Emerson MMI-20019043 Manuel D’Utilisation

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.

1–2    3–4

3–4    1–2

2–1    4–3

4–3    2–1

See 

 for the bit structure of bytes 1, 2, 3, and 4.

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.

Do not set Additional Communications Response Delay unless required by your Modbus host.

6.6.4

Configure Digital Communications Fault Action

Display

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

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