VISA

[nutsaboutLabVIEW]

Hi, 

I'm trying to design a vi that will take information in a HEX format from Docklight and output blood pressure and heart rate. 

I've included my requirements as I understand them and my inital attempt at the vi (not very complex I got lost fairly early, and don't have much experience understanding VISA requirments). 

I want to be able to "read" through the file (output HEX) and determine when the value is 67 because this is the indication that the sensor has acheived a sucessful measurement. The next three values are the systolic pressure etc. I know how to take the output values and use them as I want. 

What I need to know is:

     Do I have to change my valued from HEX in order to read them in the VISA? 

     How do a create a loop that reads all the value until it reaches 67?

     How do I initalize a new loop starting at 67 and have it output these values in a way that I can display easily on the front panel? 

I'm pretty sure this is straightforward I'm just still getting used to understanding VISA function. 

[Dennis_Knutson]

What you are saying does not make much sense. You say you want to read from a file but VISA has nothing to do with file I/O.

[User002]

I assume you are using Serial VISA?

Check out this tutorial:

https://learn.ni.com/learn/article/getting-started-with-instrument-control-hardware-and-labview

Br,

/Roger