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31. Completing the Program

Allen-Bradley PLC Programming | Advanced Course • 5m 34s

Up Next in Allen-Bradley PLC Programming | Advanced Course

  • 32. Verifying and Downloading the Pro...

    The program logic is now complete! As we look back over the ladder logic, we see there are a lot of elements to this program that need to be tested. So many things will be happening at once. How can we isolate the logic so that we can verify its operation?

    One way is to add “Temporary End” instr...

  • 33. Testing the Sizing Logic

    We will begin to test the logic for the box packing line, using the Suspend instruction to isolate sections of the program.
    - To test the sizing logic for detection of small boxes only, we will set the value of N7:2 to 1 so that the program will suspend after detecting and counting a series of sm...

  • 34. Testing the Alarm Logic

    To test the box jam logic and stack lights, we will set the value of N7:2 to 3 so that the program will temporarily end after the box jam alarm and stack light logic. We inspect the TND instruction in Rung 10 to see where the logic processing will end.

    The “Temporary End” instruction behaves muc...