Emerson Rosemount OCX8800C Manual page 178

F Fieldbus
™
OUNDATION
April 2023
8.12.6 Application information
The input selector (ISEL) function block can be used to select the maximum temperature
input from four inputs and send it to a proportional/integral/derivative (PID) function block
to control a process water chiller
average temperature of the four inputs
Figure 8-30: Input Selector Function Block Application Example (SEL_TYPE = max)
A. Input selector (ISEL) function block
B. To another function block
Figure 8-31: Input Selector Function Block Application Example (SEL_TYPE = avg)
A. Input selector (ISEL) function block
B. To another function block
178
(Figure 8-30) or it can use the block to calculate the
(Figure 8-31).
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