Hexadecimal string to Float

Hello, I have a device that I am trying to contact using UDP. The device returns the data in hex strings, but I do not have very good documentation on the format of these strings. Here's what I have:

00 - order type / BYTES

01 - response Code / BYTES

02 - task ID / BYTES

03 - channel / BYTES

04-07 - current PS / float

08-11 - PS to courses / float

12-15 - DAC voltage / float

16-19-PS ripple current / float

20-23 - PS common ground / float

24-27 - temperature / float

28-31 - PS Volts / float

32-35 - Volt alternative channel / float

An example of data return might look like this:

C8:00:10:00:7F:8 d: f1:ba: ff: ed:22:39:f8: ff: 1f:41:4 c: 41:52:39: ff: 57:63:38:3d:f1:a7:42: ff: 35: be: 39:7f:49:a7:3 has

The value that I really care about right now is the current PS in bytes 04-07. So, I did a 4 offset and a length of 4 on the subset of string which would be something like 7f8d f1ba. But I did have a success this turning point in a real number using the hexadecimal number VI to try every possible representation.

Anyone have an idea how I can convert this? I added a screenshot of what I have now. Thanks in advance for any help.

On edit, in which case it is useful a current of 1.00005 would return 96:01:80:3f or complete the answer incase I'm wrong offsets:

C8:00:1F:00:96:01:80:3F:FF:57:63:38:C2:00:80:3F:EF:8 c: ed: 3A: ff: 57:02:38:0's: 25:c8:42:34:e3:7f:3e:bf:4f:88:ba

Note: I'm assuming that you put into the colon for readability, and that you have not really found of the UDP.

What you found actually is a string of bytes, not a string of characters that represents the hexadecimal values. In other words, you don't get the 'F' character to indicate a hexadecimal value of F. You get a byte of value 15 decimal places. In addition, the characters are in reverse order. To convert it, cut the section you want to reverse the string and then use the Cast of Type function:

Tags: NI Software

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