Local\Temp\VSDC0B0.tmp\VSTOR30\vstor30.exe' and parameters ' /q:a /c:"install /q /l"'
Process exited with code 4097
Status of package 'Visual Studio Tools for the Office system 3.0 Runtime Service Pack 1' after install is 'InstallFailed'

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I have the same issue. I am also using the Keynote remote from my Iphone.

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Product Version : 9.00.1399.06
Install         : Successful
Log File        : C:\Program Files\Microsoft SQL Server\90\Setup Bootstrap\LOG\Files\SQLSetup0007_DT0315_SQLSupport_4.log
Machine         : DT0315
Product         : Microsoft SQL Server Native Client
Product Version : 9.00.5000.00
Install         : Successful
Log File        : C:\Program Files\Microsoft SQL Server\90\Setup Bootstrap\LOG\Files\SQLSetup0007_DT0315_SQLNCLI_3.log
Machine         : DT0315
Product         : Microsoft Office 2003 Web Components
Product Version : 11.0.6558.0
Install         : Successful
Log File        : C:\Program Files\Microsoft SQL Server\90\Setup Bootstrap\LOG\Files\SQLSetup0007_DT0315_OWC11_4.log
Machine         : DT0315
Product         : Microsoft VSS Writer for SQL Server 2012
Product Version : 11.0.2100.60
Install         : Successful
Log File        : C:\Program Files\Microsoft SQL Server\90\Setup Bootstrap\LOG\Files\SQLSetup0007_DT0315_SqlWriter_1.log
Machine         : DT0315
Product         : Microsoft SQL Server 2005 Backward compatibility
Product Version : 8.05.1054
Install         : Successful
Log File        : C:\Program Files\Microsoft SQL Server\90\Setup Bootstrap\LOG\Files\SQLSetup0007_DT0315_BackwardsCompat_4.log
Machine         : DT0315
Product         : Microsoft SQL Server Setup Support Files (English)
Product Version : 9.00.1399.06
Install         : Successful
Log File        : C:\Program Files\Microsoft SQL Server\90\Setup Bootstrap\LOG\Files\SQLSetup0007_DT0315_SQLSupport_5.log
Machine         : DT0315
Product         : Microsoft SQL Server Native Client
Product Version : 9.00.5000.00
Install         : Successful
Log File        : C:\Program Files\Microsoft SQL Server\90\Setup Bootstrap\LOG\Files\SQLSetup0007_DT0315_SQLNCLI_4.log
Machine         : DT0315
Product         : Microsoft Office 2003 Web Components
Product Version : 11.0.6558.0
Install         : Successful
Log File        : C:\Program Files\Microsoft SQL Server\90\Setup Bootstrap\LOG\Files\SQLSetup0007_DT0315_OWC11_5.log
Machine         : DT0315
Product         : Microsoft SQL Server 2005 Books Online (English)
Product Version : 9.00.1399.06
Install         : Successful
Log File        : C:\Program Files\Microsoft SQL Server\90\Setup Bootstrap\LOG\Files\SQLSetup0007_DT0315_BOL_1.log
Machine         : DT0315
Product         : Microsoft SQL Server 2005 Backward compatibility
Product Version : 8.05.1054
Install         : Successful
Log File        : C:\Program Files\Microsoft SQL Server\90\Setup Bootstrap\LOG\Files\SQLSetup0007_DT0315_BackwardsCompat_5.log
Machine         : DT0315
Product         : Integration Services
Error           : Failed to install and configure assemblies C:\Program Files\Microsoft SQL Server\90\DTS\Tasks\Microsoft.SqlServer.MSMQTask.dll in the COM+ catalog. Error: -2146233087
Error message: Unknown error 0x80131501
Error description: One or more of the components being installed are already registered as 32 bit components in the target application. You must install the 64 bit versions of the components being installed in a different COM+ application, or delete the existing
32 bit versions of the components being installed from the target COM+ application prior to attempting install of the 64 bit versions. COM+ applications cannot contain bit neutral components.
Machine         : DT0315
Product         : Microsoft SQL Server 2005 Integration Services (64-bit)
Product Version : 9.00.1399.06
Install         : Failed
Log File        : C:\Program Files\Microsoft SQL Server\90\Setup Bootstrap\LOG\Files\SQLSetup0007_DT0315_DTS.log
Last Action     : InstallFinalize
Error String    : Failed to install and configure assemblies C:\Program Files\Microsoft SQL Server\90\DTS\Tasks\Microsoft.SqlServer.MSMQTask.dll in the COM+ catalog. Error: -2146233087
Error message: Unknown error 0x80131501
Error description: One or more of the components being installed are already registered as 32 bit components in the target application. You must install the 64 bit versions of the components being installed in a different COM+ application, or delete the existing
32 bit versions of the components being installed from the target COM+ application prior to attempting install of the 64 bit versions. COM+ applications cannot contain bit neutral components.
Error Number    : 29549
Machine         : DT0315
Product         : SQLXML4
Product Version : 9.00.1399.06
Install         : Successful
Log File        : C:\Program Files\Microsoft SQL Server\90\Setup Bootstrap\LOG\Files\SQLSetup0007_DT0315_SQLXML4_1.log
Machine         : DT0315
Product         : Microsoft SQL Server 2005 (64-bit)
Product Version : 9.00.1399.06
Install         : Successful
Log File        : C:\Program Files\Microsoft SQL Server\90\Setup Bootstrap\LOG\Files\SQLSetup0007_DT0315_SQL.log
Machine         : DT0315
Product         : SQLXML4
Product Version : 9.00.1399.06
Install         : Successful
Log File        : C:\Program Files\Microsoft SQL Server\90\Setup Bootstrap\LOG\Files\SQLSetup0007_DT0315_SQLXML4_2.log
Machine         : DT0315
Product         : Microsoft SQL Server 2005 Analysis Services (64-bit)
Product Version : 9.00.1399.06
Install         : Successful
Log File        : C:\Program Files\Microsoft SQL Server\90\Setup Bootstrap\LOG\Files\SQLSetup0007_DT0315_AS.log
Machine         : DT0315
Product         : Microsoft SQL Server 2005 Notification Services (64-bit)
Product Version : 9.00.1399.06
Install         : Successful
Log File        : C:\Program Files\Microsoft SQL Server\90\Setup Bootstrap\LOG\Files\SQLSetup0007_DT0315_NS.log
Machine         : DT0315
Product         : Microsoft SQL Server 2005 Tools (64-bit)
Product Version : 9.00.1399.06
Install         : Successful
Log File        : C:\Program Files\Microsoft SQL Server\90\Setup Bootstrap\LOG\Files\SQLSetup0007_DT0315_Tools.log
SQL Server Setup failed. For more information, review the Setup log file in %ProgramFiles%\Microsoft SQL Server\90\Setup Bootstrap\LOG\Summary.txt.

Problems with derivative/integral in PD control for real time.

Hello to you all,
I'm using Labview 8.5 to build a PD controller.
i'm using a PXI 8187 with FPGA 7831-R.
I run a simulation of the controller both in matlab and laview using the simulation module and it worked fine.
the next step is to build the PD controller in a new VI and use it control the signals from the FPGA,but when i try to use others form of derivatives,including the mathematic's backward derivative, but the system is not stable any more.
does anyone know what can i use to replace the derivative block that will work the same?

hello again,
i've posted the VI's in here:
http://hl2.bgu.ac.il/users/www/18850/labview/
the system should be settling around the set point 0:
the file:1st working pd is the same as in the picture: the system is stable, but i cant use a simulation to when using a RT controller.
the file 1st not working Pd is the same as the working one,but instead of using the simulation continous derivative and integral i used other whioch doesnt seem to work.
the file PD2 represent how the PD controller should look standalone- location X as input and current I as output.
the file 2nd not working vi uses the PD2.vi to simulate the system unsuccesfully.
you can change the running time of each vi to see how the 1st working one is stable around 0 and how the other ones are not.
I hope that would help you guys to figure out what is wrong and let me continue my gradguation project.
thanks again.
elad.

SQL Server Denali is required to install integration services

Hi,
I've just installed a named instance of SQL Server 2014. I'm trying to create the SSISDB catalog and getting the following error.
"SQL Server Denali is required to install integration services"
I have 3 instances on my machine.
1. Default instance SQL Server 2012 SP1
2. Named instance SQL Server 2008 SP1
3. Named instance SQL Server 2014 SP1
The SSISDB creation works on the 2012 instance.

Microsoft SQL Server 2014 Setup Discovery Report
Product
Instance
Instance ID
Feature
Language
Edition
Version
Clustered
Configured
Microsoft SQL Server 2014
SQL2014
MSSQL12.SQL2014
Database Engine Services
1033
Developer Edition
12.0.2000.8
No
Yes
Microsoft SQL Server 2014
SQL2014
MSSQL12.SQL2014
SQL Server Replication
1033
Developer Edition
12.0.2000.8
No
Yes
Microsoft SQL Server 2014
SQL2014
MSAS12.SQL2014
Analysis Services
1033
Developer Edition
12.0.2000.8
No
Yes
Microsoft SQL Server 2014
Management Tools - Basic
1033
Developer Edition
12.0.2000.8
No
Yes
Microsoft SQL Server 2014
Management Tools - Complete
1033
Developer Edition
12.0.2000.8
No
Yes
Microsoft SQL Server 2014
Client Tools Connectivity
1033
Developer Edition
12.0.2000.8
No
Yes
Microsoft SQL Server 2014
Client Tools Backwards Compatibility
1033
Developer Edition
12.0.2000.8
No
Yes
Microsoft SQL Server 2014
Client Tools SDK
1033
Developer Edition
12.0.2000.8
No
Yes
Microsoft SQL Server 2014
Integration Services
1033
Developer Edition
12.0.2000.8
No
Yes
Microsoft SQL Server 2014
LocalDB
1033
Express Edition
12.0.2000.8
No
Yes
Microsoft SQL Server 2012
MSSQLSERVER
MSSQL11.MSSQLSERVER
Database Engine Services
1033
Developer Edition
11.0.2100.60
No
Yes
Microsoft SQL Server 2012
MSSQLSERVER
MSSQL11.MSSQLSERVER
SQL Server Replication
1033
Developer Edition
11.0.2100.60
No
Yes
Microsoft SQL Server 2012
MSSQLSERVER
MSAS11.MSSQLSERVER
Analysis Services
1033
Developer Edition
11.0.2100.60
No
Yes
Microsoft SQL Server 2012
Management Tools - Basic
1033
Developer Edition
11.0.2100.60
No
Yes
Microsoft SQL Server 2012
Management Tools - Complete
1033
Developer Edition
11.0.2100.60
No
Yes
Microsoft SQL Server 2012
Client Tools Connectivity
1033
Developer Edition
11.0.2100.60
No
Yes
Microsoft SQL Server 2012
Client Tools Backwards Compatibility
1033
Developer Edition
11.0.2100.60
No
Yes
Microsoft SQL Server 2012
Client Tools SDK
1033
Developer Edition
11.0.2100.60
No
Yes
Microsoft SQL Server 2012
BIDS
1033
Developer Edition
11.0.2100.60
No
Yes
Microsoft SQL Server 2012
Integration Services
1033
Developer Edition
11.0.2100.60
No
Yes
Microsoft SQL Server 2012
LocalDB
1033
Express Edition
11.1.3000.0
No
Yes
Microsoft SQL Server 2008
SQL2008
MSSQL10.SQL2008
Database Engine Services
1033
Enterprise Edition
10.0.1600.22
No
Yes
Microsoft SQL Server 2008
SQL2008
MSSQL10.SQL2008
SQL Server Replication
1033
Enterprise Edition
10.0.1600.22
No
Yes

[svn:fx-4.0.0] 13729: Updating the EULA files in the SDK zip.

Revision: 13729
Revision: 13729
Author:   [email protected]
Date:     2010-01-22 17:23:33 -0800 (Fri, 22 Jan 2010)
Log Message:
Updating the EULA files in the SDK zip.
QE notes: None.
Doc notes: None.
Bugs: SDK-24585
Reviewed By:
Tests run:
Is noteworthy for integration: No
Ticket Links:
    http://bugs.adobe.com/jira/browse/SDK-24585
Modified Paths:
    flex/sdk/branches/4.0.0/build.xml
    flex/sdk/branches/4.0.0/collateral/en_US/license-adobesdk.htm
Added Paths:
    flex/sdk/branches/4.0.0/collateral/fr_FR/license-adobesdk-fr.htm
Removed Paths:
    flex/sdk/branches/4.0.0/collateral/fr_FR/Adobe_Flex_Software_Development_Kit-fr_FR-200908 07_1505.doc
    flex/sdk/branches/4.0.0/collateral/fr_FR/license_Adobe_Flex_Software_Development_Kit-fr_F R-20090807_1505.html

Flickr integration in the new Photos App in OS X 10.10.3

I had been looking forward to trying out the new Photos app with the newest version of OS X.
Now it has arrived and it is alright, for what it does, but it's not going to be taking over my photo processing.
The one bit where I feel seriously let down is the Flickr integration - in this area it seems to be a big step backwards from iPhoto.
Has anyone else though been struggling to understand how to access Flickr properly through it?
I can upload photos, but I cannot open my Flickr albums to look in there, as I could with iPhoto. Or is there a way of doing this that I am missing?
The upshot of this is that I cannot use my Flickr feed as a screensaver on my mac at the moment... There are hundreds of curated photos that make me happy, of my friends, family, nice memories, trips that I have taken, in an album on Flickr for this very purpose.
Previously I simply set my mac at work, and my one at home, to use the Flickr album as the source for my screensaver, but now that the Flickr album doesn't appear for me in iPhoto, this is not possible.
Has anyone else run across this? Has anyone else come up with a solution?
(Also did anyone else's inner cynic connect this and the screen asking them to sign up for the iCloud photos solution, and if so, did you silence that cynic or give it free reign?)
-crossposted from the Flickr support forums at the suggestion of users there

Okay, the answer for the time-being seems to be to keep using iPhoto for this task.
iPhoto is still in my applications folder (but for how long).
So, I can use iPhoto for managing my Flickr and Photos for everything else.
That's the theory anyway and I'm going to give it a go until and unless a better option presents itself, please do let me know if you have one.

Backward Euler Integration

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