DIO - Single Line vs Port (U8) Write

I have a wierd situation:
I am using a NI 6509 Digital I/O card, with 4x digital outputs connected to P2.3 thru P2.6.
1. I setup a task to write to these lines using a group of global virtual channels - all done in MAX.
2. I have used this task/setup on previous occassions with good success.
3. Yesterday it stopped working.
4. Now the old task does not work.
5. I have reset the device (and PC) on multiple occassions
6. I created a "NEW" task which writes to the whole port at once (i.e. U8) and I can measure the output voltage changing fine (using DMM) when I run this VI.
7. So I know that the digital outputs are working... but when I try the old task again, it still does not work.
Can anyone please tell me of a reason why this behaviour might occur. I know that some DIO products can do port read/writes only.
I am suspicious that the device (our product) the DIO card is connected to might have been accidentally connected in such a way that there were two competing output signals/pins connected to the same wire.
Does this sound like a hardware fault?
Any suggestions muchly appreciated.
Thanks!
Solved!
Go to Solution.

Don't bother, I found the fault - the external hardware had been changed without me knowing.

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Execution/exit of DIO single read/write.vi

Hi all,
System - Windows NT4.0, LabView 7.0, PCI-DIO-96 card.
Info -
I am using the "DIO single read/write.vi" to update ports on a custom board. The Labview code has an outer For Loop that executes 64 times (to update the ports 64 times). Inside the loop is a sequence structure. The first sequence frame uses PPI B Port A of the DIO-96 in output Mode 0 (no handshake) to update one target port. The next frame uses PPI A Port A in output Mode 1 (handshake) to update a different target port. The DIO PPIs are always used in the same Mode and the same data direction.
Question 1 -
When the vi executes, does it look at the iteration input and leave the PPI config register alone if the iteration input is nonzero? Specifical
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Question 2 -
I need to wait for the handshake in the second sequence frame to complete before the sequence is exited. I assume that when the vi is used inside of a sequence, it is analagous to a subroutine call. Does the vi wait for the handshake to complete before returning? In other words, will the vi complete the handshake with my target port before the sequence frame is exited? If not, any suggestions on how to wait for the completion?
TIA - Charlie

Charlie,
Yes, if the iteration input to DIO Single Read/Write.vi is greater than zero, configuration will not take place. Furthermore, the VI will only return once execution has completed.
Good luck with your application.
Spencer S.

How to write single line text file

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Need to read text from FM 'BBP_PD_CONF_GETDETAIL' in a single line of ALV output

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Writing to a file in Single Line doesn't work

DECLARE
FileHandler UTL_FILE.FILE_TYPE;
cursor c1 is
SELECT DISTINCT address_attribute9 address_attribute9
FROM ar.ra_customers_interface_all;
BEGIN
fileHandler := UTL_FILE.FOPEN('/u03/sqlcom/outbound', 'Error_Records.txt', 'w');
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EXCEPTION
WHEN utl_file.invalid_path THEN
raise_application_error(-20000, 'Invalid path file or path not in INIT.ORA.');
END;
Following error message is appearing
Exception Occurred:ORA-29285: file write error
PL/SQL procedure successfully completed.
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Modified the code as following and it worked:
set serveroutput on
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errorlength NUMBER;
filehandle utl_file.file_type;
counter NUMBER := 1;
remainder NUMBER;
buflen NUMBER := 32000;
cursor c1 is
SELECT DISTINCT address_attribute9 address_attribute9
FROM ar.ra_customers_interface_all;
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DBMS_LOB.CREATETEMPORARY(errorblob, true,dbms_lob.session);
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dbms_lob.append(errorblob, utl_raw.cast_to_raw(''''||rec.address_attribute9||''''||','));
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filehandle := utl_file.fopen('/u03/sqlcom/outbound', 'Error_Records.txt', 'wb');
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utl_file.fflush(filehandle);
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I am following a request to write C++ code for a label that contains several text elements in one single line, varying by font, size, color.... Ok, that can be done easily in GDI+ by measuring each element's width and then execute a DrawString
for each of the text elements starting at its calculated position.
So far, I failed miserably.
The horizontal text positions did not appear to be correct. I reverted now to very simple text width measuring tests where the results are still puzzling.
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Test 2 (GDI+): Use of MeasureCharacterRanges
Used the same font as for the first test. The width of "MM" is now exactly double of the width of "M". But: The width of the "M" ist lightyears away from the measurement result in the first test.
Test 3 (GDI): Use of GetCharABCWidthsFloat
Attempted to create a GDI font as close as possible to the GDI+ font in the previous tests. Unfortunately, this third test shows results which do not match the previous results at all.
I am appending the full example here; the results I found during the debug session have been added as comments:
void ApplWindow_TextDrawTest(HDC hDC)
Gdiplus::Graphics *G = new Gdiplus::Graphics(hDC);
G->SetTextRenderingHint(TextRenderingHint::TextRenderingHintClearTypeGridFit);
Gdiplus::StringFormat MyFormat;
MyFormat.SetAlignment(Gdiplus::StringAlignment::StringAlignmentNear);
MyFormat.SetFormatFlags(Gdiplus::StringFormatFlags::StringFormatFlagsNoWrap);
Gdiplus::Font TextFont(L"Calibri", 36, Gdiplus::FontStyle::FontStyleBold, Gdiplus::Unit::UnitPixel);
const wchar_t *Text1M = L"M";
Gdiplus::PointF TextOrigin1M(0, 0);
Gdiplus::RectF TextBounds1M;
const wchar_t *Text2M = L"MM";
Gdiplus::PointF TextOrigin2M(0, 50);
Gdiplus::RectF TextBounds2M;
//--- Test #1: using MeasureString ----------
G->MeasureString(Text1M, (INT)wcslen(Text1M), &TextFont, TextOrigin1M, &MyFormat, &TextBounds1M);
G->MeasureString(Text2M, (INT)wcslen(Text2M), &TextFont, TextOrigin2M, &MyFormat, &TextBounds2M);
//--- Results: Text 1 Width= 44.414 ("M")
//--- Text 2 Width= 76.828 ("MM")
//--- Test #2: using MeasureCharacterRanges ----------
Gdiplus::Status RCode;
Gdiplus::RectF LayoutRect(0, 0, 1000, 100);
Gdiplus::Region RegionsList[3];
Gdiplus::CharacterRange CRanges[3];
CRanges[0].First = 0; CRanges[0].Length = 1;
CRanges[1].First = 1; CRanges[1].Length = 1;
CRanges[2].First = 0; CRanges[2].Length = 2;
MyFormat.SetMeasurableCharacterRanges(3, CRanges);
G->MeasureCharacterRanges(Text2M, (INT)wcslen(Text2M), &TextFont, LayoutRect, &MyFormat, 3, RegionsList);
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RCode = RegionsList[1].GetBounds(&TextBounds1M, G); // Result: Text 1 Width = 32.000 ("M"; the second char)
RCode = RegionsList[2].GetBounds(&TextBounds2M, G); // Result: Text 2 Width = 64.000 ("MM")
//--- Test #3: using the good old GDI ----------
int MapModeResult = SetMapMode(hDC, MM_TEXT); // MM_TEXT is equivalent to Unit::UnitPixel?
HFONT TextFont3 = CreateFont(36, 0, 0, 0, FW_BOLD, false, false, false, ANSI_CHARSET, OUT_TT_ONLY_PRECIS, CLIP_DEFAULT_PRECIS, CLEARTYPE_QUALITY, VARIABLE_PITCH | FF_DONTCARE, L"Calibri");
HGDIOBJ PrevFont = SelectObject(hDC, TextFont3);
ABCFLOAT ABCCharData;
BOOL RFlg = GetCharABCWidthsFloat(hDC, (UINT)'M', (UINT)'M', &ABCCharData); // Results: abcfA = 2.000; abcfB = 22.000; abcfC = 2.000
//--- End of Test ---
delete G;
Does anybody have an idea why I get so different results?
Thanks in advance.

This is a development question and should be directed to a forum that assists in coding. The forum you posted to is for Windows 7 related questions.
Sorry I cannot help you
Don't forget to mark the post that solved your issue as "Answered." By marking the Answer you are enabling users with similar issues to find what helped you. Lewis Renwick - IT Professional

PBDOM : Exporting to XML file gives a single line

I've been starting developing with PowerBuilder 12.5 a few weeks ago. I had to write some XML files, so I got familiar with the PBDOM library.
I can build a lot of different things, it's very nice, but one thing still bothers me :
In the output file, the whole XML is written on a single line.
I use the SaveDocument function.
For example, here is some code :
PBDOM_Document doc
PBDOM_Element noderoot, node1, node11, node12
doc = CREATE PBDOM_Document
doc.NewDocument("NodeRoot")
noderoot = doc.GetRootElement()
node1 = CREATE PBDOM_Element
node1.SetName("Node1")
noderoot.AddContent(node1)
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node11.SetName("Node11")
node11.AddContent("Here is a value")
node1.AddContent(node11)
node12 = CREATE PBDOM_ELEMENT
node12.SetName("Node12")
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node1.AddContent(node12)
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<NodeRoot><Node1 Attr="AttrValue"><Node11>Here is a value</Node11><Node12>Here is another value</Node12></Node1></NodeRoot>
Whereas I wanted :
<NodeRoot> <Node1 Attr="AttrValue"> <Node11>Here is a value</Node11> <Node12>Here is another value</Node12> </Node1> </NodeRoot>
With the notepad++ XML tools plugin, I can use the "pretty print" function to get this nice representation. But I would like my file to be formatted this way from the beginning. I noticed that the "line ending" was set to UNIX format (indicator on bottom right of the window), but I'm working on Windows. When I use the menu to convert it to Windows format (CR+LF), it changes this indicator, but the code stays on one single line.
Is there a way to tell PBDOM to export the XML file with a nice output ?
Thank you !
Notes :
- Opening the XML file with Internet Explorer or Google Chrome gives me a nice vizualisation, with indentation, line breaks...
- Adding a <?xml version="1.0" encoding="ISO-8859-1" ?> does not help (I've been doing it while exporting some more complex files, but I still get the output on one line...)

Here is a very simple powerbuilder example. It uses MSXML instead of PBDOM. See my comments for hints how to use it with PBDOM.
oleobject lole_dom, lole_root, lole_element1, lole_element11, lole_element12
oleobject lole_Writer, lole_saxreader
string ls_result
// build DOM (you don't need this if you use PBDOM)
lole_dom = create oleobject
lole_dom.ConnectToNewObject ("Msxml2.DOMDocument")
lole_root = lole_dom.CreateElement ("NodeRoot")
lole_dom.documentElement = lole_root
lole_element1 = lole_dom.CreateElement("Node1")
lole_root.AppendChild(lole_element1)
lole_element1.SetAttribute("Attr", "AttrValue")
lole_element11 = lole_dom.CreateElement("Node11")
lole_element11.AppendChild (lole_dom.CreateTextNode("Here is a value"))
lole_element1.AppendChild(lole_element11)
lole_element12 = lole_dom.CreateElement("Node12")
lole_element12.AppendChild (lole_dom.CreateTextNode("Here is another value"))
lole_element1.AppendChild(lole_element12)
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//lole_dom.save ("d:\testxml.xml")
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lole_Writer = create oleobject
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lole_saxreader.ConnectToNewObject ("MSXML2.SAXXMLReader")
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lole_Writer.indent = True
lole_saxreader.contentHandler = lole_Writer
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// so you can also use the PBDOM output directly
lole_saxreader.parse (lole_dom)
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ls_Result = lole_Writer.output
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lole_writer.Disconnectobject( )
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DESTROY lole_writer
DESTROY lole_saxreader
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Limit to Single Line Not Working

I am using LV 6.0. It appears that the String Control property "Limit to
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> I have a String control on my front panel. The pop-up menu has "Limit to
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> think this is how it should work. Any ideas? Thanks...Ed
>
The Limit to Single Line limits what the user can do with the
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a paste operation. Looki
ng at it on my computer, it prevents
the carriage return as it should, and when too many characters
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Greg McKaskle

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Looks like it was too good to be true. A smartphone line that had unlimited talk&text plus 250mb of data for very light users. Its been taken off the website,
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Help me in Converting textarea msg to single line string

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Hi,
i did not understood your problem. javascript supports \n character processing. so you should not get any error. Do one thing write a javascript function, that replaces all \n with "". this will solve your problem
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How to stop auto from-feed on a dot matrix printer for printing only a single line of data at a frequency of 30 seconds

Hello friends
In a particular application, it is required to print a single line of data on a dot matrix printer (continuous sheets) at a frequency of 30 seconds. That is printing is to be carried out line-by-line on the same form without a form feed.
We are facing a problem of a form feed after printing of each line. Kindly help me to solve this problem of auto form-feed. How to continuously print at a regular interval without from-feeding.
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Is this printer connected to a network?
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Add Internal Table Multiple Lines into Single Line

Hi Gurus,
Before post this thread, i hav searched SDN but i could not find the exact solution.
I hav an internal table, i want to add the records of this internal table into single line (string variable), separated by tab operator.
can any one give me suggestions to solve this?
Thanks
Meher

Hi,
Program should be some thing like below:
REPORT ZTEST36.
*-- test program to concatenate internal table to string.
DATA:STRING TYPE STRING.
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GT_ITAB-WEEK = 'WEDNESDAY'.
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CLEAR GT_ITAB.
GT_ITAB-WEEK = 'FRIDAY'.
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CLEAR GT_ITAB.
GT_ITAB-WEEK = 'SATURDAY'.
APPEND GT_ITAB.
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LOOP AT GT_ITAB.
CONCATENATE STRING '/' GT_ITAB INTO STRING.
ENDLOOP.
WRITE: / STRING.
Regards
Ramesh.
Moderator message - Ramesh - please use code tags
Edited by: Rob Burbank on Jul 3, 2009 12:26 PM

ICal only displays a single line for entries in month view.

This means I can't see what my diary entries refer to. Can I change it to show two lines or the full entry, as iCal did in Snow Leopard?

Hi Guys, thanks for getting back to me.
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Below is how CS4 displays borders with two lines which I find difficult to decipher:
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DIO - Single Line vs Port (U8) Write

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