Introduction to Industrial Automation

Figure 10.24  Rate monitoring of transferred objects in a process machine.

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Industrial Applications 

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which is stored in the word memory MW100 of the PLC. Write the required PLC program in 

Boolean language that will adjust the thickness of the produced sheet (the conditions are never 

optimal) in accordance with the following specifications:

  1. When the measured thickness is d = 5 mm, then the nominal forces F

0A

 and F

0B

 are applied.

  2. When 5 < d ≤ 5.1 mm, the applied force is increased in roller B.

  3. When d > 5.1 mm, the applied force is increased in both rollers.

  4. When d < 5 mm, the applied force is decreased in roller A, while roller B applies the nominal 

force.

  5. The operation starts by pressing the START button, and initially the nominal forces F

0A

 and 

F

0B

 are applied. By pressing the STOP button, both rollers cease to operate.