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Thang Nguyen

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Posts posted by Thang Nguyen

  1. @JKHS. Thank again.

    Our lab does not use LIMS. My task is find out how to integrate our instrument test data to customer LIMS. As you describe, I will need to look for technical manual of our customer LIMS software.

  2. @JKSH: Sorry for late reply.

    My software controls an instrument in the lab to run cell analyst. One experiment session is start with pressurize the cell through a channel and using machine vision to analyze image captured of the channel. The experiment data is captured in database include of hardware data like pressure, voltage.

    In some lab they use LIMS to manage the workflow. I still not sure how should I integrate my test data into LIMS.

    Thanks for your information.



  3. Hi,

    I was asked by my supervisor about LIMS compatibility of our software. I did some research including search on LAVA still cannot get much information about technical side of LIMS. somehow I only know that it uses the OPC protocol but beside that I don't have any more information. Could you please share with me some information about LIMS and how do we communicate with LIMS from LabVIEW side. I worked with OPC server before.

    Thank you in advance.

  4. I need to display the engineer string in a tree so I used number to engineer string. 

    The issue is it is very limited to format the engineer string with this function. Look at below example


    I want only one digit number before the decimal point but I don't know how to set that. Please let me know how to do it.

    Thank you in advance.


  5. Hi,

    I would like to know if I can write stream data into two different tables with SQLite at the same time or not? Currently my system has one camera. I store the capture images and particle measurement in one table. I have just add one more camera to the system and would like to do the same thing and write to a second table in a parallel process.  I wonder if this is possible or not.

    I use SQLite library.

    Thanks in advance.


  6. My company is growing so need to add one more position for LabVIEW developer. 

    Best to have experience working with complicated architecture

    Need to help object oriented knowledge and experience.

    Good to help experience with NI Vision, Motion, FPGA.

    We can transfer H1B.

    Please send email to thang.nguyen@lumacyte.com


    This position if filled. Thank you.

  7. We are using NI Softmotion, cRIO and NI 9503 to control stepper motors now. But since NI will discontinue these products we need to look for replacement. I just want a controller which I need to send command to tell motor move for a certain distance with a pre-program acceleration, velocity profiles.

    Thank you for answering my question.

  8. In my application, I try to change the size of the Front Panel of sub VI based on configuration. I am not sure why I got error below.


    subVI Set Dialog Size's block diagram


    When call this VI, I tried to passed in VI server reference or pass using VI property node reference. Both of methods return same error


    Thank you in advance.






















  9. Hi,

    I am quite familiar with different design pattern on LabVIEW but I am a newbie on FPGA design. I start working on a project for my own hobby using myRIO to control motor speed with PWM and read back encoder. This is the first part of my project and I plan to expand more later. This project will help me to get use to FPGA too. I am trying to learn a good design pattern by follow the template project which is "LabVIEW FPGA control on Compact RIO". In this template project, feedback value and control signal are analog channels and they connect directly with PID module in FPGA in a normal while loop. The configuration are sent from host. In my prototype project, I already built FPGA module to drive PWM and read encoder using single-cycle time loop. I plan to use PID in real time code. If I want to follow the template design, I have to change the way I implement the code for FPGA and Real-Time. So right now, I am not sure what is a good design I should follow. If you have any advice, I will highly appreciate. 


    Thank you very much!

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