Dear Rolf Kalbermatter,
Thank you for you kind reply and really sorry for my late response.
Due to health problem from flu and maybe covid19, I couldn't work well and return to my job recently.
Thank you for your advice and recommendation.
Due to the limited time in my work, I was so hurry to finish up something I didn't know well.
I'll take the tutorial and try to learn basic things to understand the LabVIEW.
Thank you so much and I appreciate your help.
