ViInstallHandler for event callbacks issue

My app register callbacks for two events IO_COMPLETION and SERVICE_REQ (two viInstallHandler calls one after other). This perfectly works with the old version GPIB version 1. and VISA 2.1 but do not work with VISA 2.6.1 and GPIB driver NI488 2.2.1.
However, if my application only registers for IO_COMPLETION, the call back function is triggered after viWrite for command "*IDN?\n".
What needs to be done if both of the events to trigger the callbacks in a session?

Please verify which NI-488 version you have - do you mean that you have NI-488.2 2.1? (I don't think that 2.2.1 exists.) If my guess is correct, you should upgrade to NI-488.2 2.2 at www.ni.com/downloads. There were some fixes related specifically to this bug.
While you're at it, I suggest upgrading to NI-VISA 3.1. There have been a handful of GPIB-related bug fixes in that upgrade as well.
Dan Mondrik
National Instruments

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Sevice Contract - Listener for Events Queue Issue

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The Listener for Events Queue in our Production environment ran very long, It took about 3+ hrs to complete the program. Is there any thing specific that we can check as part of RCA.
Further there were 'library cache lock' found ... how this can impact the performance and how library cache lock works.
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Hi Team,
i used the following code for recognizing the key events.
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+" alert(window.event.keyCode) ; } ";
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Register Event Callback issue

I have registered an event called MoveComplete, where the VI lets the user know that the motor's move has been completed, obviously. My issue is that the event is inside a for loop. The motor moves incrementally, and I need the event called after each move so that something can be done before it moves again. I am having timing issues because the MoveRelative method returns after the motor starts moving, instead of after it finishes moving. I tried changing bWait to false but that simply messes up the motor's movement. I tried unregistering for the event, so that in each loop it re-registers and unregisters, but that doesn't work. Is there a way I can call the event multiple times in a for loop?

It's hard to understand what you're trying to do from your written description. Can you attach your code? What motor driver are you using? What library generates the events?

Is there any event callback for "pre/post-register/unregister" object?

Dear all,
We noticed that there are rich set of event callback provided by TopLink, including "pre/post-Refresh/Build/Clone/Merge". However, we cannot found any callback method for "pre/post-register/unregister" events. They will be very useful, if we to manage the internal status of register/unregister to indicate whether it is still under the control of TopLink.
Thanks and regards,
William

William,
Those specific events do not exist. The postClone event is called after an object is registered. This is frequently used to copy non-persistent values from the cached original into the working copy.
There is also the ability to customize the clone/copy policy used by TopLink in creating the working copies in the UnitOfWork.
http://download-west.oracle.com/otn_hosted_doc/toplink/1013/DP4/_html/descfg028.htm#sthref3950
Doug

Wait for event step without callback

Hi All,
In 4.6C I have the following problem:
We have a workflow that has a fork with 2 branches, with 1 necessary for continuing the fork.
One of the branches has a dynamic parallel processing step on a multiline container element, where each parallel process is a wait for event step. For example if the multiline element has 5 records, than there will be 5 parallel wait for event steps on this branch, and if all 5 are completed, then the workflow continues after the fork and the other branch should be logically deleted (normal behaviour).
The other branch has a single wait for event step, if this event is received, the other branch's parallel wait for event steps should be deleted to continue.
The problem is that when the event for the latter single wait step is received, the step gets completed, but sometimes the parallel wait for event steps on the other branch are not deleted and the wokflow does not continue. The completed wait for event step shows that the callback is not completed yet.
I tried to fix these steps in SWPC, but in 4.6C it does not work for wait for event steps w/o callback. There's an OSS note for higher releases where this is fixed to enable SWPC for wait for events, so I copied it to a custom program and use that right now.
First question is why does the system not continue these workflow's when the event is received? My guess is that the tRFC calls get stuck and when the tRFC job reprocesses the entries, it does not do it correctly. For example lately we had a tablespace problem that caused some tRFC calls to go into error. The waiting steps in the instances were completed w/o callback. I reprocessed the tRFC entries, which created new entries in the Workflow logs showing that the events are received, but the workflows still hang.
Second question, it takes a lot of time to logically delete those parallel wait for event steps. When the event for the single wait for event is received and the workflow continues w/o problem, it may take tens of minutes from the receipt of the event until the parallel wait for event steps get deleted and the WF continues. Why does it take so long?
Thanks,
KK

Hi,
Regarding the delay and the hundreds of thousand SWW_CONT updates... the main workflow on one branch does a dynamic parallel processing of a subworkflow using a multiline container element that can have 50 or even 100 elements. So we can have 50 or even 100 subworkflows waiting for their event to be triggered.
The main workflow container contains many elements, some multiline with long structures, so in one instance the main flow had 8000 entries in SWW_CONT (each field of a structure is a separate record in SWW_CONT).
Now if I do the math, when this workflow loads all the container elements of the main flow into the 100 waiting subflows before deleting them and continuing along the other branch, it creates 100 times 8000 entries in SWW_CONT, that is 800.000 inserts!
And this was ONE single workflow.. Imagine when we have just a few hundred and they all want to continue at the same time...
Anyway, the beauty comes now....
I created a simple main flow with a single multiline import parameter USERS of object USER. It has a fork with 2 branches, 1 enough to continue. One branch is a user decision with 1 option: Continue. The other branch has a subworkflow and it does dynamic parallel processing with the multiline element USERS.
The subworkflow has one single import element USER of object USER. It has only one step, a wait for event, waiting for the DELETED event of the USER object.
That's the scenario.
When I start the main flow, filling the USERS parameter with two user objects, on the first branch it starts the two parallel waiting subflows with one user each, and I get the decision step on the other branch. If I check the subflow containers this time, they only have one USER object each.
Now if I complete the user decision, the workflow continues, logically deletes the subflows and completes. If I check the subflow containers after this, they all include the USERS multile container element with all the USERS I started the main flow with!
So this time it was a different main flow, different subflow, different events. I guess there can't be any custom code doing this, unless there's some generic workflow user exit somewhere.
Feel free to test this yourselves if you have 4.6C, quite easy scenario. Guess I'll try in ECC 6.0 too just to see...
And I'll report to SAP for sure.
Regards,
Krisztian Klausz

[svn:fx-trunk] 5819: Fix asdoc issue for event description getting copied over to the class definition .

Revision: 5819
Author: [email protected]
Date: 2009-03-31 13:15:14 -0700 (Tue, 31 Mar 2009)
Log Message:
Fix asdoc issue for event description getting copied over to the class definition.
QE Notes: None.
Doc Notes: None.
tests: checkintests, asdoc tests
Modified Paths:
flex/sdk/trunk/modules/compiler/src/java/flex2/compiler/asdoc/TopLevelClassesGenerator.ja va

THank you , Nancy. Appreciate the input.
So instead of this:
<a class="brand" href="index.html"><img src="../img/logo-ca.png"alt="Consumers Advocate Review"> </a>
Would it be something like this?:
<a class="brand" href="index.html"><img src="http://ConsumersAdvocate/img/logo-ca.png"alt="Consumers Advocate Review"> </a>
And if I do that, is there a way to cope with that locally so that DW can still display the images?
jeff

Event callback with active x in labview

I have an active x written by Aanderaa Instruments (makes
weather and hydrology sensors), it contain various methods and events to get
the next line of records from a sensory scanning unit. The connection is
through the COM1, so far i have wired it up only using the methods to get next
record level, but then I have found that sometimes it does not get the complete
record from the COM port. So to solve that I have to use an event in the active
x to check for new record available. So what I want to do is send the event
(when complete record available) to VI that uses the get next record method to
pick up the data from the COM1 port and then send the data back to the main VI
for processing, plotting and writing.
My problem is that when I connect the output from the GetNextRecord method to a
indicator that I then wire on the connector pane to be an output from this
VI get an error that there is a wire function conflict. I have tried to
explain a bit better in the attached pdf file with diagrams.
The reason why I want to export the data back in the main VI is because it runs
continuously collecting data every 2 min and I plot them on a graph and write
them to a file so it will no work to have all that done in the event callback
VI that will only run ever 2 min, then it will reset the graph the whole time
and I want continuous data plotting for 10 days of historic data records. I
also have a few other sensors that come in through a connector board that are
written o the same file.
hope somebody can give me some hints
Attachments:
labview question.pdf ‏721 KB

Hello!
I checked the PDF file with snippets of your code and it looks alright, no issues or comments regarding that from my side. However it is really difficult for us to troubleshoot when we don’t have the ActiveX control available and even though we had access to the control it would still be quite tricky to find the cause of the problems you are experiencing since we don’t have the hardware and so on.
I found one link only that mentioned wire conflicts when talking about COM objects and ActiveX and you can find it here:
http://digital.ni.com/public.nsf/websearch/0CED780C5D5EDCD5862569D9005AE1FA?OpenDocument
Regards,
Jimmie A.
Applications Engineer, National Instruments
Regards,
Jimmie Adolph
Systems Engineer Manager, National Instruments Northern Region
Bring Me The Horizon - Sempiternal

Executable and Register event callbacks

Hi,
I have been running into an issue regarding the building of an executable that has register event callbacks (specifically Test Stand Callbacks). The VI that is responsible for setting up the event registration is an asynchronous VI. During development everything works but during deployment of an executable the Callback is either not running or capturing the event from the Test Stand engine (I am looking for the end of execution event). The setup is not reporting an error, and the pathing to the callback VIs is correct. Any Ideas on this?
Does the Teststand engine not post a endexecution callback when running from a executable labview environment?
Thanks,
Andrew

akonecki wrote:
Hi,
I have been running into an issue regarding the building of an executable that has register event callbacks (specifically Test Stand Callbacks). The VI that is responsible for setting up the event registration is an asynchronous VI. During development everything works but during deployment of an executable the Callback is either not running or capturing the event from the Test Stand engine (I am looking for the end of execution event). The setup is not reporting an error, and the pathing to the callback VIs is correct. Any Ideas on this?
Does the Teststand engine not post a endexecution callback when running from a executable labview environment?
Thanks,
Andrew
The TestStand engine is singular regardless of what is hosting the components so it will post the appropriate callbacks. Try some tracing and see what flags up in your callback VI.

The description for Event ID 0 from source VSTTExecution cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer.

Hi,
Can any one help me on the below issue ?
while executing automated test case in test center it is showing as test case is in progress, then i navigated to virtual machine (where the test agent is online), there Internet
explore has opened automatically and my test case execution started, but with in a seconds IE has closed . However, in test center, test case status is showing as in
progress, after 2 or 3 min some of test cases getting passed and some are failed.
Here my question is in lab center-->virtual machine, IE has opened automatically and navigated the 2 or 3 links and with in seconds IE has getting closed. Why IE is getting closed without completing execution?
Error Message :
The description for Event ID 0 from source VSTTExecution cannot be found. Either the component that raises this event is not installed on your local computer or the
installation is corrupted. You can install or repair the component on the local computer.
If the event originated on another computer, the display information had to be saved with the event.
The following information was included with the event:
(mtm.exe, PID 5240, Thread 4) FileAggregatorSessionInfo: Error occurred while deleting temporary directoryException: System.IO.DirectoryNotFoundException: Could not find a part of the path
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.Directory.Delete(String fullPath, String userPath, Boolean recursive, Boolean checkHost)
at Microsoft.VisualStudio.TestTools.Execution.Aggregation.FileAggregator.FileAggregatorSessionInfo.DeleteTemporaryDirectory(String temporaryDirectory)
the message resource is present but the message is not found in the string/message table
Thanks
Suresh
Suresh

Hi,
Can any one help me on the below issue ?
while executing automated test case in test center it is showing as test case is in progress, then i navigated to virtual machine (where the test agent is online), there Internet
explore has opened automatically and my test case execution started, but with in a seconds IE has closed . However, in test center, test case status is showing as in
progress, after 2 or 3 min some of test cases getting passed and some are failed.
Here my question is in lab center-->virtual machine, IE has opened automatically and navigated the 2 or 3 links and with in seconds IE has getting closed. Why IE is getting closed without completing execution?
Error Message :
The description for Event ID 0
from source VSTTExecution cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer.
If the event originated on another computer, the display information had to be saved with the event.
The following information was included with the event:
(mtm.exe, PID 5240, Thread 4) FileAggregatorSessionInfo: Error occurred while deleting temporary directoryException: System.IO.DirectoryNotFoundException:
Could not find a part of the path
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.Directory.Delete(String fullPath, String userPath, Boolean recursive, Boolean checkHost)
at Microsoft.VisualStudio.TestTools.Execution.Aggregation.FileAggregator.FileAggregatorSessionInfo.DeleteTemporaryDirectory(String
temporaryDirectory)
the message resource is present but the message is not found in the string/message table
We are using VS 2013 (premium) and IE 10.0, scripts have been created on the same versions. It is working fine on
developers command prompt but the same tests are getting failed in lab center test agent machine
test agent log:
QTAgentService.exe, AgentService: calling AgentObject.RunEndFileCopyComplete
QTAgentService.exe, AgentProcessManager.WaitForDataCollectionAgentProcessToStart: waiting for agents to start.
QTAgentService.exe, AgentProcessManager.WaitForDataCollectionAgentProcessToStart: Agents started.
QTAgentService.exe, AgentProcessManager.PerformActionIgnoringExceptions: Successfully called 'Cleanup' on the test agent
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Process chain Error: This AND process is not waiting for event RSPROCESS

Hi All,
I am facing an error in the process chain in PRD.
Error message: This AND process is not waiting for event RSPROCESS.
We had a process chain which had two sub chains which run parallel and below of this we had AND process type and below of the AND process we had 4 more jobs.
Once the two subchains got successfully loaded, the and process should turn to green and further 4 jobs should start.
It is a daily load , it worked fine from past years,but suddenly the AND processtype is getting failed.The thing is in the two subchains if one got completed, the AND process process is not waiting for 2nd subchain to get completed.The AND process is turning to RED (status: cancelled) . I tried to repeat the AND process once after above 2 subchains loaded, but it didnt worked.
And i removed the existing AND process and created a new one and placed it in same place and activated and schedules again.but still it is getting failed with same error.
Thanks in advance,
Sai Chand.S

Hi,
If you did any transports related to that metachain we face similar kind of issues.
not only the AND process , we need to remove all the process before executing the AND process and create it again.
It helps you, you said your in production So you should take the proper approvals and do it.
Regards,
Yerrabelli.

How can I remove default alarm for events in iCal on devices ios?

Whenever I add an event to my iCal calendar in Mounain Lion it will automatically add one default alert only on my iphone and ipad. These default alarms are not displayed on my macbook or icloud.com
Default alarms are disabled in macbook, icloud.com, and my ios devices.
How can I remove default alarm for events in iCal on devices ios?
Thanks and sorry for my english.
MacBook Pro, Mac OS X 10.8

OK, so I have had this issue for the past several months. I think it all started when I upgraded to ML from SL and migrated my calendars and contacts to iCloud. That was a couple months ago. But now I am running 10.8.2, and about two weeks ago I upgraded my iOS devices to 6.0.1.
I don't seem to be having any issues with events that I create now, but all those old events that were migrated to iCloud a couple months ago, many of those sound alerts on the iOS devices even though there was no alert defined when the event was originally created. I have always had alerts off by default both in iCal and on the iOS devices.
So here's the question: is there a way to go through and disable all these spurious event alerts? I've been disabling them as the event reminders come up, but it's irritating. It would be nice if there was a way to turn them off all in one shot somehow.

Problem with register event callback in use of instrument control

now, i use the register event callback to register a value change of a boolean control on the front panel, and wire the cluster's ref of the instrument control parameters to the user parameter input, then create the callback vi. In the callback vi, i select the pump-control subvi, and pass the user parameter to the subvi. The problem is that, when i press the boolean control, the instrument (here is pump) can act, but immediately, the code crashes.
I use labview 8.6
Attachments:
callback vi.png ‏8 KB
register event callback.png ‏8 KB

You would wire the event registration wire that comes out of the Register for Events node into an event structure. You will need to right click on the event structure and check off "Show Dynamic Event Terminals" and it into that. Then you can create a new Event Case that uses the dynamic event. You can place your subVI in that event in whatever way you want. (Just drop the subVI in or do a Call by Reference there, or whatever.) Look in the Example Finder for "Dynamically Register for Events.vi".

Checklist for Exchange Certificate issues

Checklist for Exchange Certificate issues
1.
Why certificate is important for Exchange and What are Certificates used for
Exchange is now using certificates for more than just web, POP3, or IMAP. In addition to
securing web services, it has also incorporated Transport Layer Security (TLS) for session based authentication and encryption.
Certificates are used for several things on Exchange Server. Most customers also use certificates
on more than one Exchange server. In general, the fewer certificates you have, the easier certificate management becomes.
IIS (OWA, ECP, EWS, EAS, OA, Autodiscover, OAB, UM)
POP/IMAP
SMTP
2.
Common symptoms for
certificate issue
Here we can see three different types of the certificate warning, mainly from the Outlook
side.
a.
Certificate mismatch issue
b.
Certificate trust issue
c.
Certificate expiration issue
3.
Checklists
In this section, checklists will be provided according to the three different scenarios:
Certificate Mismatch Issue
[Analysis]:
This issue mainly occurs because the URL of the web services Outlook tries
to connect does not match the host name in the certificate.
[Checklist]:
Firstly make sure how many host name in your certificate the certificate. Run “Get-ExchangeCertificate | select certificatedomain”.
Secondly, check the web services URLs which Outlook are trying to connect to. Run “Test Email AutoConfiguration”
In this scenario, you need to check the host name for the following services:
Autodiscover
EWS
OAB
ECP
UM
If any of the urls above does not match the one in the certificate, refer to the following article to change
it via EMS:
http://support.microsoft.com/kb/940726
1.
Do not forget to restart the IIS service after applying the changes above.
2. Make sure a valid certificate is enabled on the IIS service.
Certificate Trust Issue
[Analysis]:
For the self-signed and PKI-based (Enterprise)
certificates, they are not automatically trusted by the client computer or mobile device, you must make sure that you import the certificate into the trusted root certificate store on client computers and devices. On the other hand, Third-party or commercial
certificates do not have this problem. Most commercial CA certificates are already trusted because the certificate already resides in the trusted root certificate store. Because the issuer is trusted, the certificate is also trusted. Using third-party certificates
greatly simplifies deployment.
[Checklist]:
If it’s an Enterprise CA certificate, manually install the root certificate to the “Trusted Root Certification Authorities” folder:
If it is a 3<sup>rd</sup>-party certificate, first remove and reinstall the certificate. Check whether the Windows Certificate Store on the local
client is corrupted. If it still does not work, please contact the third-party CA support to verify the certificate.
Certificate Expiration Issue
[Checklist]:
When a certificate is about to expired, we just need to renew it by referring the following article:
Renew an Exchange Certificate
http://technet.microsoft.com/en-us/library/ee332322(v=exchg.141).aspx
To avoid any conflictions, it’s recommended to remove the expired certificate from the certificate store.
[How to set a reminder to alert the administrator when a certificate is about to expired]:
It’s easy to fix the certificate expire issue. But it should be more important to set a reminder before the
certificate expiration. Or there can be a large user impacts.
Generally, the Event ID “^(24|25)$” will appear in Application log when a certificate is about to expire.
If it’s not quite visible, we can refer to the following solution:
http://blogs.technet.com/b/nexthop/archive/2011/11/18/certificate-expiration-alerting.aspx
OWA certificate revoked issue
[Analysis]:
IE
includes support for server certificate revocation which verifies that an issuing
CA has not revoked a server certificate. This feature checks for CryptoAPI revocation when certificate extensions
are present. If the URL for the revocation information is unresponsive, IE cancels the connection.
[Solution or workaround]:
1. Contact CA provider and check whether the questioned certificate is in the Revoked List.
2. If not, check whether the certificate has a private key.
3. Remove the old certificate and import the new one.
Workaround:
IE Internet Options -> Advanced tab -> Clear the "Check for server certificate revocation"
checkbox.
4.
More References
Digital Certificates and SSL
http://technet.microsoft.com/en-us/library/dd351044(v=exchg.150).aspx
More on Exchange 2007 and certificates - with real world scenario
http://blogs.technet.com/b/exchange/archive/2007/07/02/3403301.aspx

(Reported previous post with link to SIS package to moderator)
This is not the correct SIS package for the N73. The package shown is for S60 3.2 devices, but the N73 is not S60 3.2, I believe it is S60 3.0.
Most features may work with this SIS, but if you experience strange problems, try using the S60 3.0 version.
But there are no significant difference between 2.5.3 and 2.5.5 with regard to attachments. The only changes were with localization (languages).
At this point, try 2.7.0 which is out now:
http://businesssoftware.nokia.com/mail_for_exchange_downloads.php
Make sure to pick the right phone on the drop down list. It does matter! There are 4 different packages. This list makes sure you get the right one.
I have seen some issues with attachments not completing that seem to be carrier dependent. You can test this my using Wifi (if possible).
Message Edited by m4e_team_k on 28-Sep-2008 12:25 AM

How to place event callback components and "main-VI" components in the same Front Panel?

What I'm trying to accomplish:
Place a .NET component, which generates events, and other standard LabVIEW components in the same Front Panel. The standard LabVIEW components should be updated when events are being generated in the .NET component.
How I tried to solve it:
Problem:
The event callback code must reside in a separate event callback VI. In order to "pass the event up" to the main VI I tried to use a global variable. The interrupt does occur:
but I was hoping that the string indicator would be updated when the event occurred, but it wasn't.
Questions:
What's the best way to solve what I try to accomplish? If I want to solve the problem on the picture above, how would I do it (it may not be the best solution, but I'm still curious what's wrong)? Please feel free to be over-explicit when replying as I am novice LabVIEW programmer. Thanks in advance for any help.

There are two bundle functions for creating clusters. The function simply called Bundle operates almost exactly like the Build Array function I showed. The type of the output cluster depends on whatever you wire in as inputs. You don't have to supply a specific type parameter.
The function called Bundle by Name takes in a specific type of cluster in the top input and allows you to fill in the values of that specific type of cluster. To create the specific type of cluster you want, you need to create a cluster of string references. Here's how to do that:
Go to the Front panel and drop down an empty cluster shell.
Go to the Refnum palette and drop down a Generic Control Refnum. Now here's a cool trick to turn that generic refnum into a string-specific refnum (a so-called strictly-typed refnum). Grab a string from the controls palette and drag it into the Generic Control Refnum. Once you drop it, you'll see the refnum change its icon to display a string picture.
Make copies of this string refnum (as many as you need) and add it to the cluster shell.
Now, if you're making specific types of clusters to work with, now is the absolute best time to learn about typedefs if you haven't already. It will save you hours and hours (if not days) of development time in the future. Trust me!
Jarrod S.
National Instruments

Why iCal cancel of event edits issue is still not fixed after over 2 years?

Why iCal "cancel of event edits" issue is still not fixed after over 2 years?
I have been in the software engineering industry for over 14 years, but I have never seen a large corporation being so slow at addressing major issues like these.
What would it take for Apple to start working on this issue?

Yup. This is fully ridiculous that you can't cancel your updates once you start. I love the tool but this is on pretty significant issue.
Sometimes I accidentally move a mtg or make some edit while viewing and you can't back you!!
If you feel the same way, you should post a note here:
http://www.apple.com/feedback/ical.html
Message was edited by: SteveMc10123

ViInstallHandler for event callbacks issue

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