TDMS root

Similar Questions

• Reading of sheet TDMS root - need help

  Hello

  I'm quite new to TDMS files. I have a sample file with 2 sheets in which a leaf is referred to as root worksheet and another datasheet (concept of the point of excel sheet). I have some information to read (Raw 5) of the first journal (root) in LabVIEW. I tried with PDM with LabVIEW libraries, but I could only read the data. I also tried with excel fuctions I could open this file in excel, but without success. , I have attached the sample here file.

  I would really appreciate if anyone of you could help me to read that particular line.

  Thanks in advance,

  Manu Mohan

  LipingZhao wrote:

  From your description, I don't know what data you want to read. You said "I have some information to read (Raw 5)", do you mean "line 5"? I used the Viewer files TDMS look at the attached file and the file is OK. Have you tried to use the TDMS files Viewer? Can you tell me what part of the data that you want to get the opinion of the viewer of TDMS files (for example, you can attached a screenshot to note)?

  Thank you for your information about "TDMS File Viewer". I wanted to read line 5. Sorry for typo's fault. I created a new VI that will do what I said.

• Name of the TDMS file for use in Diadem report

  I received a large number of TDMS files collected with Signal Express 2014 and all of these files are called voltage.tdms in several subfolders, when I opened a sample of these files in Diadem I see that they have unique names in the field title properties voltage.tdms and so I would like to use this in a report model that I created. What I failed to find it is an easy way to capture the value of this title and put it in my report model, there is a variable called ChnDataFileName name, but it gives me "voltage.tdms", I don't see any of these variables to extract the field title, anyone know how to access this field?

  Hi ADobson

  The easiest way is to drag & give up the property from the data of the report portal. Then you will get something like

  Title: @Data.Root.Properties ("title"). Value @.

  Hope that helps

  Winfried

• Start TDM importer Excel automation index

  I'm trying to create a macro in excel to import and format data from a .tdm file.

  The files to import sometimes exceed the limit of 1 M in Excel line, when that happens, so I want to generate two workbooks. One of these binders to be generated from a starting index of 1 and the other must be generated from a beginning index of 1048576. Right now I use the silent mode to give a hint of departure of 1 and then again run the importer and enter 1048576 manually to the second workbook.

  My question is: is it possible to set the index of departure via a macro?

  I looked at using the sendkey command to generate the key sequence "tab tab 1048576 enter" required, but excel cannot interrupt the object call command to do this.

  Thank you very much

  Alex

  Alex

  I did a fairly complex treatment with DIAdem.  Your request is not a big deal to do in tiara.

  For maximum flexibility, you can take the references to the chain. As shown below in oChan01.  This will allow you to manage a channel such as a table. The limits of this approach is the speed, built-in functions are faster that approach and should be used as much as possible.   The chnfind command is an examle that is much faster to find a specific value in a channel.

  OptionExplicit'Forces the declaration explicitly all variables in a script.

  Dim oChan01, i, GPB, dVal

  define the GPB = data. Root.ChannelGroups ("EXAMPLE")

  Set oChan01 = oGrp.Channels ("Time")

  for i = 1 oChan01.Size

  dVal = oChan01 (2)

  next

  Paul

• Several roots

  Hello

  I like to keep the name of a PDM file, it is its root, when I drag in another. In other words, I would like to know how to get more than one root in the data portal. I read this already but who was related to Excel and the problem has been dodged by doing something else.

  Problem: I feel that it's impossible... otherwise methods such as RootPropValGet do not know what to return in case there are at least two roots share the same property name with different values inside.

  If I can't do it, I wonder to store instead, in properties, the name of the TDMS file that each channel comes. That sounds more feasible.

  Could you if you please confirm my impression or help me understand this?

  Thank you.

  Near Hi,.

  The data portal DIAdem 2012 indeed can only contain a single root.  You can easily choose to have your root of the properties automatically inherited at the group level, that I recommend in this case.  Go to the BROWSER menu "settings > Options > NAVIGATOR ' and in this dialog under the section 'Loading behavior' in the field 'Level of heritage property DataFinder', select 'pass at the wrong level.  If you want to than this setting to persist, you must then save the Desktop.DDD file by selecting the menu NAVIGATOR "settings > Options > save under...". »

  Brad Turpin

  Tiara Product Support Engineer

  National Instruments

• Can I save a TDM file without its TDX data?

  I have hundreds of data files that have been sorted (by date).  In some cases, I want to analyze subsets of these data in specific groups.  I would like to save these groupings in a TOC file, but I don't want another copy of the data block.  However, I notice that if I record a TDM, it automatically records the TDX and I'm not sure that it is possible to save/open a TDM without its same name TDX file.  Someone else has a similar need and/or to know a method of data management that may be suitable for my needs?

  Thank you.

  Although there are technical ways such as Brad described it is built directly into the mechanism to implement your use case.

  What you can try to do (if possible) use datafinder to define your new file as a query and load the results of the query instead of a file of tdm.

  • Find a query that contains contains the strings that you want to load it:
    for example, channels where channel.name is channel.name root.creationdate or 'abc' and 'def' is...
  
  
  • Load the result of the query in the data portal
  
  
  • You can save these queries as tdq and those file that allows you to set your content of the resulting file/portal of the tdm

  The result is almost equal, because if you delete files tdm you assembled tdm file would be invalid and the query would return fewer channels.

• Error 6 TDMS Open to PDM

  Hello

  I have an application that uses the TDMS VI to generate a log file.

  The application ran successfully for 12 days. (Each errors and some settings - hourly - has been correctly written in my TDMS file).

  Then, the following error has occurred:

  Error 6 TDMS Open to TDMS - write data Subvi V1.5.vi MULTIMETER D2XX V1.2.vi->

  Possible reasons:

  LabVIEW: File generic i/o error.

  =========================

  NOR-488: IO abandoned operation.

  I join my VI who manage the TDMS files.

  The error seems to come from the "OPEN TDMS" VI. The corresponding TDMS file is actually at the location specified, and its content is OK (all the news expected are present). The file is called LogFile_0_1.TDMS.

  Depending on the size of PDM, the application automatically creates a new file. I tried to force to get a new PDM from the file (assuming that the current file has been altered or blocked). A new TDMS file was created (LogFile_0_2.TDMS), but only the first tab (root) was created. Then, the same 'error 6' was still there, exactly as before.

  Don't you think that this problem can come from Windows?

  Or is it my application? This is not optimal, it is that this "TDMS - write data Subvi V1.2.vi" is called on every second and the function "OPEN TDMS" is called unconditionally (even if no changes on the TDMS file are required).

  How to explain that this bug appears after about 12 days only?

  I'll also the LogFile_0_1.TDMS that I have converted to Excel and the LogFile_0_2.TDMS file that was not created correctly.

  Thanks in advance for your support.

  Michael

  My guess is that you forgot to close the PDM file and whenever your VI is called a reference is created.

  It could be that after a week has reached the maximum possible number of references, and you got the error.

  Kind regards

  Marco

• Use attributes TDMS in VBscript DIAdem

  Greetings,

  I wrote the data set such as TDMS attribtutes properties and I would now like to call these attributes as variables in VBscript DIAdem.  I searched that help still does not find the proper syntax to call a PDM attribute.

  Thank you!

  Hello Space_Fligh,

  This should help hopefully:

  I created a property called 'Test' on the level of the root (file property), and the value of the property is accessible through this variable: Data.Root.Properties ("Test"). Value

  I also have a property named "Test" on the level of the channel to a channel called 'Temp', and the value is accessible through this variable: Data.GetChannel("[1]/Temp"). Properties ("test"). Value

  -What helps your question?

• TDMS write to the auto folder causes the flicker of the cursor

  I joined a project (8.6 LV) showing this problem.  When writing to a TDMS file in a folder of automatic settlement, the cursor briefly becomes a hourglass.  This behavior is not seen when a folder is not monitored by LabVIEW project through AutoFill.

  Run the VI.

  Toggle "Auto" true and wait 10 seconds to see flicker.

  Toggle the 'automatic' to False and flicker settlement stops.

  -Jason

  Hi Kyle,.

  In the forum you referenced, issue of mvickerman on the flicker of the cursor centered around closing and rinsing of a file.  The real cause is that the file operations are conducted on a file that resides in the LabVIEW project folder was auto.  I started a new thread to document the question more directly where others see a similar problem (writing to a file and see a flicker of the cursor).

  If the flicker that bothers someone, during development, they can stop automatic settlement on the record with the data file or manually include the data at the root of the project file.  Despite what says the solution on this forum, the problem doesn't seem to be the data file being simply in the project, but in a case of automatic settlement.

  As I said there:

  «For the record, I always choose to use automatic settlement files.»  I built the demonstration project to prove to myself that automatic settlement of records caused the problem.  Like most, we build applications (exe) for the customers, and data files are not in the hierarchy of development.  Besides, the customer have usually the LabVIEW project open if they have LabVIEW at all.

  Thus, the problem with deployment. »

  Take care

  Jason

• TDMS replace specific fields with the new string data

  Hello

  Wonder if someone could advise a more easy, more clean solution or I may end up making a big mess on my diagram!

  I use DaqmxConfigureLogging.vi to write data in the .tdms and this file everything works. Unfortunately, this vi affects physical names such as Dev1/ai0 channel names in Journal of root and group of tdms files.

  I would like to read individual fields where they are written and replace them with the names of channel. The location of these channel names is fixed on the tdms file.  However, I noticed using file i/o functions, such as file open/close/set position could not work, because these files do not seem to recognize the .tdms file. And it is not all fields tdms functions you want the value of the positions on sheets of root/channel files tdms and read fields desired as string data.

  Any suggestions? I can miss something quite simple!

  crossrulz wrote:

  k waris wrote:

  "In fact, it uses some names you give the channels and groups.

  I use Dev1 / ai0:15 connect all 16 channels. Unfortunately if using 'name to assign' entry will not do the job in my case!

  Of course, it will be.  Use a loop FOR with DAQmx channel create to create each channel and give them a name.

  Just to clarify what I meant here...

  

• Find root password

  Upgrade to Mac OS Sierra and all my accounts now have Standard permissions, i.e. without administrator permissions.

  How I either upgrade my administrator account or find the password for Root?

  There is no root password. This is a disabled account. For good reasons.

  You can enable the root account, but that increases your risk of being hacked much, because the root is a known account that has unlimited privileges. Enabling root makes your Mac a rich target environment.

  But if that's how you want to live your life, Google "enable OS X root" and you will find several approaches.

• User root cannot be turned on/off

  Hello, I am an inexperienced user of OS X, and I started looking on the privileges of the user for a while, just in case, for safety. And when I learned that all root user, I started tinkering on my MacBook, unusual activities as not to wake from sleep, sometimes running the fans at full speed at idle, useless speed even download when no activity going on in front of my computer, may be subject to a person who has had access to my mac back earlier that activated the user root and back to my mac remotely from the back then.
  So I tried to disable the root user, but I couldn't turn it off the screen or the directory utility with the command terminal dsenableroot - d. It just says: failed to disable the root user. `

  I need help on this problem. Thank you

  .. .but I couldn't turn it off the screen of the utility directory

  What were the exact steps that you did and what stopped you from neutralizing him?

  If you couldn't turn it off, because the menu item to disable showing 'enable', then the root user is not enabled.

• iMac won't turn. Startup disk is full. TDM won't let me edit.

  iMac won't turn. Startup disk is full. TDM won't let me edit.

  My iMac turns off 10 seconds after the start to the top. I tried repair disk running, to no avail. What is happening is because my boot drive is full, off the 500 GB I partitioned in mac, 493,63 GB is taken up. I bought a thunderbolt cable to access the TOC on my mac book, and I have access to my files now. The problem is that I can only copy files. Authorities say I read and write permissions. When I start my host computer, it says "you can still open or copy the files on the disk, but you cannot save changes to the files on the disc. Back up the disk and reformat it as soon as you can. "I'm trying to copy all my files on this computer and remove what I don't want copies, then reinstall OSX on my iMac. The problem is that some files are native to all OSX, so it would prevent me from copying the files. For example, if I want to copy my applications folder, it stops to copy once it reached the app store, because it cannot copy that. It is a problem because when it comes to the library, there are small files in there that I don't know if I can copy, then it stops at the copy and I end up with half of my files and I don't know what I need and what I have.

  Everything you need to copy the disk, then start the iMac in recovery (command-R) mode. Wipe the drive and reinstall OS X from the recovery console.

• After you turn off the root of the directory utility user, I went back to the main screen and all other user accounts showed is no longer at the start, as they were before you enable the root user.  Help.  Please, I beg you.

  I have activated the user 'root '.  It was an attempt (for the sake of granddaughter age) to check its history since I am the administrator.  Realizing that this method was much more complicated than what I am capable of managing, I returned the utility program directory and disabled the user 'root '.  I thought that everything was ok, as I did not made anything while connected as user 'root '.  Instead, restart the computer, all users, including myself were no longer at the start.  The only point was a blank user name and password.  No picture.  No guest.  No user.  How to return those and I did something to cause this?

  Else you being logged in as root?

  Activation and deactivation, then root should not have caused that.

  Also, having allowed root is one of the ways you get a login screen showing only the name and the password.

  You should be able to type in your user name and password to connect.

  One time connected, check users & groups system prefs, Connection Options and make sure he's on the list of users. You will have to click on the padlock at the bottom to make changes.

• Glitch/Question of the root user

  All other encountered an error of password for the root user that uses a user admin instead account?

  Recently, I had to reinstall 10.11 on an iMac and went to create a startup disk. When I run sudo it asked for the root password (which is enabled) and kept saying "sorry, try again." I was sure I knew the password, but didn't so I reset the password of the root user. After the Reset Terminal still does not accept. I decided to user, my admin password and it worked.

  This is how it is supposed to behave or am I missing something? (Err is human but to REALLY screw up, run sudo)

  My Root user and the admin have the same password.