Hello Rajit,
I assume you're seeing problems with your "Vertical Force on Loadcell (N)" graph? I notice that you have a numeric indicator coming out of the line that's attached to that graph. Do you see updates on that numeric indicator when your graph is displaying a static value? You also have a numeric indicator on your horizontal load cell graph. Do you see updates on that numeric indicator?
Also, how long does it take before this condition occurs? Does it appear to occur at random times, after the same amount of time, or when a particular event occurs (such as a write to file)?
With regards to general feedback on your VI, I have a couple of general points:
1) Your wiring is somewhat confusing. It is generally better to try and reduce wire crossing points for better code readability.
2) You're using a number of express VIs for doing calculator functions. In the express VIs that I examined, you were doing simple operations (input * constant). You can do this function more easily and cleanly using the "Multiply" block. You can find this block in the functions palette under Programming --> Numeric. You can use the multiple block on dynamic data, even if the number you're multiplying the data by is a double or an integer.
3) Your graphs have labels, which is good. However, your numeric indicators do not have labels, which makes them difficult to interpret.
4) None of your error terminals are wired. It is generally better programming practice to handle the errors as they happen, and stop the programming loop if there is an error.
5) You are writing to a file in the same loop where you are gathering data. This is probably OK for your application, but you may want to look into producer-consumer loop architecture (https://www.ni.com/en/support/documentation/supplemental/21/producer-consumer-architecture-in-labvie...) if your file writes are slowing down or interfering with your data acquisition.
Colden
