# Re: Converts a hexadecimal string to a number

Good afternoon;

I'm doing the same thing.  I read 8 bytes of data from a modbus gateway.

I take the substring that I'm interested in... if I put normal playback display is not printable... the value hexadecimal display reading is 3098 should be decimal 12440 I think?

It feels like I am close but not quite...

MNED wrote:

I can't get the conversion...

Have you tried our suggestions (font Type) or string Unflatten yet?

Tags: NI Software

### Similar Questions

• Converts a hexadecimal string to a number

As the attached vi, I am tring to convert to string (hex) number (U8), but doesn't seem to work.

Any suggestion, thank you.

Now, you have 2 solutions:

• converting a hexadecimal string to withh on ascii bytes

How to convert a hexadecimal string of numbers of bytes without ascii codes, then all the octets converted is expected to come in a package

Can you give us a Vi containing an example of string and what you want out of it. What is the dataype 'packets '?

• Converts a hexadecimal string to ASCII by VBAI

Good day, experts, OR the

I would like to ask for help on the stage of the VBAI calculator. Is there a way I could convert a hexadecimal string to ASCII character? For example 25 (Hex) to %(ASCII) or, if not in the calculator to other methods? I'll have to send data via TCP/IP later.

Thank you very much
Andrei K.

Now I understand what you want. You can actually do from TCP step. First of all, you need get the length of the string in a digital as you did in step of the calculator, but then you can send this digital as a hexadecimal string of ascii to TCP step. To do this, have the length of the string as a numeric result in the return of calculator. In the TCP step, add a "Write" command and insert a result. Select the digital output of the step of the calculator and U8 of the data format. You can use the display/Hex Normal display to view the data that will be sent, and when displaying normal view, you can see that it is a '%' value when length is 37. See the attached screenshot to see how I did it.

Hope this helps,

• Convert a hexadecimal string to byte array

Hello

I would like to convert a hexadecimal string (e.g. 0x156FD18A4) into an array of bytes, the problem is that I don't have any delimiter (for example 15 6F 8 a 4 D1) so I can't use the worksheet to an array of strings, I tried to do something on my own, but everything seems to be too complicated is there an appropriate way clean and neat to achieve what I want? (or maybe a clever trick to add delimiter every two characters in my original string)

Thank you!

• Converts a hexadecimal string to a signed Int

Hey,.

I was wondering if there was a way to convert a whole string. Now, here's the problem, the string is hexadecimal characters actually so in normal mode, I see my hexadecimal characters. I've attached a screenshot of my normal string indicator. What I want to do is to take these 4 characters and a 32-bit signed integer. Thoughts?

You can do it with the analysis of string function:

This would release "27".

• Convert the hexadecimal string of Little Endian floating-point single precision

I made a lot of tinkering and research, but despite all the very similar examples, I found, I think that I am limited by my lack of knowledge in programming. I gives me values such as 0000c 641 I need to convert to `41C60000` who must convert single precision IEEE754 to 24.75 as a standard 32-bit float. I saw very similar examples with boxing and unboxing conversions, but I simply can't understand it. Thank you.

OK, so if you have actual letters coming, there are a few ways that you can do. You can basically change the string in order to get in order waiting for LabVIEW. Otherwise, you can do the same using data manipulation functions:

• Can I use a hexadecimal string with a case statement?

Simple question:

Can I enter a hexadecimal string to a case statement and have the case statement see it as hex?

I understand that I could convert the hexadecimal string to a number and then enter the hexadecimal number to the case statement but I am curious to know if I could have the case see the string itself as hex without this added feature.

Would be nice to not have to convert all my numbers throughout my code strings

Thank you

-Eric

How long are the strings? Since you mention convert in numbers, they are probably short and all of same length.

Are there different possible channels how?

Case header includes \-codes in the case of a label deal selector As string, so that should be enough for your use. For example this code turns the LED (.. .so that a simple string of "\00\00" of wiring would not be!)

(See also the last sentence of the "enumerated values" section of the help).

• Convert a single number to a hexadecimal string of 32-bit and exchange the high and low bytes

I need to convert a number single precision floating decimal to hexadecimal format of 32 bits, share the high and low bytes and that convert a hexadecimal string.  I tried to use the 'Word of Swap' function but it seems to have no effect on the unique number.

Then

A single decimal number of entry: 100

Convert 32 bit hexadecimal string with the low byte first: 0000 42 8

Anyone have any ideas?

Thank you

Slightly lighter, try to cast U32 and exchange words. Same difference.

(apparently, exchanging words is a NOOP for SGL, but still accepts SGL without constraint. Interesting...)

Hello Experts,

I just stuck in a simple problem. in fact I'm having an array of string HEX I want to convert it to HEX number format, I am looking for this conversion. It's that simple, but I can't do this job. Please see the image to join for more understanding.

Soon harry and thnaks in advance

Harry,

You can do this (and many other conversions from string to a number) with analysis of the chain. %x indicates LabView input data are hexagonal. There are also a lot of string functions to a number (for example ' in hexadecimal string to the number") which could be faster if you do this 100 000 times in loop, but analysis chain will solve 99% of your problems.

-Rob

• How to convert a string to a number?

How to convert a numeric string to a number of TestStand?

Use Val().

Example Val (Locals.myString)

Hello world

I'm using Labview 2012 and receive data on my serial port which I want to convert a hexadecimal string. I have attached a VI that only allows me to convert the first part of the string, but not the rest.

Does anyone know how to do this?

PS: I don't want to have just the incator displayed in hexadecimal format, I really need to do a conversion of the string to be able to work around it after.

Thank you.

User

See that red dot on the number of function Hex String in the image of the code, which is your data gets blown into a U64 array.  Yuk.  Drag a loop around the spell function channel number and it is actually a little faster.  Goes against everything you think you know all LV, but it's one of those exceptions.

• convert from hexadecimal to decimal

I've recently started working with hexadecimal data. I want to convert a hexadecimal string of 2 bytes to a decimal number, but the VI where I expect to do this does not quite work. You can see that it tied for an example of what I mean. Any suggestions?

Hi greg,.

This has been asked so many times before: you need to be sure about the representation of your data.

More simple would be a cast:

(digital constant is defined as U16!)

• Conversion to Hex string to a hexadecimal string that can be converted into a floating number with comma

Hi, could someone help me please. I've been racking my brains out for almost three hours trying to solve this problem by trying different things.

I have a code that retrieves a string of a robot control. The string is in hexadecimal and represents the number 1.234567. The string itself is 3FF3C0C9539B8887

If I make a cast on the channel that I have, it simply returns the value zero.

If I delete the control string, change it to hex and manually type in 3FF3C0C9539B8887 (so Labview auto updates 3FF3 539B 8887 C0C9) I get the result I need.

However I can't find a way to do this. My apologies, someone out there is probably shaking he leads to something that is relatively simple, but I'm kinda new to deal with hex.

Code is attached below in LV8 (although I'm under LV2012)

Thank you

Andrew

The for loop is not necessary if you limit to 64-bit.

• Number of allocations of memory of hexadecimal string

I am convert a string to a byte array and then converting this array of bytes into a hexadecimal table using the built-in primitive like this

What is the best way for a performance? When I run the DETT I see multiple memory allocations. I think that one for each element of the array. I think it has to do with the point of constraint. Also, it happens only if I connect to the chain of the indicator. If I run this without the indicator chain I don't see not all memory allocations. (Perhaps LabVIEW do not know the code because I don't do anything with the result)

I just got the DETT and I'm not very sure of how LabVIEW allocates memory. But I do a test by running this code

I see not all memory allocations in the DETT as I do with the number of hexadecimal string.

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