Process Controls
CONTROL LOOP DIAGRAMS
Figure 7 Takeoff Point
Feedback Control System Block Diagram
Figure 8 shows basic elements of a feedback control system as represented by a block diagram.
The functional relationships between these elements are easily seen. An important factor to
remember is that the block diagram represents flowpaths of control signals, but does not represent
flow of energy through the system or process.
Figure 8 Feedback Control System Block Diagram
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