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4. Set Parity, Stop Bits, and Baud Rate as appropriate for your network.
5. Set Floating-Point Byte Order to match the byte order used by your Modbus host.
Code Byte order
0
1–2 3–4
1
3–4 1–2
2
2–1 4–3
3
4–3 2–1
See Table 6-15 for the bit structure of bytes 1, 2, 3, and 4.
Bit structure of floating-point bytesTable 6-15:
Byte Bits Definition
1 SEEEEEEE S=Sign
E=Exponent
2 EMMMMMMM E=Exponent
M=Mantissa
3 MMMMMMMM M=Mantissa
4 MMMMMMMM M=Mantissa
6. (Optional) Set Additional Communications Response Delay in “delay units.”
A delay unit is 2/3 of the time required to transmit one character, as calculated for
the port currently in use and the character transmission parameters. Valid values
range from 1 to 255.
Additional Communications Response Delay is used to synchronize Modbus
communications with hosts that operate at a slower speed than the transmitter. The
value specified here will be added to each response the transmitter sends to the
host.
Tip
Do not set Additional Communications Response Delay unless required by your Modbus host.
6.6.4 Configure Digital Communications Fault Action
Display
Not available
ProLink II ProLink > Configuration > Device > Digital Comm Settings > Digital Comm Fault Setting
ProLink III Device Tools > Configuration > Fault Processing
Field Communicator Configure > Alert Setup > I/O Fault Actions > Comm Fault Action
Integrate the meter with the control system
Configuration and Use Manual 131