Read / Write a MAX .daq configuration file?

How can I read or write a .daq configuration file programmatically ?(channel names, range, units, etc.)
And/Or:
Does anyone know the internal structure of a .daq file? Is it documented?
Thanks.
MichelC.

Michel,
The .daq file, where all the MAX information gets stored, is in binary format. You will have a hard time decoding it LabVIEW.
However, you can use some DAQ VIs to get this information.
Under Data Acquisition>>Calibration and Configuration>>DAQ Channel Utilities palette, use the following VIs:
Get DAQ Channel Name
Get Channel Information
Get Scale Information
Zvezdana S.
National Instruments

Similar Messages

Finding exception with the read-write-backing-map-scheme configuration.

Finding exception with the <read-write-backing-map-scheme> configuration, that is setup against a simple database cache store implementation. The class SimpleCacheEventStoreImpl implements CacheStore interface.
Exception in thread "main" java.lang.UnsupportedOperationException: configureCache: read-write-backing-map-scheme
 at com.tangosol.net.DefaultConfigurableCacheFactory.configureCache(DefaultConfigurableCacheFactory.java:995)
 at com.tangosol.net.DefaultConfigurableCacheFactory.ensureCache(DefaultConfigurableCacheFactory.java:277)
 at com.tangosol.net.CacheFactory.getCache(CacheFactory.java:689)
 at com.tangosol.net.CacheFactory.getCache(CacheFactory.java:667)
 at Sample.SimpleEventStoreConsumer.main(SimpleEventStoreConsumer.java:10)
The cache store is interfaced to the program SimpleEventStoreConsumer(where I have a put and get operation) through the following cache configuration descriptor. On running the SimpleEventStoreConsumer, the exception happens on trying to get the Named cache from the cache factory
<cache-config>
 <caching-scheme-mapping>
 <cache-mapping>
 <cache-name>Evt*</cache-name>
 <scheme-name>SampleDatabaseScheme</scheme-name>
 </cache-mapping>
 </caching-scheme-mapping>
 <caching-schemes>
 <read-write-backing-map-scheme>
 <scheme-name>SampleDatabaseScheme</scheme-name>
 <internal-cache-scheme>
 <local-scheme>
 <scheme-ref>SampleMemoryScheme</scheme-ref>
 </local-scheme>
 </internal-cache-scheme>
 <cachestore-scheme>
 <class-scheme>
 <class-name>com.emc.srm.cachestore.SimpleCacheEventStoreImpl</class-name>
 <init-params>
 <init-param>
 <param-type>java.lang.String</param-type>
 <param-value>{cache-name}</param-value>
 </init-param>
 </init-params>
 </class-scheme>
 </cachestore-scheme>
 </read-write-backing-map-scheme>
 <local-scheme>
 <scheme-name>SampleMemoryScheme</scheme-name>
 </local-scheme>
 </caching-schemes>
</cache-config>

you are missing <backing-map-scheme>. Do like following:
<caching-schemes>
 <distributed-scheme>
 <scheme-name>distributed-scheme</scheme-name>
 <service-name>DistributedQueryCache</service-name>
 <backing-map-scheme>
 <read-write-backing-map-scheme>
 <scheme-ref>rw-bm</scheme-ref>
 </read-write-backing-map-scheme>
 </backing-map-scheme>
<autostart>true</autostart>
 </distributed-scheme>
 <read-write-backing-map-scheme>
 <scheme-name>rw-bm</scheme-name>
<internal-cache-scheme>
 <local-scheme>
 </local-scheme>
 </internal-cache-scheme>
 </read-write-backing-map-scheme>
</caching-schemes>

How can read/write FORMSWEB.CFG & DEFAULT.ENV file entries programatically?

Environment: Forms 9i (Web)
As : Oracle 9i As
How can read/write FORMSWEB.CFG & DEFAULT.ENV file entries programatically?

I guess you cannot. There is an enhancement request to get the name of the config-section as a GET_APPLICATION_PROPERTY.
What you could do is add extra parameter(s) to your form and pass the necessary formsweb.cfg parameters in this form parameter. See Get formsweb.cfg section name in Forms for more info and an example.

Read/write operation on SAP IDOC file

Hi All,
We are developing an application, which will be used for registering and processing of travel data for a client.One of itu2019s functionality is to get the data from external system in different format(like CSV, Excel, Fixed Flat file, XML, main frame file, DBF and SAP IDOC) and import it into Oracle databases.
One of the design considerations for it, is to read these files and convert it into predefined XML format
and then import these data from XML to oracle database.
Currently we are analyzing the requirement and trying to find out all the Open Source JAVA API which can convert these different format files to predefined XML format, using some mapping file.
We have found out Open Source JAVA API for all the file format, except SAP IDOC files.
Any Java API to read/write the SAP IDOC file, Please advise
Regards,
Madhu
Edited by: Madhu Sudhan on Feb 17, 2009 12:06 PM

Hi All,
We are developing an application, which will be used for registering and processing of travel data for a client.One of itu2019s functionality is to get the data from external system in different format(like CSV, Excel, Fixed Flat file, XML, main frame file, DBF and SAP IDOC) and import it into Oracle databases.
One of the design considerations for it, is to read these files and convert it into predefined XML format
and then import these data from XML to oracle database.
Currently we are analyzing the requirement and trying to find out all the Open Source JAVA API which can convert these different format files to predefined XML format, using some mapping file.
We have found out Open Source JAVA API for all the file format, except SAP IDOC files.
Any Java API to read/write the SAP IDOC file, Please advise
Regards,
Madhu
Edited by: Madhu Sudhan on Feb 17, 2009 12:06 PM

Read/Write folder, but newly added files Read Only?

Our company uses a server to store a shared logo database and work files, and to transfer data from one user to another. At this point, we do not have any need for Read Only on this server; everything should be Read/Write. That's how it was set up initially, and the permissions were propagated. About a year ago, our old XServe crashed and was replaced with a new XServe. I believe our trouble started there, and has since migrated to our Snow Leopard Server: we have several folders where, if an employee uploads a folder and/or file, those files become Read Only. We have to go to the Get Info for that folder and fix the permissions each time. This has to happen up to 20 or so times a day, and I'm the only one who has server access to fix it; it also seems to be affecting more and more folders. I'm not in IT, so this is a little beyond me, but I've been working with IT on this (I'm Mac, he's PC). Can anyone offer a suggestion as to how else we can go about permanently setting the permission to Read/Write on all folders? Server Admin hasn't been successful.
Thanks!

Hi
+"We have to go to the Get Info for that folder and fix the permissions each time"+
This might be fine for OSX Client but it's not the way to do things on OSX Server. Consider stopping doing this because ultimately you're adding to the problems you're seeing. To reset permissions launch terminal on the server and issue this command:
sudo chmod -R -N /pathtoshare
Depending on how much data there is as well as the structure (nested folders within nested folders etc) this may take some time. If you're sharing the Volume (hard drive), don't. Share a folder instead. If you have only one share point which is the name of the drive. Create a folder with the same name and move all the data into that folder. Un-share the drive and Re-share the folder.
Once the command has ran, repeat for any other share points you may have. When finished launch Server Admin because this is what you should be using. Select the Server name. Click on the Sharing icon. Select Share Points. Select the share point you're interested in and add desired users or groups into the ACL window. Select Read/Write. Don't fiddle with the POSIX permissions. Cick Save. Click on the small gear wheel and select Propagate Permissions. By default ACL will be ticked. You don't tick anything else. Click save/apply and let it do its stuff. Repeat for any other share points you may have.
Tony

How read/write matlab style WAV sound file?

The supplied LabVIEW WAV read/write VIs require fixed sampling rates (like 8000, 11025, 22050, 44100), and use integer data (so the waveforms take on large +/- integer values).
I need to read/write WAV files that are like those used in Matlab with its wavread and wavwrite functions. Those can use ANY sample rate, and the waveforms have decimal values between -1 and +1.
Could someone suggest either how to directly write these standard WAV files with an existing VI, or how to write my own VI to do this?
Thanks in advance.

That's a great help! Thanks. I have made the changes to the supplied NI VIs so that any rate can be used. The new read/write VIs are attached and seem to work ok.
Best,
F
Attachments:
Snd_Read_Wave_File.vi ‏128 KB
Snd_Write_Wave_File.vi ‏110 KB

Control where a LabVIEW executable write it's Settings Configuration file

Is there any way to control which directory a LabVIEW executable writes it's configuration settings file to? I am using version 7.1.

I believe the INI file must be in the same directory as the executable. You can use the keys found in the LabVIEW.ini file and they will apply to your executable without any special programming on your part. That being said, you can always create a custom settings file or files anywhere you like to store configuration information specific to your application.
If we could specify some other path for the executable settings file, it would probably hurt more than help in the long run. The same directory as the executable is the only one whose existance you can be sure of..... or of whose existance you can be sure.
Dan Press
PrimeTest Corp.
www.primetest.com

Read&write binary float var to file

Hello everybody.
Oracle 11G R 2 on Linux.
My problem.
I have some millions of records (270.000.000) with numeric data that can be store in binary float variables. Making the database work with so big table convert the database in a slow and hard to manage, because copys and so. The advantage is that this data only need be read, not modified or add news record.
So, Im thinking to store in the file system, with UTL_FILE package, one or more binary files and access data through a algorithm to calculate the position of data inside the file. The data can be stored in binary float vars.
My question.
How I can add this binary data in binary format to the stream of write and read from the stream of data when I write to disk and when I read from disk.
Any idea welcome.
Thanks in advanced & regards everybody.

I think that you dont understand the problem.
The problem is easy, I have a table with 270.000.000 records. When you try to do anything with this table the database go slow, for your understand, when you ask a simple and easy query, by example a select count(*) from, it take more than 200 seconds to answer.
ok, but the data is all numeric that can be stored in binary float var and moreover its position in a sequential file can be calculate.
So if I make a sequential file, or more than one, where I can save this data I kick this problem to the database.
And what I´m asking for help is if anybody know a way, using UTL_FILE, to include in the stream to save and read this data from disk (UTL_FILE.put_raw and UTL_FILE.get_raw) in binary float format, nothing more than this I want.
You are correct that I 'dont understand the problem' because you yourself do not know what the 'problem' is.
All you said is 'try to do anything with this table the database go slow' but you don't tell us what that 'anything' is. You give only ONE example.
A COUNT(*) in Oracle could possibly use an index but you don't tell us if you have any indexes. You don't even provide the table DDL so we can see the structure.
Your description gives the impression that all you have is a table with ONE column defined as BINARY FLOAT and that column is defined as NOT NULL. If that is the case you can create an index and Oracle can use it to get the COUNT(*) results.
That ONE query is just about the only thing that might be faster with the data in a file. Since each value is four bytes and they can't be null then all you need to know is the length of the file. Then you can divide by four to find out how many entries there are.
For anything else your 'file' solution will need to read the ENTIRE FILE to do anything other than access values as if the file was a large array of BINARY FLOAT four byte values.
And for that, as I previously suggested, just forget Oracle and write a simple Java program that uses RandomAccessFile. Then for any given 'array' value just multiply by four, set the FilePointer value to that result and read your 4 bytes.

Read & Write all folders and files

How do I allow another account user read & write privileges to all my files and folders? I have set the other user as an administrator however each file and folder that i've copied into their documents folder still need to be changed individually (through the Get Info window) in order to save changes or add new files to them. This is very time consuming, so is there an easier way?

Not exactly what you are looking for but maybe some useful information:
http://www.computerworld.com.au/article/197922/useraccounts_file_sharing_leopard_whatnew?pp=1&fp=2&fpid=2

Why can't I open read/write rules file?

I have followed the Cookbook XML tutorial exactly as prescribed, even down to using all the examples from the 'Completed' folder, but when I try to perform any procedure such as generating a EDD or reading an XML instance (the ColorDoc.xml example) I get the following in the log file:
Could not open the read/write rules file
(App\ChapterReadWriteRules)
Make sure you have read access to the file and that
the file is not already in use.
Using XP and Framemaker 7.
Its a real blocker this proble. Have tries unsetting the XP Read-only folder property on all the folders in the heirarchy but XP won't let me do that. Very grateful if anyone could help me over this problem.

What is the path you mentioned the structapps.fm file for read/write rules
It should be full file path for read/write rules(including extension of file). Otherwise there is possibility of throwing the error you mentioned.
Would it be possible to paste your XML application defined in your structapps.fm file??
Thanks
Basav

ATTN Java Gurus: udf.policy - Unable to Grant Read,Write to Specific File

NOTE: A correct answer to this question will receive the rarely used OTN 25pt Platinum Star ★ *
Essbase 9.3.1
Using a Java CDF that reads and writes to a file
I'm trying to grant permission to a specific file in the file system by granting permission in the udf.policy file.
When I uncomment the line permission java.security.AllPermission; the CDF works fine and interacts with the file correctly. This is just to prove that the CDF works, I need to tighten this up to a single file. I stop and start the app after each edit.(I've also tried bouncing the Essbase server too)
When I use the following, I get an exception, shown below. Nothing of consequence is being written to the app or essbase logs
grant {
permission java.io.FilePermission "C:/test/essbase/CalcProfile.db", "write, read";
};java.security.AccessControlException: access denied (java.io.FilePermission C:\esstest\Server\PlugIns\Essbase read)
 at java.security.AccessControlContext.checkPermission(AccessControlContext.java:323)
 at java.security.AccessController.checkPermission(AccessController.java:546)
 at java.lang.SecurityManager.checkPermission(SecurityManager.java:532)
 at java.lang.SecurityManager.checkRead(SecurityManager.java:871)
 at com.hyperion.essbase.calculator.ESecurityManager.checkRead(ESecurityManager.java:80)
 at java.io.File.exists(File.java:731)
 at org.sqlite.Conn.open(Conn.java:98)
 at org.sqlite.Conn.<init>(Conn.java:57)
 at org.sqlite.JDBC.createConnection(JDBC.java:77)
 at org.sqlite.JDBC.connect(JDBC.java:64)
 at java.sql.DriverManager.getConnection(DriverManager.java:582)
 at java.sql.DriverManager.getConnection(DriverManager.java:207)
 at com.accelatis.essbase.calcprofile.cdf.CalcComment.calcComment(CalcComment.java:16)
>
I've tried creating the policy using PolicyTool, same result. However, I have no idea what or if I should put in the "CodeBase" field.
Has anyone had success creating read & write permissions to a single file using the udf.policy file? What is the magic syntax?
Regards,
Robb Salzmann
* right after the platinum star award is created

Hi Robb,
Never heard of the OTN 25pt Platinum Star award... It sounds appetizing, but I know I won't get it since I've got no Java experience. :)
I was just gonna ask if you've thought about posting the same question on one of the Java forums?
https://forums.oracle.com/forums/category.jspa?categoryID=285
Cheers,
Mehmet

Help Needed, problem reading a configuration file in XML form

Hello,
I am using NetBeans 6.5.1 with Apache Tomcat 6.0.18.
I am trying to develop a web application and in my source files I have a thread that loops every second and reads the contents of a configuration file which is in XML form using java.util.Properties.
As soon as I call props.loadFromXML(new FileInputStream(file)); I get several exceptions that I don't know what they mean nor I know how to resolve them.
I would apreciate any help you guys can provide.
Here is what I get in NetBeans:_
Apr 30, 2009 8:56:53 PM com.sun.xml.ws.transport.http.servlet.WSServletDelegate destroy
INFO: WSSERVLET15: JAX-WS servlet destroyed
Apr 30, 2009 8:56:53 PM com.sun.xml.ws.transport.http.servlet.WSServletContextListener contextDestroyed
INFO: WSSERVLET13: JAX-WS context listener destroyed
Apr 30, 2009 8:56:53 PM org.apache.catalina.loader.WebappClassLoader findResourceInternal
INFO: Illegal access: this web application instance has been stopped already. Could not load META-INF/services/javax.xml.parsers.DocumentBuilderFactory. The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact.
Apr 30, 2009 8:56:53 PM org.apache.catalina.loader.WebappClassLoader loadClass
INFO: Illegal access: this web application instance has been stopped already. Could not load com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderFactoryImpl. The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact.
java.lang.IllegalStateException
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1273)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233)
at javax.xml.parsers.FactoryFinder.getProviderClass(FactoryFinder.java:111)
at javax.xml.parsers.FactoryFinder.newInstance(FactoryFinder.java:146)
at javax.xml.parsers.FactoryFinder.find(FactoryFinder.java:233)
at javax.xml.parsers.DocumentBuilderFactory.newInstance(DocumentBuilderFactory.java:123)
at java.util.XMLUtils.getLoadingDoc(XMLUtils.java:75)
at java.util.XMLUtils.load(XMLUtils.java:57)
at java.util.Properties.loadFromXML(Properties.java:852)
And following the above I get:_
Apr 30, 2009 8:56:53 PM org.apache.catalina.loader.WebappClassLoader loadClass
INFO: Illegal access: this web application instance has been stopped already. Could not load com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderFactoryImpl. The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact.
java.lang.IllegalStateException
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1273)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233)
at javax.xml.parsers.FactoryFinder.getProviderClass(FactoryFinder.java:111)
at javax.xml.parsers.FactoryFinder.newInstance(FactoryFinder.java:146)
at javax.xml.parsers.FactoryFinder.find(FactoryFinder.java:233)
at javax.xml.parsers.DocumentBuilderFactory.newInstance(DocumentBuilderFactory.java:123)
at java.util.XMLUtils.getLoadingDoc(XMLUtils.java:75)
at java.util.XMLUtils.load(XMLUtils.java:57)
at java.util.Properties.loadFromXML(Properties.java:852)
Thanks in advanced.

kimskams wrote:
Very Sorry Problem Remains... I checked Scanner on a Smaller file (to give u fast feedback) but I think the spaces in Small file were normal.. that is why it worked..
In fact I can feel some word on the blank line (hidden words).. its cursor who evidence their presence so Its not working..
Its a big program which is accessing a lexical resource so I think what I copied was Ok..
If u still have some solutions then please tell me otherwise I have to remove these blank lines manually for the time being but its not solution.
I m trying alsoI don't think anyone can give you an answer: people here don't know how your file looks like. Obviously those lines (when the Scanner instance stops reading) are not just empty lines.

Auto DAQ configuration

Can I make Labview Executable to auto configure MAX Analog Input Channels without user configuration. i.e. If I make a stand alone application which has five analog input channels, if I want to use the stand alone application on other computer(which has NIDAQ instaleed), is it possible that Labview6.1 stand alone application generated analog input cofiguration automatically!!!
Thanks,
Kishor

Check out this knowledgebase for the steps of porting the DAQ configuration to another computer.
How Do I Port a DAQ Configuration File With an Executable?
http://digital.ni.com/public.nsf/websearch/CB83B101E19EF83086256A3E0054206C?OpenDocument
Todd D.
NI Applications Engineer

How to modify the contents of a configuration file using j2me

Hi,
I'm developing a Application in j2me wherein i need to overwrite the existing contents of the configuration file(settings.cfg) with the value's that i have entered thru the front end. I was able to open and read the contents of the configuration file as follow's
InputStream is = getClass().getResourceAsStream("/settings.cfg");
Now, i need to remove the existing and updte it with the new content, how do i do it.. Kindly please help me out..
Thanks

Didn't you hear me the first time?
http://forum.java.sun.com/thread.jspa?threadID=701360&messageID=4068435#4068435

Automotive Diagnostic Command Set & kwp2000 Read/Write Memory By Address

I used NI Automotive Diagnostic Command Set 1.0 Read/Write EEPEOM By Address of ECU base VW TP2.0 KWP2000 diagnostic protocol . I used NI example ReadWrite Memory.vi but not successful. I know must use below step.
Description
The usual procedure for getting a security access to the ECU is as follows:
Request a seed from the ECU using RequestSeed.vi with access mode = n.
From the seed, compute a key for the ECU on the host.
Send the key to the ECU using SendKey.vi with access mode = n + 1.
The security access is granted if the ECU validates the key sent. Otherwise, an error is returned.
Who has used NI Automotive Diagnostic Command Set 1.0 and know VW TP2.0 KWP2000 protocol. Please support some suggest and example VI.
Thanks

I modify NI example Read/Write Memory lool at attached files.
Now I know how to calculate the key and successful.But sometimes ok and sometimes no ok. The best luck is pass three error.
Attachments:
pho0.JPG ‏99 KB
ReadWrite ECU.vi ‏66 KB
seedaddkey.vi ‏12 KB

Read / Write a MAX .daq configuration file?

Similar Messages

Maybe you are looking for