if (NCDX05NV.raw == 0) then
VAR_CSR := 16.777216;
else
if (NCDX05NV.raw == 1) then
VAR_CSR := 20;
else
VAR_CSR := 0;
endif;
endif; 
return((VAR_CSR*1000000)/(2*NCDD05NA.raw)/(1+NCDD05NB.raw));