RsLogix 5000 Hex to SINT array

[Omnicode]

Hello i have been trying to figure out a good way to take hex and convert it to an array of SINT[].

Here is what my failed attempt looks

like.

 

[widelto]

I see no figure at all

 

[Omnicode]

I see no figure at all

https://imgur.com/a/ypkhrLm

i think this may work.

Please ignore that the tag im trying to copy to is meant to be read from. Its just an example.


Basically im trying to split a long string of hex to where each piece will be allocated to a SINT in an Array of SIN []

 

[plvlce]

There are two issues with what you have shown:

1)Your 16-bit number is far too large. Logix is 32-bit, and while there is some support for 64-bit LINT it definitely won't be able to handle the number you have shown.

2)The COP instruction cannot handle constants/literals.

Break your number up into smaller chunks and use BTDs instead.

EDIT: This assumes what you actually care about is the bit pattern of your hex number, not necessarily the value itself.

And if you already have a constant hex value, why not just put it in the sint array manually instead of entering the hex constant into your instruction?

 

[drbitboy]

You could COP the data into the SINT .DATA array member of a string data type, then you would see those hex data as the string it is meant to be i.e.

$VL25,2,960,0*TT

​

 

[Omnicode]

You could COP the data into the SINT .DATA array member of a string data type, then you would see those hex data as the string it is meant to be i.e.

$VL25,2,960,0*TT

​

You are an true gem. I was basically taking long ascii commands and having to manually break them down into hex nibbles and put them in an array.

Lead by the comment about the string.data i found i can now just paste the commands i a string makin sure to use $$ to get my symbol and now I ca roll the commands directly into my WriteSocket.Buf[].

Thank you all for the help.