Emerson MICRO MOTION HFVM Series Configuration And Use Manual page 94

Integrate the meter with the control system
Procedure
1.
2.
3.
4.
88
Enable or disable Modbus ASCII Support as desired.
The setting of this parameter controls the range of valid Modbus addresses for your
device.
Modbus ASCII support
Disabled
Enabled
Set Modbus Address to a unique value on the network.
Set Floating-Point Byte Order to match the byte order used by your Modbus host.
Code
0
1
2
3
See the following table for the bit structure of bytes 1, 2, 3, and 4.
Table 6-7: Bit structure of floating-point bytes
Byte Bits
1 SEEEEEEE
2 EMMMMMMM
3–4 MMMMMMMM
(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.
Additional Communications Response Delay is used to synchronize Modbus
communications with hosts that operate at a slower speed than the device. The
value specified here will be added to each response the device sends to the host.
• Default: 0
• Range: 0 to 255
Micro Motion
Available Modbus addresses
1–127, excluding 111 (111 is reserved to the service port)
1–15, 32–47, 64–79, and 96–110
Byte order
1–2 3–4
3–4 1–2
2–1 4–3
4–3 2–1
Definition
S=Sign
E=Exponent
E=Exponent
M=Mantissa
M=Mantissa
® Heavy Fuel Viscosity Meters (HFVM) Viscomaster ™