Start address (lo): The bottom (least significant) eight bits of a 16-bit number
representing the start address.
Start address (hi): The top (most significant) eight bits of a 16-bit number
representing the start address.
5.3.4
Register data field
Included in the query frame from the master or the response frame from the slave,
the field indicates the register data that the master request to write or read in the
query frame or the register data supplied in the response frame sent by the slave.
There are four types of register data: single-precision floating-point value, status flag,
control flag and control code. For parameters and its data type, please refer to
Section 5.5.
Below is the format of the register data that represent numerical value.
Single-precision floating-point value
Sign bit
Exponent
Significand
1-bit
8-bit
23-bit
4-byte
The conversion between decimal and binary floating-point number is according
to IEEE 754 32-bit base-2 floating-point arithmetic.
For example, the register data 44 48 00 00 can be converted in value 800.00.
Table 5.5