Decisions based on the data acquisition in Labview

Hello
how can make decisions in labview based the output of the data acquisition..
For example. if I have a voltage comming in from the light sensor...and lets say I want run the for loop this many times if the voltage comming out is greater than some threshold...any examples.
Thanks
SK

1. What makes you think the for loop does not iterate? If the Start Stop toggle switch is in the Stop position, the while loop inside the for loop will never end so the for loop will stay in its current iteration waiting for the while loop. If the switch is true, then the for loop will run through its 10 or 20 iterations in 1 or 2 seconds.
2. It is usually better to create and start the task outside the loop, write the data inside the loop and then clear the task after the loop finishes.
3. Your indexing of the boolean array to write can be done very simply with the Quotient & Remainder function and a Subtract from 3 inside the false case of the CCLW/CLW structure.
Run your VI with Highlight Execution (the light bulb on the block diagram toolbar) turned on and watch what it does.
Here is a cleaned up version of your diagram showing the simplified indexing.
Lynn

Similar Messages

Creation of internal table dynamically based on the Date Range entered

Hi SAPgurus,
I have been facing one issue i.e creation of internal table dynamically based on the date range entered in the selection screen. For example the date range I am giving as 06/2006 to 08/2006, it should display the Fieldcatelog dynamically, this part i have completed but the only issue I am facing is to populate the sales data into that fields.
Right now my program is displaying the ALV like this.
Ex:
<b>CSR    District   06/2006 07/2006 08/2006 totals</b>
Shiva      New York                             10.00
Shiva      new york                             30.00
Shiva      new york                             40.00
but it should display like this
<b>CSR    District 06/2006 07/2006 08/2006 totals</b>
Shiva New York 10.00   30.00 40.00
80.00
Please help me in this scenario, how to acheive like this..
Thanks & Regards,
Sivaram Kandula

Hi Sivaram,
             I also got the same requirement . i saw rich and your code whatever you have uploaded.i have created dynamic internal table but i am facing the issue to populating the data to my dynamic internal table.
Sivaram, can you please explain your code after this.
*<dyn_table>
*tab_item.
LOOP AT tab_item.
    ASSIGN COMPONENT 1 OF STRUCTURE <dyn_wa> TO <dyn_table>.
    ASSIGN COMPONENT 2 OF STRUCTURE <dyn_wa> TO <dyn_table>.
*    <dyn_wa> = tab_item-bztxt.
*    <dyn_wa> = tab_item-total.
*    APPEND <dyn_wa> TO <dyn_table>.
**    <dyn_wa> = tab_item-total.
**    ASSIGN tab_item-bezei TO <dyn_wa>.
* APPEND <dyn_table>.
ENDLOOP.
how you are puting the loop at tab_item. but tab_item is already commented.
can you send me the code after that.
i am sending some part of my code.
CALL METHOD cl_alv_table_create=>create_dynamic_table
   EXPORTING
     it_fieldcatalog = gt_fCAT1
   IMPORTING
     ep_table        = new_table.
ASSIGN new_table->* TO <dyn_table>.
   create data new_line like line of <dyn_table>.
   assign new_line->* to <dyn_wa>.
select vbeln
        fkart
        vkorg
        vtweg
        fkdat
        spart
        fksto
        from vbrk
        client specified
        into table gt_vbrk
        where mandt = sy-mandt
        and fkart in ('ZF5','ZFR')
        and vkorg = '1100'
        and vtweg = '20'
        and fkdat in s_fkdat
        and spart = '06'
        and fksto = ' '.
   if gt_vbrk[] is not initial.
select vbeln
          fkimg
          prsdt
          netwr
          matnr
          arktx
          werks
          mwsbp
          from vbrp
          client specified
          into table gt_vbrp
          for all entries in gt_vbrk
          where vbeln = gt_vbrk-vbeln
          and werks in s_werks
          and matnr in s_matnr.
endif.
select mnr ltx spras from t247
into table it_t247
where spras = 'E'.
data: lv_month1 type vbrp-prsdt,
       name1(3) type c,
       s_month type string,
        s_month1 type string,
         s_month2 type string.
*      lv_netwr1 type vbrp-netwr,
*          lv_mwsbp1 type vbrp-mwsbp.
      loop at gt_vbrp into gs_vbrp.
        gs_final2-matnr = gs_vbrp-matnr.
        gs_final2-arktx = gs_vbrp-arktx.
        gs_final2-fkimg = gs_vbrp-fkimg.
       lv_month1 = gs_vbrp-prsdt.
        read table it_t247 into wa_t247 with key mnr = lv_month1+4(2).
        if sy-subrc eq 0.
        name1 = wa_t247-ltx.
        endif.
         concatenate name1
                   lv_month1(4) into s_month SEPARATED BY '_' .
         CONCATENATE S_MONTH 'QTY' INTO S_MONTH1 SEPARATED BY ''.
          CONCATENATE S_MONTH 'VALUE' INTO S_MONTH2 SEPARATED BY ''.
         gs_final2-month = s_month.
          lv_netwr1 = gs_vbrp-netwr.
        lv_mwsbp1 = gs_vbrp-mwsbp.
        gs_final2-MONTH_QTY = S_MONTH1.
        GS_FINAL2-MONTH_VAL = S_MONTH2.
        gs_final2-value = lv_netwr1 + lv_mwsbp1.
       append gs_final2 to gt_final2.
       clear: gs_final2. "lv_name2.
       endloop.
       if gt_final2[] is not initial.
         sort gt_final2 by matnr month ascending .
         loop at gt_final2 into gs_final2.
        gs_final2_01 = gs_final2.
     collect gs_final2_01 into gt_final2_01.
    endloop.
       endif.
   ENDIF..
Regards
Ankur

Header row in ALV Grid, based on the data in the table

Hi All,
I have a requirement wherein, based on the data in the table used for ALV, i need to add rows as sort of header in the ALV display.
For e.g. my table has
Appl No. Item Material Desc.           Cost                 -> Column Heading
1             10     400        Excavation    10.00               -> Data
1             20     400        Footing         10.00
2             10     400        Excavation    10.00
2             20     400        Footing         10.00
For every new Appl No., i need to add a row, or sort of header specifying the appl no. details. means
Appl No. Item Material Desc.           Cost
Appli. No. 1                   Date: 01/01/1009                   -> my requirement
1             10     400        Excavation    10.00
1             20     400        Footing         10.00
Appli. No. 2                   Date: 02/01/1009
2             10     400        Excavation    10.00
2             20     400        Footing         10.00
Is this possible in ALV my any means? Currently i m using normal ALV Grid
Regards,
Janaki

Hi..
     Try like this... I think u have Application number and date in ur table ... First get the total table data into internal table.. and to add the row
     *Declare the var1 as 0 and var2.
loop at internal table
     *var1 = var1 +1
when application number =var1
         concatenate : 'Appli. No.' (table- appli no field) 'Date:' (table-date field) into var2.
perform display(some name)
     *endloop.
     *form display...
          alv display part.. first give that var2 like eg.. wa_alv-field= 'var2'.
end form.
    Hope this will help u .....
Regards,
Abaper

Percentage based on the Date and Dimension - WEBI

Hello,
I have to calculate percentage based on the Dates and a Dimension.
I have BEX Query as source and reporting is done on BOXI - WEBI
Here is the table structure in the report.
List# , Process01, Process02.
List# is unique and Process01-Has 4 operations, Process02 has 3 operations (and these Operations can change from 3 to 7 or 2).
Operations will have a 'Date' only when it is completed.
and when all the operations in a 'Process' have 'Date' then i need to get the 'Latest Date'. If few of the operations are not confirmed, then i need to get the percentage like when 2 of 4 operations have date it will be 50% and when no operation is confirmed then 0% and so on .
Example Cube data:
List#,ProcessCategory,Operation,Date
100,Process01,456,11/11/2010.
100,Process01,457,11/12/2010.
100,Process01,489,
100,Process01,490,
100,Process02,890,11/13/2010.
100,Process02,891,11/14/2010.
100,Proceess02,892,11/15/2010
Result:
List#, Process01, Process02
100,50%,11/15/2010.
Please help me in this, i tryed different logics but it is giving ERROR at percentage.
Your help would be appreciated!
Thanks in advance.

I applied this:
If([Process Category] InList("Process01") And IsNull([Date]);[Percentage];Max(Date)))
[Percentage] = (Count([Date])/Count([Operation]))*100.
but, this is not becoming true - even when Operation has one Date
Showing result as:
List#,Process01,Process02
100, 11/12/2010, 11/15/2010
But result should be
100,50%,11/15/2010
Can anyone help me achieve the right result!
Thanks in advance.

Setting the series color of a bi beans graph based on the data values

How do I conditionally set the series color of a bi beans graph based on the data values?
I am using the following code to get the data values and set the series color:
Graph gr=(Graph)CmdrDashboardP1_pres1.getView();
DataAccess da=gr.getGraphModel().getDataAccess();
DataDirector dd=gr.getDataDirector();
DataMap dm=dd.getDataMap();
int re=dd.ROW_EDGE;
int ce=dd.COLUMN_EDGE;
Object val=da.getValue(re,ce,dm.DATA_TYPE);
int seriesCount=da.getEdgeCurrentSlice(DataDirector.ROW_EDGE);
if (val <=45.0)
gr.getSeries().setColor(new Color(255,0,0),seriesCount);
I get a NullPointerException from the line of code "Object val=da.getValue(re,ce,dm.DATA_TYPE)." I have tried the code with DATA_UNFORMATTED as well, but get the same exception. When I print the DataMap value of dm the results are [dataUnformatted, dataViewFormat, value, dataIsTotal, dataType].
Also, I get the error "method <= (java.lang.Object,double) not found in class _CmdrDashboardP1" from the "if (val <=45.0)" code.
Thanks for any assistance

How do I conditionally set the series color of a bi beans graph based on the data values?
I am using the following code to get the data values and set the series color:
Graph gr=(Graph)CmdrDashboardP1_pres1.getView();
DataAccess da=gr.getGraphModel().getDataAccess();
DataDirector dd=gr.getDataDirector();
DataMap dm=dd.getDataMap();
int re=dd.ROW_EDGE;
int ce=dd.COLUMN_EDGE;
Object val=da.getValue(re,ce,dm.DATA_TYPE);
int seriesCount=da.getEdgeCurrentSlice(DataDirector.ROW_EDGE);
if (val <=45.0)
gr.getSeries().setColor(new Color(255,0,0),seriesCount);
I get a NullPointerException from the line of code "Object val=da.getValue(re,ce,dm.DATA_TYPE)." I have tried the code with DATA_UNFORMATTED as well, but get the same exception. When I print the DataMap value of dm the results are [dataUnformatted, dataViewFormat, value, dataIsTotal, dataType].
Also, I get the error "method <= (java.lang.Object,double) not found in class _CmdrDashboardP1" from the "if (val <=45.0)" code.
Thanks for any assistance

I have written a binary file with a specific header format in LABVIEW 8.6 and tried to Read the same Data File, Using LABVIEW 7.1.Here i Found some difficulty.Is there any way to Read the Data File(of LABVIEW 8.6), Using LABVIEW 7.1?

I have written a binary file with a specific header format in LABVIEW 8.6 and tried to Read the same Data File, Using LABVIEW 7.1.Here i Found some difficulty.Is there any way to Read the Data File(of LABVIEW 8.6), Using LABVIEW 7.1?

I can think of two possible stumbling blocks:
What are your 8.6 options for "byte order" and "prepend array or string size"?
Overall, many file IO functions have changed with LabVIEW 8.0, so there might not be an exact 1:1 code conversion. You might need to make some modifications. For example, in 7.1, you should use "write file", the "binary file VIs" are special purpose (I16 or SGL). What is your data type?
LabVIEW Champion . Do more with less code and in less time .

How to enable/disable the input fields based on the data entered/user action in the web dynpro abap?

How to enable/disable the input fields based on the data entered in the web dynpro application abap? If the user enters data in one input field then only the next input field should be enabled else it should be in disabled state. Please guide.

Hi,
Try this code.
First create a attribute with the name readonly of type wdy_boolean and bind it read_only property of input field of which is you want to enable or disable.
Next go to Init method.
Set the readonly value as 'X'.
DATA lo_el_context TYPE REF TO if_wd_context_element.
     DATA ls_context TYPE wd_this->element_context.
     DATA lv_visible TYPE wd_this->element_context-visible.
*   get element via lead selection
     lo_el_context = wd_context->get_element( ).
*   @TODO handle not set lead selection
     IF lo_el_context IS INITIAL.
     ENDIF.
*   @TODO fill attribute
*   lv_visible = 1.
*   set single attribute
     lo_el_context->set_attribute(
       name = `READONLY`
       value = 'X').
After that Go to the Action ENTER.
First read the input field ( first input field, which is value entered field) , next give a condition
if input value is not initial then set the readonly value is ' '.
DATA lo_nd_input TYPE REF TO if_wd_context_node.
     DATA lo_el_input TYPE REF TO if_wd_context_element.
     DATA ls_input TYPE wd_this->element_input.
     DATA lv_vbeln TYPE wd_this->element_input-vbeln.
*   navigate from <CONTEXT> to <INPUT> via lead selection
     lo_nd_input = wd_context->get_child_node( name = wd_this->wdctx_input ).
*   @TODO handle non existant child
*   IF lo_nd_input IS INITIAL.
*   ENDIF.
*   get element via lead selection
     lo_el_input = lo_nd_input->get_element( ).
*   @TODO handle not set lead selection
     IF lo_el_input IS INITIAL.
     ENDIF.
*   get single attribute
     lo_el_input->get_attribute(
       EXPORTING
         name = `VBELN`
       IMPORTING
         value = lv_vbeln ).
if lv_vbeln IS not INITIAL.
    DATA lo_el_context TYPE REF TO if_wd_context_element.
    DATA ls_context TYPE wd_this->element_context.
    DATA lv_visible TYPE wd_this->element_context-visible.
* get element via lead selection
    lo_el_context = wd_context->get_element( ).
* @TODO handle not set lead selection
    IF lo_el_context IS INITIAL.
    ENDIF.
* @TODO fill attribute
* lv_visible = 1.
* set single attribute
    lo_el_context->set_attribute(
      name = `READONLY`
      value = ' ' ).

Is it possible to find the table based on the Date ?

Dear Team ,
Is it possible to find the table based on the Date ?
I have created an table ,But forgot the Table Name .
Is it possible to find the Tables created on particular Date .
Regards ,
Augustine

as date is record the time also below query will work.
select * from user_objects
where
object_type = 'TABLE' and
to_date(created,'DD-MON-YYYY') =to_date('<your date value in DD-MON-YYYY format>','DD-MON-YYYY');
Edited by: shaileshM on Feb 24, 2010 9:39 PM

What is the data throughput in labview. I want to use the parallel as acheap digital i/o to drive a stepper motor.

I am trying to use the parallel port on a win xp machine to send data a@ up to a 3k rate. This is for the the purpose of driving a stepper motor. I have tried the port.out vi and placed this vi in a loop and it on a scope it looks like I am limited to a a 200hz rate. What am I doing wrong??? Can labview do this or is it too slow ???
Thanks

snook wrote:
> what is the data throughput in labview. I want to use the parallel as
> acheap digital i/o to drive a stepper motor.
>
> I am trying to use the parallel port on a win xp machine to send data
> a@ up to a 3k rate. This is for the the purpose of driving a stepper
> motor. I have tried the port.out vi and placed this vi in a loop and
> it on a scope it looks like I am limited to a a 200hz rate. What am I
> doing wrong??? Can labview do this or is it too slow ???
Basically the way the Port I/O VIs are implemented they call through a
device driver for each port access. This slows down the maximum port
accesses to something like 1000 times per second depending on the speed
of your CPU.
There is a way to do it faster but that is a little more trick
y. The
idea is to use a device driver to enable particular port addresses to be
accessed directly from the application level instead of always going
through the kernel.
I have written such a VI library and accompagning DLL and device driver
and made it available on OpenG. It is not yet part of the standard
binary distribution packets so you will have to get it from the CVS
repository.
Go to:
http://cvs.sourceforge.net/viewcvs.py/opengtoolkit/portIO/built/portio/
and download all the files in there including the ones in the
subdirectory "ogportio.llb" and if you like "docs"
If you want the nitty gritty technical details you can also look at
http://cvs.sourceforge.net/viewcvs.py/*checkout*/opengtoolkit/portIO/c_source/Description.htm?rev=1.5
On my 866 MHz Pentium mobile I can increase the number of port accesses
in this way from 440 ms for 4000 read byte port accesses (100us ms per
access) to 20 ms for the same number of read accesses (5 us per access).
Rolf Kalbermatter
Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions

Get Old Value and the new value based on the date

Hi
I have a table called roster created below with following insert statements.
CREATE TABLE ROSTER
ROSTER_EMPLOYEE_DEF_ID NUMBER,
EMPLOYEE_ID NUMBER,
DEFINITION_REGION_CODE NUMBER,
DEFINITION_DISTRICT_CODE NUMBER,
DEFINITION_TERRITORY_CODE NUMBER,
START_DATE DATE,
END_DATE DATE
INSERT INTO ROSTER
(ROSTER_EMPLOYEE_DEF_ID,EMPLOYEE_ID,DEFINITION_REGION_CODE,DEFINITION_DISTRICT_CODE,DEFINITION_TERRITORY_CODE,START_DATE,END_DATE)
VALUES
(1,299,222,333,444,'1-JUN-2011','30-JUN-2011')
INSERT INTO ROSTER
(ROSTER_EMPLOYEE_DEF_ID,EMPLOYEE_ID,DEFINITION_REGION_CODE,DEFINITION_DISTRICT_CODE,DEFINITION_TERRITORY_CODE,START_DATE,END_DATE)
VALUES
(2,299,223,334,445,'1-JUL-2011','20-JUL-2011')
INSERT INTO ROSTER
(ROSTER_EMPLOYEE_DEF_ID,EMPLOYEE_ID,DEFINITION_REGION_CODE,DEFINITION_DISTRICT_CODE,DEFINITION_TERRITORY_CODE,START_DATE,END_DATE)
VALUES
(3,299,224,335,446,'1-AUG-2011','30-AUG-2011')
INSERT INTO ROSTER
(ROSTER_EMPLOYEE_DEF_ID,EMPLOYEE_ID,DEFINITION_REGION_CODE,DEFINITION_DISTRICT_CODE,DEFINITION_TERRITORY_CODE,START_DATE,END_DATE)
VALUES
(4,300,500,400,300,'1-JUN-2011','20-JUN-2011')
INSERT INTO ROSTER
(ROSTER_EMPLOYEE_DEF_ID,EMPLOYEE_ID,DEFINITION_REGION_CODE,DEFINITION_DISTRICT_CODE,DEFINITION_TERRITORY_CODE,START_DATE,END_DATE)
VALUES
(5,300,501,401,301,'1-JUL-2011','20-JUL-2011')
In the above table we have columns like
EMPLOYEE_ID,DEFINITION_REGION_CODE,DEFINITION_DISTRICT_CODE,DEFINITION_TERRITORY_CODE,START_DATE,END_DATE
The result i am looking from the above table is based on the EMPLOYEE_ID OF START_DATE AND END_DATE
I need to get OLD_DEFINITION_REGION_CODE and the NEW_DEFINITION_CODE
Similarly OLD_DEFINITION_REGION_CODE and the NEW_DEFINITION_REGION_CODE
and OLD_DEFINITION_TERRITORY_CODE and the NEW_DEFINITION_TERRITORY_CODE
I need to get one row of data for each employee saying old value and new value
for employee 299 there are 3 records it must give the new record which is the latest date i.e start date 1-aug-2011 and end date 30-aug-2011 old record will be
start date 1-jul-2011 and 20-jul-2011
For the above table data i need to get the data as below
EMPLOYEE_ID OLD_DEFINITION_REGION_CODE NEW_DEFINITION_CODE OLD_DEFINITION_REGION_CODE NEW_DEFINITION_REGION_CODE START_DATE END_DATE
299 223 224 334 335 20-JUL-11 30-AUG-11
300 500 501 400 401 20-JUN-11 20-JUL-11
Please suggest me to get the above result based on the data. Please let me know if my posts are not clear
Thanks
Sudhir

SELECT EMPLOYEE_ID,
        OLD_DEFINITION_REGION_CODE,
        NEW_DEFINITION_REGION_CODE,
        OLD_DEFINITION_DISTRICT_CODE,
        NEW_DEFINITION_DISTRICT_CODE,
        OLD_DEFINITION_TERRITORY_CODE,
        NEW_DEFINITION_TERRITORY_CODE,
        START_DATE,
        END_DATE
FROM (
         SELECT EMPLOYEE_ID,
                 ROW_NUMBER() OVER(PARTITION BY EMPLOYEE_ID ORDER BY START_DATE DESC) RN,
                 LAG(DEFINITION_REGION_CODE) OVER(PARTITION BY EMPLOYEE_ID ORDER BY START_DATE) OLD_DEFINITION_REGION_CODE,
                 DEFINITION_REGION_CODE NEW_DEFINITION_REGION_CODE,
                 LAG(DEFINITION_DISTRICT_CODE) OVER(PARTITION BY EMPLOYEE_ID ORDER BY START_DATE) OLD_DEFINITION_DISTRICT_CODE,
                 DEFINITION_DISTRICT_CODE NEW_DEFINITION_DISTRICT_CODE,
                 LAG(DEFINITION_TERRITORY_CODE) OVER(PARTITION BY EMPLOYEE_ID ORDER BY START_DATE) OLD_DEFINITION_TERRITORY_CODE,
                 DEFINITION_TERRITORY_CODE NEW_DEFINITION_TERRITORY_CODE,
                 LAG(END_DATE) OVER(PARTITION BY EMPLOYEE_ID ORDER BY START_DATE) START_DATE,
                 END_DATE
           FROM ROSTER
WHERE RN = 1
EMPLOYEE_ID OLD_DEFINITION_REGION_CODE NEW_DEFINITION_REGION_CODE OLD_DEFINITION_DISTRICT_CODE NEW_DEFINITION_DISTRICT_CODE OLD_DEFINITION_TERRITORY_CODE NEW_DEFINITION_TERRITORY_CODE START_DAT END_DATE
        299                        223                        224                          334                          335                           445                           446 20-JUL-11 30-AUG-11
        300                        500                        501                          400                          401                           300                           301 20-JUN-11 20-JUL-11
SQL> SY.

I want to implement three level Horizental navigation on the top navigation and menu items are created based on the data available in a SharePoint List.

Hi All,
I want to implement three level Horizental navigation on the top navigation and menu items are created based on the data available in a SharePoint List.
Implement this requirement through customization, how can i start any help
Thanks

Hello,
You can follow these links to get the result that you want. You can get the desired result either using the custom list or a site map. Please make sure when you edit the master page, dont work on the original v4.master. Always make a a copy and then work
on it.
This link will show you how get that navigation using a list.
http://www.bitsofsharepoint.com/BlogPoint/Lists/Posts/Post.aspx?ID=60
This link will show you how get that navigation using a sitemap.
http://www.sharepointdiary.com/2012/01/custom-top-navigation-using-sitemap.html
Please mark as "Answered" if this helped you.
Thanks,
norasampang

18f4550 USB Data Acquisition Card - Labview

Hello!
I made USB Data Acquisition Card from here:
h...p://www.elektor.com/magazines/2007/november/usb-data-acquisition-card.271706.lynkx
And I want controll this acquisiton card over Labview.
Could you tell me please, is it possible and how!?
What I need to do!? (step by step)
Thank you!

Hallo I got the same problem. I got the same DAQ, I have te DLL file and I found the Call Library Function Node but that is when I stuck. I don’t know which parameters I need to fill in. can some one thell me how to go on. @124132543 maybe you already heave the DAQ working en can you help me.
Roy ( Holland)

How to synchronize the data acquisition from both GPIB and DAQ card

I want to begin/stop acquiring the data from GPIB and PCI6024E card into Labview at the same time. Since the acquisition from GPIB is quite slow comparing to the one from DAQ card, I can not put both of them in the same loop structure. Is it possible to synchronize them?
Thank you!

Hi,
I wanted to save data acquired from NI-DAQ (for example, NI 9234) in a file using the DAQ-mx ANSI C Code. The response I got was as follows:-
One way to do it is with TDMS logging. DAQmx comes with functions designed to log to a TDMS file. This is a special file type that is used for collecting data in a logical format. It can be displayed in a TDMS viewer where data is separated into groups and channels. NI-DAQmx provides examples for how to log to TDMS. Look at the TDMS examples in the C:\Users\Public\Documents\National Instruments\NI-DAQ\Examples\DAQmx ANSI C\Analog In\Measure Voltage directory.
However, now I want to know is there a way that using that same C code, can we save the data in a .txt file format (Text File) instead of a TDMS file? We actually want to access that file through MATLAB (that's why we want to save it in text format).
Also on an other note, is there a way we can access & open TDMS files by MATLAB?
Thanks,
Sauvik Das Gupta

Verification of the data-acquisition process

Hello,
my name is Andreas and I'm a beginner in LabVIEW programming.
My task could be described as follows:
I have on data signal to acquire with the PC-DIO-32 Acquisition Card.
I have also the connection block SCB-68 to connect my application.
What is my application:
"clock one": is a 166kHz clock trigger clock ti= 200ns tp=5.8us
"clock two": is a data stream signal binary signal (patterns of 0 and 1) data stream of a Random Generator
Each time when a positive edge of the clock "one clock" arrives the DIO 6533 has to be store the signal of
the "clock two" data in a binary file.
I chose the " Burst" - mode example in external trigger clock conditions for my application:
and I use the SCB-68 connections:
PCLK1 (connector 5 of the SCB-68) is the connection for my external trigger clock "clock one"
ACK1(STARTTRIG1) (connector 3 of the SCB-68) is connected to 5+ Volt (connector 1 of the SCB-68)
REG1(connector 2 of the SCB-68) is connected to 5+ Volt (connector 1 of the SCB-68)
The port data output of the VI DIO-Read is connected to the data input of the VI Write File!
The program seems to work fine but I can't verify if the acquisition card takes the data of "clock two" really
at that time when the rising slope of "clock one" arrives!
To solve that problem I did the inverse option of the "burst" mode-> Pattern generation using an external clock at PCLK!
So I took my clock "clock one" fed to PCLK1 and I started the program!
Bad, it didn't work! Problem with a buffer configuration ERROR -10022!
So I will send you my program to give you an idea of my design problem!
If the "burst" - mode is not the best way to solve my application problem I would like to know in which mode
I should adjust the card to solve my problem!
Furthermore it would be great to get a programming example in which I can observe if the data is taken by the card
each time a positive slope occurs!!
Thank you very much for your help,
Andreas
P.S:
It is not easy at all to find your answer in your whole database! So if possible send me your answer to
[email protected]
(Sorry for my English!)
Attachments:
burstaziwithfile.vi ‏108 KB

Thank you very much toddd,
is seems to you that I'am a real looser.
But if I use the Pattern Input vi with the DIO 6533 I still not able to verify if the stored or screened data (see the graph vi in my example)is really that one which should be acquired by the card!
Let me explain:
You have NRZ-signal generator which output you can switch on or off.
You may connect your data-stream which you want to store into the DIO card to DIOA0 (connector 10 at SCB-68).
Your NRZ-signal from the generator is fed to REQ1 (connector 2 at SCB-68).
Now you will start your labview program. I set a timing delay at Read vi of 25sec.
I also monitored the data-stream of DIOA0 and the trigger signal at REQ1 using an oscilloscope.
(the trigger of the osci is set
to single mode , leading edge for the osci-channel which is connected to the trigger signal at REQ1)
Now I switch on the output of the NRZ-signal generator to on.
Now you can see at the screen of your scope some trgger pulses an the data-stream.
At each time when the trigger signal positive slope rises the data(0 or 1) at DIOA0 must be stored!
Problem: the detected data on the scope screen are not the same wich I stored in the DIO card!!
Todd, could you tell me what I did wrong?
And again, many thanks for your message!!!!!

Parsing the data of the payload in XI and then based on the data sending it

Hi ,
I have to send the customer data to SAP using IDOCS.
What i have to do is to pass all the data related to sold to into SAP first and then send the shipto data.
the sold to and the shipto data will be recognised based on the qualifier present in the incmming file.
I am thinking of 2 alternatives.
1) I can process the data in SAP. i.e i will stop the idocs related to shipto till the time the sold to is created.
2) i was also thinking about stopping the shipto data in XI and then pass it to SAP once the whole sold to data has been sent across.
Can you please suggest how can I go aroung doing the 2nd approch
Thanks
Nikhil

Hi Nikhil,
You could use a BPM to do the 2nd approach. The BPM can have the following steps,
1. Receive Step
2. Switch Step
(based on the qualifier present in the incmming file)
2.1. Send Step - Sold to data
2.2. Send Step - Shipto data
You can make step 2.1 wait based on a condition. But you should be able to tell when to send shipto data.
Regards,
Naveen

Decisions based on the data acquisition in Labview

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