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6.5: Basic Ladder Logic

  • Page ID
    3670
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    A YouTube element has been excluded from this version of the text. You can view it online here: https://openoregon.pressbooks.pub/hydraulics/?p=181

    Describe ladder logic diagrams and indicate the advantages of ladder logic

     

    Differentiate between control/pilot signal and power/primary signals

     

    Describe the purpose of separating pilot and primary

     

    List the 11 basic rules of ladder logic as discussed in this lecture

     

    Describe the behavior of this system for all possible combinations of input conditions.

    system-2.png

     

    Describe the behavior of this system for all possible combinations of input conditions.

    system-3.png

     

    Describe the behavior of this system for all possible combinations of input conditions.

    system-4.png

     

    Describe the behavior of this electrically controlled hydraulic system. Define the purpose of the holding circuit.

    system-5-300x129.png

     

    Describe the behavior of this electrically controlled hydraulic system incorporating a limit switch.

    system-6-300x126.png

     

    Compare and contrast hard wired relay based ladder logic with a programmable logic controller.