Honeywell UMC800 - Remote Access; Overview; Modem requirements; Cable requirements

Message Exchange Formats
34 RS232 Communications Reference Manual 8/99
4.6.4 Mantissa and Exponent Combination
Combining the mantissa and exponent from the two previous examples:
float number = mantissa x 2
float number = 1.5625 x 2 x 64 = 100.0
exponent
6
= 15625.
Below is a list of sample float values in IEEE 754 format:
DECIMAL
HEXADECIMAL
100.0 42C80000
-100.0 C2C80000
0.5 3F000000
-1.75 BFE00000
0.0625 3D800000
4.6.5 Reserved Operands
Per the Standard certain exceptional forms of floating point operands are excluded from the numbering
system. These are as follows:
EXCEPTION EXPONENT MANTISSA
+/- Infinity All 1’s All 0’s
Not-a-Number (NAN) All 1’s Other than 0’s
Denormalized Number All 0’s Other than 0’s