Nothing, I just changed my program a little, instead of using VISA read, I used the instrument driver specified interfaces. And, it worked. But sticking to the old program I didn't work on it, may be will see to it later.
May be this is usefull for the ones that don't whant to change their programs, is very easy.
I had the same(or very similar) problem so i read all the posts. If i understood what was the issue the solution is very simple you have to use "fract/exp string to number function" and if the decimal separation is a point you have to add a boolean as false in the "use system decimal point" and that solve the issue.
