2.2.1.6 FixedPoint

Specifies an approximation of a real number, where the approximation has a fixed number of digits after the radix point.

 Value of the real number = Integral + (Fractional / 65536.0)

Integral (2 bytes): A signed integer that specifies the integral part of the real number.

Fractional (2 bytes): An unsigned integer that specifies the fractional part of the real number.