<8. Detailed Description>
1. Example of Single-loop NPAS_PID
This sample application comprises one analog input, one analog output and one
single-loop PID controller.
Analog input : AI001 Analog output : AO001
NPAS_PID : FIC001 Tag comment : TEST
The earlier figure shows the sample application represented in FBD or LD, while the
above figure shows the same application represented in ST. Comparing these two
applications, it can be seen that FBD and LD logic allows easy visualization of the
data flow from left to right.
In ST logic, inter-block connections are coded using expressions so it is harder to
visualize the data flow.
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