I'm really new to LabVIEW, so I'll preface this post by saying that this question has probably been asked before. I'll begin by describing what I want to do: I have a VI that controls a Lake Shore 331, which is a temperature controller, and I want to automate a data-acquiring procedure. Basically, the user supplies a .txt file with a list of temperatures, say in the format "8 25 50 100..." i.e. just the values seperated by whitespace. I've figured out how to use the "read from text file" function, so I now have a string that looks like the raw input above. Now I wish to (1) split this string at the whitespace, and convert each number to a "number"; (2) for each such value, to check if it lies in a specified range, and depending on what range it's in, to pass certain values to the Lake Shore to implement for a certain amount of time. I'm fairly confident that if I know what temperature range a given value is in, I could use a simple case structure to finish off the program, so it's really the first part that I'm having trouble with. Is there an easier way to get multiple vaules from the user and covert them to decimal? This .txt file thing makes sense to me since I usually work with Python, but I'd love to hear alternatives. Then, how would one go about implementing a range-check, and then a timed loop for each of these values? Any help is much appreciated; please let me know if anything's not clear. Thanks!

LabVIEW

IF, THEN and WHILE loops

It is like step programming...The user set up the steps (temp, p,I,d,heater range). The chamber runs the first step, waits for the temp drop (user moves the slider for simulation purposes) within the tolerance...timer (5sec for quick simulation purposes, drop whatever code needs to be executed in this statement) engages after timer finishes, the index of the user set array is advanced to the next temp range including the pid, heater parameters and does this all over again.....