Hexadecimal string to Hexadecimal number

[hierromovil]

I need to convert a hexadecimal string into a hexadecimal number to use that value as input to a Modbus block .. How is it done?

[RavensFan]

String >> Number/String Conversion palette.

[mikeporter]

The built in function "hexidecimal string to number".

Mike...

[paul_cardinale]

Note that what you want is to "convert a hexadecimal string into a number", not a  "hexadecimal number".  The output is a number, stored internally as binary, and the number base isn't specified until it is converted back into a string.

[altenbach]

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@hierromovil wrote:

I need to convert a hexadecimal string into a hexadecimal number to use that value as input to a Modbus block .. How is it done?

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Your question is very ambiguous, because all we know is that you have a string and probably want another string.

(The word hexadecimal is a visual format, not an internal representation).

You need to be careful to make a distinction between internal representation and formatting for human consumption.

You could be talking about:

1. A binary string possibly containing all 256 possible byte patterns (00..FF) with the string indicator set to hext display.
2. A hexadecimally formatted string containing exclusively the 16 characters 0..F (and maybe some spaces for readability).
3. A numeric with the display set to hexadecimal formatting.
4. etc.

So: 

• What do you have? (what is a hexadecimal string????)
• What do you want? (what is a hexadecimal number????)

Easiest would be if you could attach a simple VI containing diagram constants of your actual data and what you want out of it.