Emerson Micro Motion 3711, Configuration And Use Manual, Page: 145 / 234

Configuration and Use Manual 137
Modbus Interface
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Figure 12-3 Modbus Configuration window – Scale Values panel
4. Set parameters as required. Scaling may or may not be applied to Modbus communications, as
configured in Steps 6 and 9. For a discussion of scaling, see Section 12.5.1.
Parameters in this panel are listed and defined in Table 12-2.
5. Open the
History Access Registers
panel. The panel shown in Figure 12-4 is displayed.
Table 12-2 Modbus Configuration – Scale Values parameters
Parameter Description Comments
Integer Scale Low Value The value that will represent 0% for all analog
data. Range is –32768 to +32767. Raw values from analog
inputs and outputs will be
normalized and scaled to
these values.
These values can be used
to scale analog I/O to
integer values with an
implied decimal point.
High Value The value that will represent 100% for all analog
data. Range is –32768 to +32767.
Float Scale Low Value Enter the value that will be used in the conversion
equations. See Section 12.5.1
.
These values are typically
used only when the
Modbus host cannot
process floating-point
values.
High Value Enter the value that will be used in the conversion
equations. See Section 12.5.1
.