3.2.8. Floating point formats
The floating-point format byte order is shown in
IEEE 754
Floating
Point
Format 0
Note: "S" is the sign of floating point number, "E" is the exponent, and "M" is the mantissa
3.2.9. Communications
SMV800 modbus transmitter can be configured with a turnaround delay time
(holding register 106), which defines how long the transmitter will wait to respond
after receiving a query from the host. If the Turnaround Delay Time is set to one,
the device will respond as fast as it can. The default Turnaround Delay is 50
miliseconds.
The registers shown in
diagonostics information about the communication between the device and the
host. The communication statistics will reset when SMV800 Modbus device loses
power or if a Master Reset performed. The registers will be reset to zero when the
value in the registers exceeds maximum value of an unsigned 16-bit number.
Address
111
110
109
Revision 1.0
Table 3-5: Floating Point Format
Byte Order
Byte A
Byte B
SEEE EEEE
EMMM MMMM
1
2
Table 3-6
provide statistics that may be used to gather
Table 3-6: Communication Statistics
Register Type
Holding
Holding
Holding
SMV800 Modbus User's Guide
Table 3-5
Byte C
MMMM MMMM
3
Attribute
Description
Read Only
Network Parity
Overrun Error
Read Only
CRC Errors
Read Only
Good Message
Count
Byte D
MMMM MMMM
4
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