i am facing a problem,i am using s7-200 CPU-224XP,

i was turning the output LED on and off by usingS_ITRand Real COMPERATORS.but my professor is asking me to not use the S_ITR but move the AIW0 value using VW100, multiply that WORD with (10/32767)0.000305 which is step size,and you will get the input voltage value.and then use thecomparatorsso that we can turn the LED on and off while using the real values of the input voltage so that we can exactly show that what is the voltage value of AIW0 .is there any way that i can multiply the word with float value,and then compare the output to turn the LED ON/OFF.hope you got my point.kindly reply me as soon as possible,i shall be very thankful to all of you.