event data for the asynchronous timer
My application uses an asynchronous timer to read analog and digital signals that are then loaded in a thread safe queue. The main part of the application unloads the queue, displays values and updates the locations of graph and also writes data to a file on disk.
Asynchronous timer runs every 40 millisecs, show various updates run 5 times per second and the data is written to a file every second.
Among the data elements is an entry SSI of lifting height, which, at this data rate should be increased to 25mm per second, or 1 mm each scan. I get a lot of variations in this reading, ranging from 0.3 mm to 1.7 mm and these variations seem to occur during updates of the display or the data file is written. I thought that using the async timer I would be safe from Windows Update problems, it runs in a separate thread.
An earlier version used a timer Panel in which I was able to use the event data to show that timer interruptions were indeed affected by the activity of the screen. The async timer event data seem to zeros, whereas the event data of timer Panel that held a version of the hour and the time elapsed since the last interruption of the timer. How can I check that the async timer is interrupted at the right time?
Reminder timer Asyncronus has the same exact structure of the timers UIR one, except for the first parameter, an integer that in the reminder timer UIR, holds the handle of the Panel the timer while it is reserved in the callback of the asynchronous timer. This means that the eventData parameter holds the information on the time elapsed in th eprogram, passed as pointers to values double. To read this information, you must operate this way:
totalTime double, timeFromLastTimer;
totalTime = *(double *) eventData1; Time to start the program
timeFromLastTimer = *(double *) eventData2; The last reminder of timer time
Tags: NI Software
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Truncated. check the log file full stacktrace
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Truncated. check the log file stacktrac full
Help, please.
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1. for the first time in the excel sheet data loaded into record block.
2. If I once again to open the screen and try to import another excel file the record block appers to be empty and no error thrown
Comment:
1. second time when I try to download the excel sheet, the code ends in "Client_OLE2.create_obj('Excel.Application')" and not further progress (on track by putting the message in the code)
Code:
DECLARE
application Client_OLE2. Obj_Type;
Client_OLE2 workbooks. Obj_Type;
workbook Client_OLE2. Obj_Type;
Client_OLE2 spreadsheets. Obj_Type;
worksheet Client_OLE2. Obj_Type;
worksheet2 Client_OLE2. Obj_Type;
cell Client_OLE2. OBJ_TYPE;
Client_OLE2 args. OBJ_TYPE;
cell_value varchar2 (100);
num_wrkshts NUMBER;
wksht_name VARCHAR2 (250);
EOD Boolean: = false;
j integer: = 1;
v_fName VARCHAR2 (250);
BEGIN
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v_fName: = WebUtil_File.File_Open_Dialog)
directory_name = > "C:\". »
-, file_name = > Get_Form_Property (:System.Current_form, Form_Name) |'. XLS
, File_Filter = > null
, Title = > 'Select customer filename to open.'
);IF (v_fName IS NOT NULL) THEN
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-- --------------------------------------------------------------
-Open the OLE application
application: = Client_OLE2.create_obj ('Excel.Application');
-Keep the hidden application
Client_OLE2.set_property (application, 'Visible ','false ');
workbooks: = Client_OLE2. Get_Obj_Property (application "Filing cabinets");
args: = Client_OLE2. CREATE_ARGLIST;
-Open the selected file
-- ----------------------
Client_OLE2.add_arg (args, v_fName);
workbook: = Client_OLE2. GET_OBJ_PROPERTY (Workbooks, 'Open', args);
Client_OLE2.destroy_arglist (args);
worksheets: = Client_OLE2. GET_OBJ_PROPERTY (workbook, 'Worksheets');
-Get the number of spreadsheets
-- ------------------------
num_wrkshts: = Client_OLE2. GET_NUM_PROPERTY (worksheets, 'Count');
worksheet: = Client_OLE2. GET_OBJ_PROPERTY (application, 'activesheet');
-Go to the first record
go_block ('planets');
premier_enregistrement;
loop
If: system.record_status <>'NEW' then
create_record;
end if;
When the exit NEM;
for 1.3 k loop - 3 frames / record
args: = Client_OLE2.create_arglist;
Client_OLE2.add_arg (args, j);
Client_OLE2.add_arg (args, k);
cell: = Client_OLE2.get_obj_property (spreadsheet calculation, 'Cells', args);
Client_OLE2.destroy_arglist (args);
cell_value: = Client_OLE2.get_char_property (cell, 'Value');
If upper (cell_value) = "NEM" then
Nem: = true;
Message ('end of data');
"exit";
end if;
-Could be done in this way also-->
/ * If k = 1 then
: dept.deptno: = cell_value;
end if;
If k = 2 then
: dept.dname: = cell_value;
end if;
If k = 3 then
: dept.loc: = cell_value;
end if;
*/
-Less code in this way - >
Copy (cell_value, name_in ('system.cursor_item'));
next_item;
end loop; -for
j: = j + 1;
end loop;-main loop
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IF (cell IS NOT NULL) THEN
Client_OLE2.release_obj (cell);
END IF;
IF (spreadsheet IS NOT NULL) THEN
Client_OLE2.release_obj (Worksheet);
END IF;
IF (spreadsheets IS NOT NULL) THEN
Client_OLE2.release_obj (Worksheets);
END IF;
IF (worksheet2 IS NOT NULL) THEN
Client_OLE2.release_obj (worksheet2);
END IF;
IF (workbook IS NOT NULL) THEN
Client_OLE2.release_obj (Workbook);
END IF;
IF (workbooks IS NOT NULL) THEN
Client_OLE2.release_obj (Workbooks);
END IF;
Client_OLE2. Invoke (application, 'Quit');
Client_OLE2.release_obj (application);
ON THE OTHER
Message ("no file selected.'");
message(' ');
RAISE Form_Trigger_Failure;
END IF;
END;Any advice will be appreciated...
Thank you!!!
Hello
personally, I release the cell object as soon as the value is written in a variable and not in a procedure that closes the file. Note that there are many cells read (so you should relase each cell individually).
The publication of the application is such:
Procedure CloseApplication is
Begin
CLIENT_ole2.release_obj (Workbook);
CLIENT_ole2.release_obj (Workbooks);
CLIENT_ole2. Invoke (application, 'Quit');
CLIENT_ole2.release_obj (application);
End CloseApplication;
Greetings,
SIM
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