Multiple Instances of SubVi-Type

Hi there !
I'm new at LV so please excuse me, in the case my question is about
something trivial.
My Problem is to create several Instances of the same SubVI-Type.
In the process control app. I have to implement, a large flow schematic
has to be displayed/monitored. Because of the complexity of the
schemnatic, the user shall be able to open SubVIs to get detailed
information to some components, e.g, latch valve status, number of
switching cycles etc. The type of the SubVI is the same for a couple of
components in the schematic. To avoid creating n equal SubVI-Files I
found it could be better to create an instance of the SubVI type at
runtime.
Can anyone help me, or are there any examples at NI ?
Thanks for your help
Hans J"org

Thank you both for the help. I used the Open VI reference and Call by Reference and created a stricly typed VI reference to call the subvi dynamically. Attached is a screenshot of the block diagram. The link below guided me in created the stricly typed VI reference required by the "reference" input of the Call by Reference function.
http://zone.ni.com/reference/en-XX/help/371361H-01/lvhowto/create_strict_type_vi_ref/
Attachments:
OpenMultipleClones.gif ‏4 KB

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at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:618)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:963)
at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1600)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'casemetadata' defined in class path resource [conf/casemanagement.xml]: Error setting property values; nested exception is org.springframework.beans.PropertyBatchUpdateException; nested PropertyAccessExceptions (1) are:
PropertyAccessException 1: org.springframework.beans.MethodInvocationException: Property 'flags' threw exception; nested exception is java.lang.NullPointerException
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1279)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1010)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:472)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
at java.security.AccessController.doPrivileged(Native Method)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:269)
... 46 more
Caused by: org.springframework.beans.PropertyBatchUpdateException; nested PropertyAccessExceptions (1) are:
PropertyAccessException 1: org.springframework.beans.MethodInvocationException: Property 'flags' threw exception; nested exception is java.lang.NullPointerException
at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:104)
at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:59)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1276)
... 57 more
May 13, 2013 12:50:24 AM org.apache.catalina.core.StandardContext startInternal
SEVERE: Error listenerStart
May 13, 2013 12:50:24 AM org.apache.catalina.core.StandardContext startInternal
SEVERE: Context [dndirector] startup failed due to previous errors
May 13, 2013 12:50:25 AM org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc
SEVERE: The web application [dndirector] registered the JDBC driver [oracle.jdbc.OracleDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
May 13, 2013 12:50:25 AM org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc
SEVERE: The web application [dndirector] registered the JDBC driver [org.postgresql.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
May 13, 2013 12:50:25 AM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
SEVERE: The web application [dndirector] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@623e20db]) and a value of type [java.lang.Class] (value [class oracle.sql.TypeDescriptorFactory]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
May 13, 2013 12:50:25 AM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
SEVERE: The web application [dndirector] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@da1c402]) and a value of type [java.lang.Class] (value [class oracle.sql.AnyDataFactory]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
May 13, 2013 12:50:25 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /u100/app/PCEXDB/orpcexmt/oracle/OEDQ2/apache-tomcat-7.0.29/webapps/docs
May 13, 2013 12:50:25 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /u100/app/PCEXDB/orpcexmt/oracle/OEDQ2/apache-tomcat-7.0.29/webapps/examples
May 13, 2013 12:50:25 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /u100/app/PCEXDB/orpcexmt/oracle/OEDQ2/apache-tomcat-7.0.29/webapps/manager
May 13, 2013 12:50:25 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /u100/app/PCEXDB/orpcexmt/oracle/OEDQ2/apache-tomcat-7.0.29/webapps/ROOT
May 13, 2013 12:50:25 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /u100/app/PCEXDB/orpcexmt/oracle/OEDQ2/apache-tomcat-7.0.29/webapps/host-manager
May 13, 2013 12:50:25 AM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-8081"]
May 13, 2013 12:50:25 AM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-bio-8010"]
May 13, 2013 12:50:25 AM org.apache.catalina.startup.Catalina start
INFO: Server startup in 16882 ms
Can someone please tell me what is going wrong here?

Hi,
Multiple instances of EDQ on a single server is technically possible provided the installer takes care to avoid port conflicts. It is not the case that there is a single port used by an EDQ server, for example.
For various reasons, it is not officially supported; attempting to diagnose issues on custom installations on Tomcat is especially difficult and we do not provide documentation on this. In general, the requirement usually comes up for Dev/Test instances (as there is no performance advantage of using multiple instances on a single server), where we would recommend the use of virtualization where this is a requirement.
Regards,
Mike

Multiple instances of the same VI running in parallel

Hi,
I have a timestamping subVI that looks at a counter channel and applies timestamps. I want to create multiple instances of this subVI (8 to be exact) and have them all run in parallel (looking at 8 different channels). Someone gave me the following advice:
>>
Also, in case you want to call multiple instances of the same SubVI, and you want these multiple instances to execute in parallel, you will have to set the SubVI to execute in reentrant mode. Do this by opening the SubVI and going to "Edit >> VI Properties >> Execution" and enable "Reentrant execution".
<<
I've tried this but only my second instance (I started simple with only 2 instances) seems to monitor its channel and pass data along to the queue. I've included my code below, I have two signal simulators which simulate singles coming in on channels 2 and 3. I'm using a PCQI 6602 counter/timer card.
Any help would be greatly appreciated, thanks in advance,
Chris
Attachments:
LabView App (June 28, 2005).zip ‏158 KB

good news! Your reentrant VI is working and all three instances are running (as execution highlighting clearly shows). The problem is going to be an error that is occuring but you don't see because you are ignoring the error clusters internally in the timer. It looks like at one point it was set to quit if an error occurred. That still needs to be there.
Always hookup error clusters...
Mike...
Certified Professional Instructor
Certified LabVIEW Architect
LabVIEW Champion
"... after all, He's not a tame lion..."
Be thinking ahead and mark your dance card for NI Week 2015 now: TS 6139 - Object Oriented First Steps

How to open multiple instance of Adobe Live Cycle Designer ES 8.2

Hi,
How do I open multiple instance of Adobe Live Cycle Designer ES 8.2. I have two forms and I need to compare them. Another situation is I want to correct/copy the contents by keeping the old and new one under the view simultaneously. I also want to take advantage of multiple monitors
The MDI style windows with Ctl+Tab to switch between documents is not helping me in the context explained above
adobe Acrobat work on multi instance if I type acrobat.exe /n;
but if I type "C:\Program Files\Adobe\Acrobat 9.0\Designer 8.2\FormDesigner.exe" /n;, its just opening the existing livecycle instance
please help

I don't think you can run two instances.
But you can stretch the main application window across both monitors and tile the two documents inside the main window.

Open excel files in multiple instances

When ever i open the excel files it opens as different windows of the same instance . Is there any way to open in multiple instances of excel ... I saw some answes in forums which says about about unchecking 'Ignore other application that use DDE'
.. once i set that the excel file doesnot open again giving an error "there was a problem sending the command" ....
Could some one help me on this .. this is pretty urgent for me ... i am using this in my vb.net project with process.start(file) ...
i dont think i want to create an excel application and open the file in the code as i may not be able to release the com objects properly in my fuinctionality ....

Try this one:
1. To begin, we go to the registry. Click START, and in the RUN command line type REGEDIT and hit ENTER or click OK. This will start the registry editor.
2. Navigate to the following key: HKEY_CLASSES_ROOT\Excel.Sheet.8\Shell\Open\Command
3. Double click on the (Default) instance over to the right. Right now this probably says something like:
If you have Office 2007 installed:
C:\Program Files\Microsoft Office\Office12\EXCEL.EXE /dde
Or, if you have Office 2010 installed
C:\Program Files\Microsoft Office\Office14\EXCEL.EXE /dde
Change this value to:
C:\Program Files\Microsoft Office\Office12\EXCEL.EXE /e "%1"
for Office 2007 and for Office 2010 change it to:
C:\Program Files\Microsoft Office\Office14\EXCEL.EXE /e "%1"
4. Navigate to the following key: HKEY_CLASSES_ROOT\Excel.Sheet.12\Shell\Open\Command
Again, double click the (Default) entry to the right and change
C:\Program Files\Microsoft Office\Office12\EXCEL.EXE /dde
to
C:\Program Files\Microsoft Office\Office12\EXCEL.EXE /e "%1"
When you exit the registry this should be all you need to do. Each time you double click on your Excel shortcut or type excel.exe in the command line a new instance of Excel is launched with the default spreadsheet.
Quote from:
http://blogs.technet.com/b/the_microsoft_excel_support_team_blog/archive/2011/09/06/opening-excel-in-multiple-instances.aspx
Max Meng
TechNet Community Support

Creating multiple instances of a class in LabVIEW object-oriented programming

How do you create multiple instances of a class in a loop? Or am I thinking about this all wrong?
For instance, I read in a file containing this information:
Person Name #1
Person Age #1
Hobby #1
Hobby #2
Hobby #3
Person Name #2
Person Age #2
Hobby #1
Hobby #2
Hobby #3
Person Name #3
Person Age #3
Hobby #1
Hobby #2
Hobby #3
If I define a Person class with name, age, and an array of strings (for the hobbies), how can I create several new Person instances in a loop while reading through the text file?
FYI, new to LabVIEW OOP but familiar with Java OOP. Thank you!

First of all, let's get your terminology correct. You are not creating multiple instances of a class. You are creating Objects of the class.
Use autoindexing to create an array of your class type.
There are only two ways to tell somebody thanks: Kudos and Marked Solutions
Unofficial Forum Rules and Guidelines

XI-Multiple instance scenario -File & SQL sender communication channels

Hi
i have a basic question regarding how file sender communication channel ( where we poll for a particular file pattern either using file/ftp types in a particular subfolder ) or a sql sender communication channel - ( selecting records from a sql source ) would work in a scenario with two active XI instances and j2EE file and sql adapter services running on both of the J2EE servers ?
1. How would the file polling from both J2EE servers - avoid a conflict looking for the same file pattern ? Is there any inbuilt mechanism from SAP to make multiple instances work with the file polling - without a confict ?
2. Simlar question for SQL sender type communication channel ?
If SAP does have a mechanism to handle multiple instance scenarios for file and sql sender adapter based communication channels, is there a link/document on this ?

Hi Karthik,
Please see my comments.
I am just wondering aloud - what will happen if we use a select for update clause in the sql sender adapter communication channel -
Gouri: Yes you can use select + update. In fact that is the right way.
will this ensure that polling from one J2EE instance will lock the selected records so that the second instance does not select the same set of records from the sql server ? Or should we not use a select for update and use a simple select statement ?
Gouri: Yes. SQL DB will ensure that same data will not be picked by another node. As I mentioned earlier use serilizable option from advanced mode.
-Gouri

Multiple Instances created for a web service in OWSM

Hi,
I have created a gateway and added some services to the gateway. When i am invoking the webservice through the gateway, multiple instances of the service are created in bpel console.
I have done everything as per the OWSM guide.
Urgent Issue.
Thanx in advance.

Dear Nikhil,
Please check that item is relevant for Text item,
Check the copy control settings between sales order type and delivery type in VTLA transaction.
I hope it will help you,
Regards,
Murali.

Audigy NX Multiple Instances in Device Mana

Since I first installed the Audigy NX, I've had a problem with Device Manager having multiple instances of both the SB and the Composite USB device. It seems like it's associated with the SBUSBdll.Dll at XP Boottime that re-enumerates the Sound Card. Not a major issue, but everytime it gets redetected it uses the default values (Sample Rates, Volume mixer settings).
Has anyone else seen this type of behavior ? I'm tempted to take the SBUSBdll.Dll out of Startup and see if I can keep just the "Single" Audigy NX in my Device Table.
Usually, I'll have two instances, an acti've and a "Phantom". Last time I checked, I had 4 instances of each in Device Manager. All System/Drivers are updated and NX Firmware is latest available.
Thanks -

stewartbourke wrote:
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ps.
google.com/img/dot_clear.gif" width=2><B><FONT color=#ffffff></B>
I have a problem loading ASIO drivers with my Audigy 2 NX / USB sound card.My PC is a HP Pavillion ZD8000 laptop, with 52Mb RAM and a 60GB dri've,
Windows XP home.
I am trying to select the Creative ASIO driver from within the Cubase LE VSTi multitrack setup dialogue.
I went into the VST/device setup and sure enough there was the creative
ASIO driver in the drop-down. However, when I try to select it it says
that the driver could not be loaded. I have run the update mechanism
from the Creative site and it has updated all my drivers, so I have the
latest ones installed.
Does anybody know if there is anything else I need to setup to allow me
select the Creative ASIO driver?
My version of Cubase LE is .07...
Thanks.
Is ASIO on NX 'locked' to 6-bit/48 kHz or is there also 24-bit/96 kHz resolution available?
Try to set driver bit-depth to 6 and samplerate to 48 kHz on Cubase.
Have you tried USB-ASIO drivers? There is a demo available.
Another driver(s) to try out are Asio4All and Asio2KS. These are WDM/KS 'wrappers' but should work with low latencies too (as required on recording).
.jtpMessage Edited by jutapa on 09-06-2005 06:3 AM

Multiple Instances of SubVi-Type

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