Floating Point As Per Ieee Standard - Algodue ELETTRONICA UPM209 Manual Del Usuario

Structure
Protocol ID
Data bytes
Unit ID
Function code
Starting register
Words to be written
Bytes to be written
Programming data to be written
Command example: 01000000000B0110203C00020400000003
Transaction ID
Protocol ID
Data bytes
Unit ID
Function code
Starting register
Command successfully sent
Response example: 0100000000060110203C0001

2.3 FLOATING POINT AS PER IEEE STANDARD

The basic format allows a IEEE standard floating-point number to be represented in a single 32 bit format, as
shown below:
where S is the sign bit, e' is the first part of the exponent and f is the decimal fraction placed next to 1. Internally
MODBUS RTU/ASCII, TCP
Example Byte
00 High
00 Low
00 High
00 Low
0B -
01
-
10 -
20 High
3C Low
00 High
02 Low
04 -
00 High
00 Low
00 High
03 Low
01 -
00 High
00 Low
00 High
00 Low
06 -
01 -
10 -
20 High
3C Low
00
High
01 Low
N.n = (-1) 2 (1.f )
S e'-127
55