Switching between two tables in the front panels

Hi
I am working on an application,which has two "Tables"
in the front panel. Both the tables do get updated
simultaneously from the same test,
Table-A displays
A short summary report while the test is beign executed, and result.
Table-B displays
A detailed report of the test and its condition and parameter
along with results.
My front end is a simple display table, along with couple of
Button controls,like "START","ABORT","DeTAIL DISPLAY" and "QUIT"
ofcourse.
All these buttons are used in Event driven case structures except
"DeTAIL DISPLAY"
as the execution beigns, on the press of start button,
there are number of tests in which i have to pass, parameters to
DLL and get back the result parameters.
The end customer requires to switch the display between the TABLE-A & TABLE-B during execution.
so i have a, seperate while loop,where in a case structure is wired to "DeTAIL DISPLAY"
button, and if true, visible is set to true to TABLE-B, and false to TABLE-A,
and vis-versa. as per the logic this while loop should take care of switching between the
tables.
The other while loop Takes care of the entire test.
My problem is that, while i execute the switching of tables are not fast.
it waits till the tests are over,and event case structure is in idle state, and then switches to the other table.
Also some times i am unable to click on button"DeTAIL DISPLAY", as the event control
case structure, is not responding till end of the execution.
How to over come this problem
rags

Hi,
Have you tried using notifiers in master slave architecture?
check this out
Attachments:
Notifier.vi ‏45 KB

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Hi
Your vi is in 2009 version, which i am unable to open in 8.6
However, if you want your data to be saved in excel sheet, here is the VI
Somil Gautam
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Certified LabVIEW Architect
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"... after all, He's not a tame lion..."
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Need to find the Difference between two table

Hello ,
I have stucked in program as below scenario:-
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Example TableA
Col1 col2 col3 col4 col5.... col50
10 ABC 2001 EE 444 TT
40 XYZ 3002 RR 445 TT3
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Col1 col2 col3 col4 col5.... col50
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Thanx friends for all your efforts
I have a sample code for the same,this will compare the two tables for single row in each table .
what r the modification needed for the multiple rows of values in the two tables??
Please suggest!!
CREATE OR REPLACE PROCEDURE test_compare
IS
TYPE t_col
IS
TABLE OF VARCHAR2 (30)
INDEX BY PLS_INTEGER;
l_col t_col;
j NUMBER := 0;
l_sql VARCHAR2 (2000);
col1 VARCHAR2 (30);
col2 VARCHAR2 (30);
val1 NUMBER;
val2 NUMBER;
status VARCHAR2 (30);
CURSOR c1
IS
SELECT column_id, column_name
FROM all_tab_columns
WHERE table_name = 'TEST1';
BEGIN
FOR i IN c1
LOOP
j := j + 1;
l_col (j) := i.column_name;
END LOOP;
FOR k IN 1 .. j
LOOP
l_sql :=
'SELECT '
|| ''''
|| l_col (k)
|| ''''
|| ', '
|| 'TEST2.'
|| l_col (k)
|| ', '
|| ''''
|| l_col (k)
|| ''''
|| ', '
|| 'TEST1.'
|| l_col (k )
|| ', '
|| 'DECODE(TEST2.'
|| l_col (k)
|| ' -TEST1.'
|| l_col (k)
|| ', 0, ''NO CHANGE'', ''CHANGED'') FROM TEST2, TEST1';
EXECUTE IMMEDIATE l_sql INTO col1, val1,col2, val2, status;
IF status = 'CHANGED'
THEN
DBMS_OUTPUT.put_line( 'TEST2.'
|| col1
|| '='
|| val1
|| ', TEST1.'
|| col2
|| '='
|| val2
|| ', '
|| status);
END IF;
END LOOP;
EXCEPTION
WHEN OTHERS
THEN
DBMS_OUTPUT.put_line ('Error:- ' || SQLERRM);
END;
/

How do reduce the space between the front panel and the display area

I am trying to reduce the space between the front panel and display area but i am not able to reduce the space

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Lacking that, I will guess.
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Well that's my guess!
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you could try something similar to this, for each table pair that you want to compare:
SELECT 'TABLE_A has these columns that are not in TABLE_B', DIFF.*
FROM (
        SELECT COLUMN_NAME, DATA_TYPE, DATA_LENGTH
          FROM all_tab_columns
         WHERE table_name = 'TABLE_A'
         MINUS
        SELECT COLUMN_NAME, DATA_TYPE, DATA_LENGTH
          FROM all_tab_columns
         WHERE table_name = 'TABLE_B'
      ) DIFF
UNION
SELECT 'TABLE_B has these columns that are not in TABLE_A', DIFF.*
FROM (
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         WHERE table_name = 'TABLE_B'
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Query the data between two tables

Need help for query the data between two tables
Table 1: Time sheet
P.ID      P.Name EmpID HoursSpend DateTime
c12234  Test      25        4                06/12/2013
c12234  Test      25        7                06/13/2013
c12234  Test      25        8                06/15/2013
c12234  Test      5          3                06/21/2013
c12234  Test      2          5               07/15/2013
c12234  Test      25        4               07/21/2013
Table 2: cost table
EmpID FromDate       ToDate         Rate
25         05/01/2013    06/30/2013    250
2         04/01/2013    05/31/2013      150
25         07/01/2013     09/30/2013    300
Output
P.ID      P.Name EmpID HoursSpend DateTime      Rate   Total (HoursSond x Rate)
c12234  Test      25        4                06/12/2013    250     1000 (4*250)
c12234  Test      25        7                06/13/2013    250      1750
c12234  Test      25        8                06/15/2013    250
2000
c12234  Test      25        4              07/21/2013     300
1200
c12234  Test      2          5              07/15/2013    150
750
===========================================
Total                          28
6700
============================================
Here EmpID =2 don't have rate in the cost table on july month should be pick from last entry from cost table.

Hi Gopal,
According to your description, it seems that the output needn’t include the row when EmpID=2. Because the DateTime for it in Table1 doesn’t included between FromDate column and ToDate column. After testing the issue in my environment, we can refer to the
query like below to achieve your requirement:
SELECT time.*,cost.EmpID,cost.Rate,(time.HoursSpend * cost.Rate)as [Total (HoursSond x Rate)]
FROM [Time sheet] as time
INNER JOIN
[cost table]as cost
ON time.EmpID = cost.EmpID
AND time.DateTime BETWEEN cost.FromDate AND cost.ToDate
If there are any other questions, please feel free to ask.
Thanks,
Katherine Xiong
Katherine Xiong
TechNet Community Support

Manually controlling the front panel without a keyboard

Hi all,
In my application I constantly switch the keyboard and the mouse between two computers (using a KVM switch), but would like to continuously be able to control a numeric control on the front panel of one of the computers (running LabView 6.1). Even if I wasn't switching, the use of the keyboard is awkward, since the control needs to be fairly effortless, quick and smooth. After searching a bit for a knob/wheel/dial type of controller, I was only able to find the new PowerMate (Griffin Technology) as a reasonable candidate, and have yet to purchase and try to integrate it. I'm also not sure how it will work with LabView.
Am I overlooking a simple solution?
Anyone have some experience with the Pow
erMate?
many thanks, Shy

Another option: Create a simple TCP/IP application in VB or LabVIEW to
control the control.
That is,
Monitor for incoming TCP/IP data in the VI with the control.
If on your other computer you wish to make a change, just use your
little application to do it, and send the value to the main app.
Very cheap to do =)
Another option 2:
Grab the available Parallel Port digital interface design specifics for
labview. Create yourself a simple binary switch interface. Assign 4
bits for up and 4 bits for down.
That is,
sw1 = -10
sw2 = -1
sw3 = +1
sw4 = +10
Read in the digital input from the parallel port and increment your
control accordingly. You can obviously assign any values you want to
the digital inputs.
Hope this helps guide you a little bit!
Sincerel
y,
Jason G Richmond
Project Engineer II and LVAAD Instructor
VI Engineering
[email protected] (domain should be vieng.com (no A's))
sshoham wrote:
> Hi all,
>
> In my application I constantly switch the keyboard and the mouse
> between two computers (using a KVM switch), but would like to
> continuously be able to control a numeric control on the front panel
> of one of the computers (running LabView 6.1). Even if I wasn't
> switching, the use of the keyboard is awkward, since the control needs
> to be fairly effortless, quick and smooth. After searching a bit for a
> knob/wheel/dial type of controller, I was only able to find the new
> PowerMate (Griffin Technology) as a reasonable candidate, and have yet
> to purchase and try to integrate it. I'm also not sure how it will
> work with LabView.
> Am I overlooking a simple solution?
> Anyone have some experience with the PowerMate?
>
> many thanks, Shy

What is the best way to zero a 'custom voltage with excitation' sensor from the front panel?

What is the best way to zero a 'custom voltage with excitation' sensor from the front panel?
Thanks for any help

Hi Donavan,
There are two options for zeroing with the NI-9237. You can perform offset nulling and shunt calibration with a strain task, or if you use custom excitation you can use software compensation.
See the Bridge Balancing, Offset Nulling section in the Load, Force, and Torque Measurements tutorial. Take a measurement before the strain is applied and subtract this from all subsequent measurements. See the above tutorial to consider the tradeoff in accuracy between these two options.
Hope this helps,
Jennifer O.
Applications Engineer
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How to switch between two query in Web templete.

Hi all,
Here i am facing problem to switch between two query in web template by using one 'table' web item. is there any way to use hyperlink 'SAP_BW_URL' and we can switch to query. here i am using these HTML code..
<table><tr><td class="SAPBEXBtnStdBorder" cellspacing="0" cellpadding="0" border="0"><tr><td>
<table><tr><td class="sapbexbtnstd" ><A href="<SAP_BW_URL cmd='reset_item' item='table_data' query_ID='ZSD_ZSD_M01_Q20' apply_cmd_on_target= "X">" >Switch to other query</A></td></tr></table>
but i am not getting correct functionality.
please help me to solve this problem.
I know the best way to say thanks in SDN.
thanks
Kiran Patel

Kiran,
Use the web api reset_data_provider as links or in select option in HTML.
   Onchange event of this select option should call JAVASCRIPT method and
   this in turn resets the current dataprovider to your concerned one.
   How to change graphs:
   The graph item has the default data provider:
   <object>
         <param name="OWNER" value="SAP_BW"/>
         <param name="CMD" value="GET_ITEM"/>
         <param name="NAME" value="CHART_1"/>
         <param name="ITEM_CLASS" value="CL_RSR_WWW_ITEM_CHART"/>
         <param name="DATA_PROVIDER" value="DATAPROVIDER_1"/>
         <param name="TMP_CHART_DATA_HANDLE" value="IIP_49MOXB0UVNOMM6JOZMZU7QO21"/>
         ITEM:            CHART_1
   </object>
So if you change the DATAPROVIDER_1 using RESET_DATA_PROVIDER to your concerned DP, this changes chart as well !!
   Please use this method and refer to sample code for Onchange Event on SELECT OPTION:
<HTML>
<HEAD>
<script>
function callDP() {
     if(document.forms[0].dp.value == "1") {
        //form your URL here..
       url = SAP_BW_URL_Get() + "&CMD=RESET_DATA_PROVIDER&DATA_PROVIDER_1=..&...";
        SAPBWOpenURL(url);
        //or docuemtn.location.href = url..
        //etc..
</script>
</HEAD>
<BODY>
<form>
<select name="dp" onChange="javascript:callDP();">
<option value="1">1</option>
<option value="2">2</option>
</select>
</form>
</BODY>
</HTML>
HOPE THIS HELPS !!!

How to resize the front panel to fit different resolutions

I m using LabVIEW 8.2 on Windows XP SP2
I've tried both “maintain proportions of window for different monitor resolutions” and “scale all objects on front panel as the window resizes” selected but just messed up everything when i switched to another different resolution. It's annoying since I'm using 22 inch monitor to do the coding but the user supposed to run it on laptop or wince.
Any solutions to it?
Thx in advance.

Thank you all. Following is the reply from NI support. I think the best way is to edit vi in low resolution.
One of the easiest ways to tackle varying screen resolutions is to design
the front panel to the lowest resolution that you expect it to run on. It
should then look acceptable on any screen larger than that.
However, you can get a bit more tricky by programmatically determining the
computer's screen resolution and then dynamically changing the size of your
front panel objects. Use an Application Property Node and select
Display>>All Monitors to return the current screen size. Then, according to
the screen size, you can size the control or indicator programmatically
using the Size property node for your front panel objects.
Ultimately, these issues have often been a result of font size issues.
Specifically, this can be a problem when two machines have different
desktop theme/font settings. If your objects are coming out in different
sizes on different computers, you can setup up LabVIEW to use the same font
on different systems by modifying the .INI file.
The easiest way is to do this: use Tools->Options->Fonts from the LabVIEW
GUI. You can then set the system fonts to anything you want. After you
have done this on one machine, open your INI file (it is in the same
directory as the LabVIEW executable) with any text editor and copy the
corresponding entries to another file. Add these entries to the INI files
on any machines you want to lock to font. You will probably run into
issues if you are supporting different platforms (Windows and Mac or Mac
and Linux, for example), since the fonts you want may not be available on
both platforms. There are Windows fonts available for both Mac and Linux
platforms, so this can be somewhat ameliorated.
This is all I can think of, but that's not to say these are the only
solutions. You might check the Discussion Forums, as many of our LabVIEW
Champions have tackled similar issues and offer their expertise as well.
Here's just a few threads that I'd like to refer you to:
How to make the size of VI and controls unchanged irrespective of the
resolution?
http://forums.ni.com/ni/board/message?board.id=170&message.id=273613&requireLogin=False
How to program the front panel size to fit different monitor resolution?
http://forums.ni.com/ni/board/message?board.id=170&message.id=87160&requireLogin=False
I hope this discussion helps you along the way in your application
development. Please let me know if you have any further questions/comments
and I would be happy to discuss them with you.
Otherwise, it was a pleasure assisting you and thank you for choosing
National Instruments.

I have a VI and an attched .txt data file. Now I want to read the data from the .txt file and display it as an array in the front panel. But the result is not right. Any help?

I have a VI and an attched .txt data file. Now I want to read the data from the .txt file and display it as an array in the front panel. But the result is not right. Any help?
Attachments:
try2.txt ‏2 KB
read_array.vi ‏21 KB

The problem is in the delimiters in your text file. By default, Read From Spreadsheet File.vi expects a tab delimited file. You can specify a delimiter (like a space), but Read From Spreadsheet File.vi has a problem with repeated delimiters: if you specify a single space as a delimiter and Read From Spreadsheet File.vi finds two spaces back-to-back, it stops reading that line. Your file (as I got it from your earlier post) is delimited by 4 spaces.
Here are some of your choices to fix your problem.
1. Change the source file to a tab delimited file. Your VI will then run as is.
2. Change the source file to be delimited by a single space (rather than 4), then wire a string constant containing one space to the delimiter input of Read From Spreadsheet File.vi.
3. Wire a string constant containing 4 spaces to the delimiter input of Read From Spreadsheet File.vi. Then your text file will run as is.
Depending on where your text file comes from (see more comments below), I'd vote for choice 1: a tab delimited text file. It's the most common text output of spreadsheet programs.
Comments for choices 1 and 2: Where does the text file come from? Is it automatically generated or manually generated? Will it be generated multiple times or just once? If it's manually generated or generated just once, you can use any text editor to change 4 spaces to a tab or to a single space. Note: if you want to change it to a tab delimited file, you can't enter a tab directly into a box in the search & replace dialog of many programs like notepad, but you can do a cut and paste. Before you start your search and replace (just in the text window of the editor), press tab. A tab character will be entered. Press Shift-LeftArrow (not Backspace) to highlight the tab character. Press Ctrl-X to cut the tab character. Start your search and replace (Ctrl-H in notepad in Windows 2000). Click into the Find What box. Enter four spaces. Click into the Replace With box. Press Ctrl-V to paste the tab character. And another thing: older versions of notepad don't have search and replace. Use any editor or word processor that does.

Switching between two tables in the front panels

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