Crimson 3.1 TexttoInt

Hello,


Looking for some help with the Crimson function TexttoInt.
It seems to be pretty straight up...but maybe im missing something.


Description: Returns the value of string,treating it as a number of base radix. This function is also used together with mid to extract values from strings received from raw serial ports. It can also be used to convert other string values to integers.



Ex: data = TextToInt("1234",10)


So just as a test I set up:


This should return 65 as Ascii code for A but it returns a 0.
If you change the radix to 128 it returns a 10. So it seems
like its trying to do something...not sure what.



Any help would be greatly appreciated

I believe text to integer should only be used on ASCII numbers the radix is the key to what it does, try texttoint("1234",10), you will find it turns it to an integer, putting a alphabetical char will return 0 at a radix of 10, it is not possible to use a string to integer function to return a characters decimal equivalent. ASC function is the one to return it's decimal value but I do not think it is a function in Crimson.

I think you are getting a bit confused with this. In the example that RedLion give it would convert an ASCII Text "1234" to an Integer value of 1234. It doesn't return the ASCII code value of the input figure.

Thanks for your replies. Couldnt get a good answer from crimson about that function..

gimli said:

Thanks for your replies. Couldnt get a good answer from crimson about that function..

Click to expand...

It's probably similar to this: https://www.geeksforgeeks.org/python-int-function/.


The reason "A" made TextToInt returns 10 when the radix (base) is 128 is that A is 10*, i.e. the next value after 9, for bases greater than 10.


* and B is 11, C is 12, D is 13, etc.

If you want to see the ASCII code rather than the Text character you don't need to do a conversion. I have some settings for a data logger and it helps to be able to see both the ASCII code and character. I define two Tags, one of type Integer and one of type String, both with the same memory address in the PLC. They both read the same data but display it differently.