D8 Series User’s Guide
Chapter 6: Menu and Parameter Reference
130
Default:
none
(0)
DeviceNet™ Object:
Ratio (69 hex)
Ratio Low Set Point
l
01 Ratio low
r
SP
b
25 ˚C
Enter the lowest allowable set point for the current loop. The set point will never drop below this
value, regardless of the result of the ratio calculation.
Values:
For a thermocouple or RTD input, any value within the input range (see Table 6.7 – Input
Types and Ranges on page 107). For a process input, any value between the
Input range low
and
Input range high
parameters. This value must be less than the
Ratio high SP
parameter.
Default:
25
Decimal Placement for DeviceNet™:
See Decimal Placement for Numeric Values on page 46.
DeviceNet™ Object:
Ratio (69 hex)
Ratio High Set Point
l
01 Ratio high
r
SP
b
25 ˚C
Enter the highest allowable set point for the current loop. The set point will never exceed this value,
regardless of the result of the ratio calculation.
Values:
For a thermocouple or RTD input, any value in the input sensor range; see Table 6.7 – Input
Types and Ranges on page 107. For a process input, any value from
Input range low
to
Input range
high
. This value must be greater than the
Ratio low SP
parameter.
Default:
25
Decimal Placement for DeviceNet™:
See Decimal Placement for Numeric Values on page 46.
DeviceNet™ Object:
Ratio (69 hex)
Control Ratio
l
01 Control
r
ratio
b
1.0
Enter the factor by which to multiply the process variable of the master loop to calculate the set
point of the ratio loop.
