Microsensor MFE600H Series, Operation Manual

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Appendix: IEEE 754 Single -Precision Format
The length of the single-precision floating-point number defined by the IEEE 754 standard is 32 bits,
and can be divided into: sign bit, order code bit and mantissa bit according to the bit field, as follows:
31--------------------------------22--------------------------------------------------------------------------------------0
| | |
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
| |-------------------------------| |-----------------------------------------------------------------------------------------|
Sign Code level Mantissa
The sign bit is 0 for positive numbers, and 1 for negative numbers.
Code level is 8. It should be noted that the exponent n of 2n cannot be directly treated as an order
code, it needs to be added to 127 (7FH) to get the order code representation of 2n.
The bit field length of the mantissa is 23 bits in the figure, but it is actually24 bits. This bit is
‘invisible’
and its value is fixed at 1, which means that the effective digits of floating-point numbers defined by the
IEEE 754 standard are decimals between 1 and 2.
In the process of data transmission, data is transmitted in the order from left (high byte) to right (low
byte) as described above.
10 Responsibility
Within one year from the delivery date, we shall repair or replace the instrument with any quality fault
caused by material parts or our manufacturing technique free of charge. For non-quality malfunction
during user’s operation, we are in charge of repair. But the material cost and the shuttle transportation
fees should be borne by users.