Embedded data logger gaps

Hi all,
it seems that the embedded data logger does not record gaps when the log trigger is triggered multiple times when recording on the same file.
Is mine a correct assumption? I tried viewing the excel export and the TDMS viewer output and there is no trace of the "missing" data.
If I try recording 10 minutes and strop the log for 2 minutes I get a solid file which shows 8 minutes of recording with no gaps. Does the TDMS format support gaps such that a custom TDMS exctraction tool can show the gaps (implying a limit on the TDMS viewer that ship with VeriStand 2011)?

The embedded data logger does not log gaps as you noticed. There are two possible approaches that can help you organize your data&colon;
1. Timestamp your file names. Whenever you want to enable logging again, set th Log File Command channel to 1 to open a new file instance. Then set the Log Status channel to 1 to start logging in the new file. This way every file has only contiguous data.
2. Log a Timestamp channel such as System Time in every channel group. Then your data becomes xy data, and you should be able to plot it as such in Excel.
Jarrod S.
National Instruments

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How to install "Compact FieldPoint Embedded Data Logger Example Program" on cfp2200

i finally managed to get max to see the devices of my cfp2200.
(i had to disable every unused networkadapter due to overlapping subnets)
now i want to deploy the example programm "Compact FieldPoint Embedded Data Logger Example Program"
http://zone.ni.com/devzone/cda/epd/p/id/3221
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now if i open the file cFPEmbeddedDataLogger.vi the run-button is cracked and by pressing it an errorlist opens.
the errors say stuff like:
target does not support this function/subvi
and
vi has been modified with a different applicationinstance
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i know that it is possible to get the programm to run on the cfp2200 even dough it is primaly designed for the cFP-2000, cFP-2010, cFP-2020, cFP-2100, cFP-2110,
cFP-2120.
big THANX already for you help !!!!!

Hi, thanks for your help=) I've manage to drag the file into my targeted controller. I am now doing the setting of the data logger program, but there's one thing I'm unsure of. May I know what does it mean by the cFP controller clock? http://zone.ni.com/devzone/cda/tut/p/id/3219 . Thanks. =)
Log On Startup
Start logging when the controller powers up.
Start Log Time
The time to start logging.
Stop Log Time
The time to stop logging.
Note: Make sure the clock is set correctly on the controller. The settings described above refer to the cFP controller clock.
Log Rate
The number of milliseconds to wait between each acquisition.
FP Drive For Data Files
The drive to store the log files in. The C: drive is the default for all cFP controllers. If you want to save to the removable CompactFlash drive on the cFP controller, select the D: drive.
Digital "Pause" Line
The Digital Input item to use as a "pause" button for data logging. Logging pauses when the signal is high. When the signal goes low again, a new file is created and logging continues if appropriate.
Note: Use only Digital Input items for the Digital "Pause" Line.
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Logging Session Tag
Is stamped on the spreadsheet that the data logger creates.

VeriStand 2013 Embedded Data Logger with cRIO 9024

I am using VeriStand 2013 with the Embedded Data Logger on a cRIO 9024. I have noticed that when I first deploy after a complete power cycle, the embedded logger works great - responding immediately to a change in the Log Trigger value. However, If I undeploy and then redeploy the project, the embedded data logger appear to casue issues in the communication between the target and the host. The first symptom of this is that the indicators on the workspace appear to begin to lag significantly. The also affect the response of the boolean control that I have for the log trigger which now will not actually turn off when pushed but will rather only respond many seconds or minutes later. When this happens, the log files are also much longer than the intended period.
This problem only gets worse with further undeploy and reploys. However, when I power cycle the cRIO, the net time i open the workspace everything is working great again with no delays.
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Hello Aaron_Smith,
Are you writing to a single file each time? If so then the issue could arise from the file size and the file needing to be loaded into memory each time your redeploy. Try to run the system so that it writes to different files. Also, what is the status of the memory and CPU usage of the device while the application is deployed? Please verify that you are not maxing out the processor or memory as this causes network issues that could result in behavior of this type. Also, would it be possible for you to post a simple example that exhibits the same issue? Please include all files that are necessary to run the system definition.
Wear
National Instruments
Product Support Engineer

Fieldpoint embedded data logger and remote panels license (5)

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Hi, thanks for your help=) I've manage to drag the file into my targeted controller. I am now doing the setting of the data logger program, but there's one thing I'm unsure of. May I know what does it mean by the cFP controller clock? http://zone.ni.com/devzone/cda/tut/p/id/3219 . Thanks. =)
Log On Startup
Start logging when the controller powers up.
Start Log Time
The time to start logging.
Stop Log Time
The time to stop logging.
Note: Make sure the clock is set correctly on the controller. The settings described above refer to the cFP controller clock.
Log Rate
The number of milliseconds to wait between each acquisition.
FP Drive For Data Files
The drive to store the log files in. The C: drive is the default for all cFP controllers. If you want to save to the removable CompactFlash drive on the cFP controller, select the D: drive.
Digital "Pause" Line
The Digital Input item to use as a "pause" button for data logging. Logging pauses when the signal is high. When the signal goes low again, a new file is created and logging continues if appropriate.
Note: Use only Digital Input items for the Digital "Pause" Line.
Tip: You can use DIP Switch 3 to block the current data from being logged. This switch works the same way as the Digital "Pause" line.
Logging Session Tag
Is stamped on the spreadsheet that the data logger creates.

How to Plot number and string in one row (data logger counter) ?

hi all i made data log quantity using Digital Counter via modbus to monitoring quantity and reject that has and Name Operator, Machine and Part Number.
i have problem about plot the number & string in one row, as shown on the picture below :
how to move that string on one row ? i attach my vi.
Thanks~
Attachments:
MODBUS LIB Counter.vi ‏39 KB

Duplicate and answered - http://forums.ni.com/t5/LabVIEW/How-to-Plot-number-and-string-in-one-row-data-logger-counter-via/m-p...

I purchased a Holux M-1200E Bluetooth GPS Data Logger. The device paired with my laptop just fine so I know it is working right. The device will not even show up on my iphone or ipad to pair via bluetooth. Is there a way to pair without jailbreaking???

I purchased a Holux M-1200E Bluetooth GPS Data Logger. The device paired with my laptop just fine so I know it is working right. The device will not even show up on my iphone or ipad to pair via bluetooth. Is there a way to pair without jailbreaking??? I haven't had any trouble to date pairing any devic with my iphone or ipad, this is ridiculous!!!! Is there a way to update my bluetooth settings on my iphone 4s to be able to have this device be recognized??? I love my apple devices, but this is very frustrating. I bought this Data Logger for a specific purpuse to help out with my Search and Rescue volunteer activities, and I really need help with this!!! I am hoping apple will help me!!!
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Melissa

melissafromlenexa wrote:
That is not the right device, it is the
Holux
M-1200E Bluetooth GPS Logger
I looked at the same sight for that and it does not say that. This is the first time I have posted a question, you don't have to be mean about it. I am trying to get this to work for a good cause.
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How do I use the High Speed Data Logger with multiple I/O devices?

I am using the High Speed Data Logger vi to read from a 16 channel A/D card (NI PCI-MIO-16E). The project may require more than 16 channels. How can I use High Speed Data Logger to read from two A/D cards? Will it be able to write the data to one file?

The High Speed Data Logger vi will not acquire and right to multiple DAQ boards at the same time without modification. LabVIEW is more than capable of doing this what you are trying to do, but you will have to modify the code.
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How can I automatically control the channel selection on the data logger

I am an in-experienced use with a simple system which measures and displays temperature from 16 thermocouples. Not all 16 thermocouples are always connected at once and those that aren't are blanked off from view. I would also like to use the Advanced Data Logger VI to log the measurements but would like to have the logger only record or display the thermocouples that are connected. Un-connected channels give a signal of 1264 degrees so I can use a comparator to give a boolean output to switch them off. Can anyone please tell me how to do this.
Also, I need to expand the VI to read all 16 channels instead of the current 8. Any help would be appreciated

Mike,
Unfortunately I couldn't get the reference of the example you mention, probably you may want to add it as an attachment so the person who decides to answer this question knows exactly which example you are describing. So for the part of making visible/invisible some of the channels I attached an example that I built for demonstrating this feature, simply open the VI and run it, if you want one of the channels or plots from the graph to be invisible just click in the push button that corresponds to it. Switch to the block diagram and review the use of property nodes, using the property of visible.
If you want to generate a support request please visit www.ni.com/ask to see the options of reaching us.
Good luck!
Nestor Sanchez
Applications Engine
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National Instruments
Nestor
National Instruments
Attachments:
Visible_Plots.vi ‏46 KB

Embedding data from xml file into metadata of a pdf

Hi All
I'm wanting to do the following, but struggling to figure the right way to go about it.
I want to embedded data from my MIS into a pdf's metadata (as scrnshot). I can create a standalone xml file with all the data I require, but I'm unsure how to automate that being embedded into a pdf's advanced metadata. I know this can be done, as it worked at a previous employer, but I didn't get chance to find out how they did it.
I'm wanting to do this so I can carry out a more advanced search of the metadata in Bridge.
Any advice would be appreciated!

Hi Northern,
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   Please follow the following steps
1. Download XMPToolkit SDK and follow the steps to compile Sample
2. Open ModifyingXMP file, replace all the content of that file with the below content
3. Compile the ModifyingXMP file.
4. The ModifyXMP.exe will be generated in folder (samples\target\windows\Debug), if you have changed the output folder it will be generated there.
5. In parallel to ModifyingXMP.exe put the sample.xml (the xml file you have) and also the pdf file (say pdf file name is mypdf.pdf)
6. Go to console and change directory to the directory where ModifyingXMP is and pass the following command
ModifyingXMP mypdf.pdf
7. Open the pdf file and check that value/properties
For your reference, I am putting the content of the sample.xml file too, put this content in sample.xmp and any pdf and you will find subject field is getting added.
************** content of the sample.xml file. Create a file name sample.xml and put that content. Put sample.xml in parallel to ModifyingXMP.exe*******
<rdf:RDF xmlns:rdf='http://www.w3.org/1999/02/22-rdf-syntax-ns#'>
    <rdf:Description rdf:about='' xmlns:dc='http://purl.org/dc/elements/1.1/'>
        <dc:subject>
            <rdf:Bag>
                <rdf:li>XMP</rdf:li>
                <rdf:li>SDK</rdf:li>
                <rdf:li>Sample</rdf:li>
            </rdf:Bag>
        </dc:subject>
        <dc:format>image/tiff</dc:format>
    </rdf:Description>
</rdf:RDF>
******************* MODIFIED CONTENT OF MODIFYING.CPP FILE. ***************************************************************************************** ************
// ========================================================================================= ========
// Copyright 2008 Adobe Systems Incorporated
// All Rights Reserved.
// NOTICE: Adobe permits you to use, modify, and distribute this file in accordance with the terms
// of the Adobe license agreement accompanying it.
// ========================================================================================= ========
* Tutorial solution for Walkthrough 2 in the XMP Programmers Guide, Modifying XMP
* Demonstrates how to open a file for update, and modifying the contained XMP before writing it back to the file.
#include <cstdio>
#include <vector>
#include <string>
#include <cstring>
// Must be defined to instantiate template classes
#define TXMP_STRING_TYPE std::string
// Must be defined to give access to XMPFiles
#define XMP_INCLUDE_XMPFILES 1
// Ensure XMP templates are instantiated
#include "public/include/XMP.incl_cpp"
// Provide access to the API
#include "public/include/XMP.hpp"
#include <iostream>
#include <fstream>
using namespace std;
* Creates an XMP object from an RDF string. The string is used to
* to simulate creating and XMP object from multiple input buffers.
* The last call to ParseFromBuffer has no kXMP_ParseMoreBuffers options,
* thereby indicating this is the last input buffer.
#include <sstream>
SXMPMeta createXMPFromRDF()
    string rdf;
    //open the RDF file and put it's content into rdf buffer
    ifstream inFile;
    inFile.open("sample.xml");//open the input file
    if (!inFile.is_open()) {
        cout <<"Couldn't open xml file" <<endl;
        exit(1);
    stringstream strStream;
    strStream << inFile.rdbuf();//read the file
    rdf = strStream.str();//str holds the content of the file
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    // Loop over the rdf string and create the XMP object
    // 10 characters at a time
    int i;
    for (i = 0; i < (long)rdf.size() - 10; i += 10 )
        meta.ParseFromBuffer ( &rdf[i], 10, kXMP_ParseMoreBuffers );
    meta.ParseFromBuffer ( &rdf[i], (XMP_StringLen) rdf.size() - i );
    return meta;
int main ( int argc, const char * argv[] )
    if ( argc != 2 ) // 2 := command and 1 parameter
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        return 0;
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    if(!SXMPMeta::Initialize())
        cout << "Could not initialize toolkit!";
        return -1;
    XMP_OptionBits options = 0;
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        try
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            SXMPFiles myFile;
            std::string status = "";
            // First we try and open the file
            ok = myFile.OpenFile(filename, kXMP_UnknownFile, opts);
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                // Now try using packet scanning
                opts = kXMPFiles_OpenForUpdate | kXMPFiles_OpenUsePacketScanning;
                ok = myFile.OpenFile(filename, kXMP_UnknownFile, opts);
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                cout << status << endl;
                cout << filename << " is opened successfully" << endl;
                // Create the XMP object and get the XMP data
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                // Append the newly created properties onto the original XMP object
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                    myFile.PutXMP(meta);
                // Close the SXMPFile. This *must* be called. The XMP is not
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            else
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        catch(XMP_Error & e)
            cout << "ERROR: " << e.GetErrMsg() << endl;
        // Terminate the toolkit
        SXMPFiles::Terminate();
        SXMPMeta::Terminate();
    else
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    return 0;
Please let me know if you find any issue/assistance.
-Sunil

I am using a GPIB card to send a pulse to data logger to control a firing system

I need to be able to fire my linear accelerator from the computer, by sending a negative pulse and I need to be able to control the pulse duration, and also its voltage, I am using an HP34970A data logger with a HP34907A module.

The trigger 488.2 command might be of help. Trigger sends the Group Execute Trigger (GET) GPIB message to the device described by address. If address is the constant NOADDR, the GET message is sent to all devices that are currently listen-active on the GPIB.

Data logger and online processing application

Dear All
My application should include both data logging and online processing threads which are synchronized. I already implemented that by means of something we call "Ring buffer" which is an array containing the data and when the data stream reach its end it start over again from first index. It works almost well but sometimes it seems that my "timed loop" which is my processing thread is a little bit ahead of my data logger thread and it makes some distortion on data stream in processing thread but of course not in data logger.
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Best regards
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Hello Afshin,
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Regards,
Eirikur Runarsson
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I am looking for a simple data logger for temperature

I am having a hard time finding a basic data logger for recording temperature over a period of several minutes. I am using a SCXI 1001 Chassis, with SCXI 1303 terminal blocks hooked up to a computer running Windows XP and Labview 8.0 and VI Logger Lite.

Hi Joel,
Thanks for posting. You could log your data
using either LabVIEW or VI Logger. If using VI Logger, the following
screenshot from the help file explains how to log data:
If you are using LabVIEW, you can use the Write to Spreadsheet File function (or a number of other functions depending on your preference).
If you are using the DAQmx driver, a third option would be to download SignalExpress.
The LE edition is free, and provides the basic functionality that you
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a 30-day trial of the full version--it should be fairly intuitive to
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Message Edited by John P on 01-09-2009 06:03 PM
John Passiak
Attachments:
VI_Logger.PNG ‏160 KB

Data log directly from Norma 4000 power analyser rather than via Keithley 2700 data logger

Hello fellow LabVIEW users
My Norma 4000 power analyser is connected to my Keithley 2700 data logger from which it logs data via GPIB using the attached VI.
Prior to making this VI I was not aware that the Norma 4000 could also log data values directly using labview which I found in the following LabVIEW post.
http://forums.ni.com/ni/attachments/ni/170/536731/1/LV9.zip
The Keithley logs the values into a *.txt file that can be opened in excel for analysis of the data. There are 7 values that are pulled from the power analyser and 1 from a radiometer and 1 from a temperature sensor. I essentially want the 7 values from the data analyser be directly input into the save file i/o rather than going via the Keithley which it is doing now. Some the signal is lost due to noise etc when going from ADC then DAC. Which is why certain values pulled from the Keithley have been multiplied before being put into file i/o.
Since these are popular instruments of choice I was wondering if anyone can direct me to any links to LabVIEW VIs that have already been made that DIRECTLY logs data values from the Norma 4000 into a *.txt file as in the attached VI. Or point me in the right direction perhaps. The LNOPA01 Getting Started.vi only shows current values. I want the data values to be logged into the *.txt files at certain time intervals with the corresponding signals from the radiometer and temperature sensor.
The Keithley drivers can be found in the following link
http://sine.ni.com/apps/utf8/niid_web_display.download_page?p_id_guid=E3B19B3E93BC659CE034080020E748...
Thanks for all the help beforehand.
Attachments:
Data Logger_Final Version.vi ‏57 KB

Hi,
I was not able to find an example that will directly log data from the Norma 4000. I looked at the LNOPA01 Getting Started.vi and it seems like, with a few modifications, you could use this to log data. You would have to open a file, write the collected data to the file, and then close the file. You are already doing something similar to this in the VI you attached.
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Data Guard Gap Monitoring script

Hello,
Can anyone please provide me data guard gap monitoring script for databases(primary,standby) on RAC.
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Thanks
Edited by: 951368 on Dec 26, 2012 9:21 AM

951368 wrote:
Hello,
Can anyone please provide me data guard gap monitoring script for databases(primary,standby) on RAC.
Oracle RDBMS 11.2.0.2(4-node RAC) on RHEL 5.6.
Thanks
Edited by: 951368 on Dec 26, 2012 9:21 AMUse the script of MSeberg, Modify v$instance as gv$instance for RAC

Embedded Data Warehouse

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1. Do I need the Embedded data warehouse installed to use ASCP?
2. Do I need the Embedded data warehouse to use manufacturing and Purchasing intelligence?
3. Is Embedded Data Warehouse different than the Enterprise Data Warehouse?
thanks in advance.
t

NO.
No to all of your questions.
-- to use Discoverer against an APPS data model, you will be required to build an EUL. Which is a lot of work.
-- the "Intelligence" package contains that EUL that you need, so if you buy the intelligence module you will get that. And as a bonus you get the E-DW which is the "ENTERPRISE" or "EMBEDDED" database. same product.
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Embedded data logger gaps

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