What is the best way to save data from GPIB Device in a file?

HI!
I have a Keithley SourceMeter and want to save readings in a File along with settings on the front panel and timestamps plus several other infos. What is the best way to do this? Which file type? Any recommendations or hints could help me?
Thanks

Hi Andy,
There are 3 main file formats that you can consider writing your data out to in LabVIEW:
ASCII
Binary
Datalog
ASCII
ASCII files are useful because every operating system and almost every application can read/write ASCII format files. Use ASCII files when:
Other users or applications will need to access the data file.
You will not need to perform random access file I/O
File I/O speed is not crucial
Disk space is not crucial
Examples within LabVIEW Example Finder: Fundamentals >> File Input and Output >> Write to Text File.vi and Read from Text File.vi
Binary
Binary byte stream files are more specific to data storage and retrieval. Use b
inary files when:
File I/O will remain in LabVIEW only -- no other applications will be needing to write/read that file. There is no standard formatting for binary files and thus other applications or operating systems may be unable to read the file.
Files are smaller than ASCII files
Easier and faster random access to data
Examples within LabVIEW Example Finder: Fundamentals >> File Input and Output >> Write Binary File.vi and Read Binary File.vi
Datalog
When to use datalog:
If you need to record data with a mixture of types, it can be cumbersome to convert everything to ASCII or to keep track of the binary formatting.
Datalog format is binary and internal to LabVIEW, so again only use this format if no other applications or operating systems will be needing to perform file I/O on the file.
Examples within LabVIEW Example Finder: Fundamentals >> File Input and Output >> Write Datalog File
Example.vi and Read Datalog File Example.vi
Good luck!
Kileen C.
Applications Engineer
National Instruments

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LAST_NAME VARCHAR2(45)
FIRST_NAME VARCHAR2(45)
MIDDLE_INITIAL VARCHAR2(1)
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THANKS in advance!!!!

Here's quick and dirty example probably a better way to do it, but this is what I came up with quickly.
My table looks like this:
MAIL_ID LAST FIRST PHONE REMARKS
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The code below will concatenate the remarks column from the rows, and delete the 135 and 201 rows, then update the 123 row with the concatenated remarks.
declare
l_remarks varchar2(500);
l_min_mail_id number;
begin
select min(mail_id) into l_min_mail_id
from test
group by last, first, phone;
select remarks into l_remarks from test where mail_id = l_min_mail_id;
for i in (select mail_id, remarks from test
     where last = 'Ruff'
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          and mail_id <> l_min_mail_id)
loop
l_remarks := l_remarks||','||i.remarks;
delete from test where mail_id = i.mail_id;
end loop;
update test set remarks = l_remarks where mail_id = l_min_mail_id;
commit;
end;
Hope this helps.

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<table id="tbl-m">
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            <td class="tbl-p-w-d-l-p">0</td>
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            <td class="tbl-p-w-d-l-p">0</td>
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            <td class="tbl-p-w-d-l-p">0</td>
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            <td class="tbl-p-w-d-l-p">0</td>
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            <td class="tbl-p-w-d-l-p">0</td>
            <td class="tbl-p-w-d-l-p">0</td>
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            <td class="tbl-p-w-d-l-p">0</td>
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            <td class="tbl-p-w-d-l-p">0</td>
            <td class="tbl-p-w-d-l-p">0</td>
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            <td class="tbl-p-w-d-l-p">0</td>
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            <td class="tbl-team-width">Team Name 9</td>
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            <td class="tbl-p-w-d-l-p">0</td>
            <td class="tbl-p-w-d-l-p">0</td>
            <td class="tbl-p-w-d-l-p">0</td>
            <td class="tbl-p-w-d-l-p">0</td>
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            <td class="tbl-pos-width">10</td>
            <td class="tbl-team-width">Team Name 10</td>
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            <td class="tbl-p-w-d-l-p">0</td>
            <td class="tbl-p-w-d-l-p">0</td>
            <td class="tbl-p-w-d-l-p">0</td>
            <td class="tbl-p-w-d-l-p">0</td>
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            <td class="tbl-team-width">Team Name 11</td>
            <td class="tbl-p-w-d-l-p">0</td>
            <td class="tbl-p-w-d-l-p">0</td>
            <td class="tbl-p-w-d-l-p">0</td>
            <td class="tbl-p-w-d-l-p">0</td>
            <td class="tbl-p-w-d-l-p">0</td>
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          <tr class="tbl-row-a">
            <td class="tbl-pos-width">12</td>
            <td class="tbl-team-width">Team Name 12</td>
            <td class="tbl-p-w-d-l-p">0</td>
            <td class="tbl-p-w-d-l-p">0</td>
            <td class="tbl-p-w-d-l-p">0</td>
            <td class="tbl-p-w-d-l-p">0</td>
            <td class="tbl-p-w-d-l-p">0</td>
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            <td class="tbl-team-width">Team Name 13</td>
            <td class="tbl-p-w-d-l-p">0</td>
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            <td class="tbl-p-w-d-l-p">0</td>
            <td class="tbl-p-w-d-l-p">0</td>
            <td class="tbl-p-w-d-l-p">0</td>
          </tr>
          <tr class="tbl-row-a">
            <td class="tbl-pos-width">14</td>
            <td class="tbl-team-width">Team Name 14</td>
            <td class="tbl-p-w-d-l-p">0</td>
            <td class="tbl-p-w-d-l-p">0</td>
            <td class="tbl-p-w-d-l-p">0</td>
            <td class="tbl-p-w-d-l-p">0</td>
            <td class="tbl-p-w-d-l-p">0</td>
          </tr>
          <tr class="tbl-row-b">
            <td class="tbl-pos-width">15</td>
            <td class="tbl-team-width">Team Name 15</td>
            <td class="tbl-p-w-d-l-p">0</td>
            <td class="tbl-p-w-d-l-p">0</td>
            <td class="tbl-p-w-d-l-p">0</td>
            <td class="tbl-p-w-d-l-p">0</td>
            <td class="tbl-p-w-d-l-p">0</td>
          </tr>
          <tr class="tbl-row-a">
            <td class="tbl-pos-width">16</td>
            <td class="tbl-team-width">Team Name 16</td>
            <td class="tbl-p-w-d-l-p">0</td>
            <td class="tbl-p-w-d-l-p">0</td>
            <td class="tbl-p-w-d-l-p">0</td>
            <td class="tbl-p-w-d-l-p">0</td>
            <td class="tbl-p-w-d-l-p">0</td>
          </tr>
        </table>
after:
<table>
          <tr>
            <td>Pos</td>
            <td>Team</td>
            <td>Pld</td>
            <td>Won</td>
            <td>Drwn</td>
            <td>Lost</td>
            <td>Pts</td>
          </tr>
          <tr>
            <td>1</td>
            <td>Team 1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
          </tr>
          <tr>
            <td>2</td>
            <td>Team 2</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
          </tr>
          <tr>
            <td>3</td>
            <td>Team 3</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
          </tr>
          <tr>
            <td>4</td>
            <td>Team 4</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
          </tr>
          <tr>
            <td>5</td>
            <td>Team 5</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
          </tr>
          <tr>
            <td>6</td>
            <td>Team 6</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
          </tr>
          <tr>
            <td>7</td>
            <td>Team 7</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
          </tr>
          <tr>
            <td>8</td>
            <td>Team 8</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
          </tr>
          <tr>
            <td>9</td>
            <td>Team 9</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
          </tr>
          <tr>
            <td>10</td>
            <td>Team 10</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
          </tr>
          <tr>
            <td>11</td>
            <td>Team 11</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
          </tr>
          <tr>
            <td>12</td>
            <td>Team 12</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
          </tr>
          <tr>
            <td>13</td>
            <td>Team 13</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
          </tr>
          <tr>
            <td>14</td>
            <td>Team 14</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
          </tr>
          <tr>
            <td>15</td>
            <td>Team 15</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
          </tr>
          <tr>
            <td>16</td>
            <td>Team 16</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
          </tr>
        </table>

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mihomle wrote:
.. but the files are so big that I need to have several external hard drive. .. Burn to DVD discs?
1 TB of harddrive space actually <60€ .. drag'n drop files, done. instant access for future projects.
1 TB of DVD disk space (4.4GB x 230 pieces, each ~50¢) = ~115€ + hours of work .. hours of re-importing in future use ...
=> I prefer ext. HDD.. 1TB fits ~ 75h miniDV, or 40-60h HiDef imported (using the 'Archive' feature of iM09 much more) ..

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