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kristos_b

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  1. Hi all, I am using Database Connectivity Tool vi to create new table in the database. I was able to set the first column as primary key 'not null' but there is one option I could not find in this vi. I want to set the first column as auto-number (auto-increment). I tried to modify the query by adding there 'AUTO_INCREMENT' string but it gives me errors. Finally I opened the table in access and modified it but that is not ideal at all. Is there any way of doing that using connectivity tool? Thanks, Krystian
  2. Thanks Ton! Hiding menu bar helps plus you need to deselect 'window has title bar'.
  3. Hi All, I started to mess with one of my xcontrols to make it look more like system style. After some adjustments I realized that now when I drop it on new vi, it has a frame like a recessed box. Previously it did not have any frame so it was blended in the front panel. Any ideas how to get rid of recessed box without rewriting Facade vi? Thanks, Krystian
  4. You could save every measurement waveform to separate file. To avoid having thousands of files in one directory you could use openg zip library and archive them on the fly. Works for me but I never had more than thousand measurements. I have no experience with TDMS so I dont know much about errors you are getting. rgds, K
  5. Found the solution. 'render to image' methode.
  6. Hi All, I would like to transfer 3d image/animation created in labview to other device continuously. I have not decided what format it will be. Anyway I need to get the data in some format (array, string...). Does anybody know how to get access raw data from 3d picture control? I imagine it should be available through some invoke node but I could not find anything usefull. Thanks, Krystian
  7. I got the reply from customer support: "The 1200 ohm off impedance is the input impendance when the device is unplugged from the PC and powered down, there are no options toprogrammatically switch to this impedance." No switching of the input impedance unfortunately...
  8. Hi all, I have a question about one of ni usb modules. Previously I was using usb6009 and because it has low ADC input impedance (144k) I was forced to use external buffers and some other circuitry. Now I have in the Lab the usb6212 module which has ADC input impedance 10GOhm when the device is on and 1200 Ohm when it is off (according to this http://www.ni.com/pdf/manuals/371932f.pdf). This is perfect for my application because I have to measure the line first and after measurement I have to short the capacitor to get ride the charge (continuously in the loop). My question is how you actually switch between high and low input impedance. I tried different things from DAQmx palette but nothing works for me. I could not find anything about this problem on ni webpage or LAVA. Could you help me with this or point me to the solution on the web. Thanks, Krystian
  9. Hi Francois, I found the way around. I use Table Control instead Listbox and I am able to get the functionality I want. Although it is a bit more complicated. Thanks, Krystian
  10. Hi All, Does anybody know is it possible to type in the Multicolumn Listbox header while the program is running? Enabling 'editable cells' doeas not work for headers. I have tried to programmatic change the property 'edit position' to (-1,x) but it still sets row 0 instead of -1 (headers). Thanks, Krystian
  11. QUOTE (Ton @ Jul 7 2008, 08:06 PM) I guess you can not expect much from software timing but still this looks pretty weird. Specially that the rest looks quite regular.
  12. QUOTE (Ton @ Jul 7 2008, 07:23 PM) Simple case is to write to one output line pattern i.e. 010101011111111111111111111010101 and on the scope you will see 010101011010101.
  13. Hi Lads, I have noticed something strange while developing some code for ni usb6009 (this same behavior on 6501). I want to load some digital patterns using digital i/o's. I dont really mind that samples are flushed out quite irregular (software timing) but there is one condition for which this module acts quite weird. It seems that when samples on any line are not changing their states, they are either ignored or flushed very fast (I dont know which is true). I hope example below will make it clearer. I trigger the scope with P0.4->channel 1 on the scope. This is what I am sending: This is what I am getting on the scope (1->P0.4, 2->P0.3, 3->P0.2, 4->P0.1) Than I push the trigger 4 clocks further: And result is exactly this same as before. Here I put trigger sooner when something is happening on the lines And it works fine: Did anybody came across problem like this? Below is the code I am using to send the waveform. I have tried to replace waveform with 2d Boolean and send each bit in separate 'for loop' iteration but it didn't help. Thanks for help, Krystian
  14. QUOTE (pikro @ Mar 15 2008, 06:54 PM) Hi, You can use TCP for this. Have a look here: http://decibel.ni.com/content/docs/DOC-1425 Rgds, Krystian
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