Agilent U2300 Series - Arbitrary Waveform

[kajo97]

Hi, I'm stuck with a generating an arbitrary waveform. I can generate something, but it's generating wrong values. Something is wrong in my code and I can't figure out what is it. I can generate only values from 0 to 1, cause I use an unsigned word integer conversion, but when a change the type of conversion to word integer then I getting wrong results. I need to generate a negative values too, from -1 to 1. Could somneone give my an advice how to convert my values please? 

Thank you in advance.