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42. Additional Common Instructions Used in RSLogix

Introduction to Allen Bradley PLCs - RSLogix 500 • 4m 50s

Up Next in Introduction to Allen Bradley PLCs - RSLogix 500

  • 43. Defining the BALL MILL Example Pr...

    In this control example, a ball mill is used to grind coarse sea salt into very fine salt crystals for use in baking. A salt hopper delivers coarse salt to the ball mill and after a period of 60 seconds in the mill, very fine salt is discharged from the mill to a collection hopper.
    Since the moto...

  • 44. Ball Mill Program Development

    When a PLC programmer starts to develop a program given a software specification, there are several steps that can be taken to ensure a successful implementation.

    First, we need to define the “I/O” that will need to be included in the program.

    From the specifications, we can see there is a Star...

  • 45. First Specification - Ball Mill S...

    Program specification number one from the previous section says:

    “The Ball Mill, Cooling Fan, and a Lubricating Oil Pump should all go on when a start button is pressed.”

    We could add the start pushbutton to each of the motor rungs, but there is a more efficient way to program this logic. We wi...