How to effectively change decimal numbers hexadecimal bytes streaming?

Technical support,

There is an instrument connected to a serial port on my computer which is streaming 25 bytes of hexadecimal data every second.  After changing the display for "Display Hex" mode, I can now see the hexadecimal bytes instead of Laura.  I use the "Hexadecimal string to number" vi with marginal success.  I mean, that (1) I can't convert the entire hex string at all, and (2) when you use "String subset" to analyze different hexadecimal bytes I'm able periodically to convert a hexadecimal byte to a whole number.  I tried the suggestion of molded type indicated in a previous post on this subject without change of achievement, although I do not quite understand how it works (how to set correctly the type?).  Do I need a buffer to convert continuous hexagonal data streaming?

I would send my vi, but it is quite simple.  25 bytes of hex data in every second (1 second buffer), Index 0, default U32, sent to an indicator.  At this point, all I want to do is see my data.  I'm using LabView 8.5.1.  Please indicate if I should provide more information.  Thank you.

~ Going bananas

CodeMunkee wrote:

After changing the display for "Display Hex" mode, I can now see the hexadecimal bytes instead of Laura.  I use the "Hexadecimal string to number" vi with marginal success.  I mean, that (1) I can't convert the entire hex string at all, and (2) when you use "String subset" to analyze different hexadecimal bytes I'm able periodically to convert a hexadecimal byte to a whole number.  I tried the suggestion of molded type indicated in a previous post on this subject without change of achievement, although I do not quite understand how it works (how to set correctly the type?).  Do I need a buffer to convert continuous hexagonal data streaming?

I would send my vi, but it is quite simple.  25 bytes of hex data in every second (1 second buffer), Index 0, default U32, sent to an indicator.  At this point, all I want to do is see my data.  I'm using LabView 8.5.1.  Please indicate if I should provide more information.  Thank you.

If your data looks correct when you set the display string for hex, the 'hexadecimal string to the number"is NOT the right tool (it hexadecimal sat in the format of strings containing ASCII characters 0...) F only). You have a binary string so labeled is the right tool. If you want the first 4 bytes as U32, simply create you a diagram representation U32 constant (the value is irrelevant) and connect to the entrance of type type conversion. The output will be a single wire digital U32 containing the desired output.

What is in the rest of the string? It cannot be U32 except if there are a few characters to terminate employment. Want to see one of the remaining data? In this case, you will need to tell us the structure.

So please create a flag for the string of your own, run the VI it contains data, then convert the flag to a constant of diagram (right click on Terminal... change to constant: this way to see what you actually). Now, save the VI and attach it here. Tell us what value you expect. (Things could be a little more complicated if you have BOM with the little rule).

I have a don't know what you mean by "continuous" data. How much history you want to keep? You want to stream to disk? If you just want to see recent history data, connect to an array whose length desired history.

Tags: NI Software

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