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Up Next in Introduction to Allen Bradley PLCs - RSLogix 500

  • 34. Modifying the Logic

    So, what do we need to do to fix the logic?

    We see that the timer ran once and stopped. We wanted it to run to the preset value and then restart.

    To do this, we need to add an “XIO” instruction, so that when the timer preset is reached and the “DONE” bit is set, the timer is reset and starts o...

  • 35. Documenting a Program

    We assume that any program we write will eventually need to be modified or maintained by a different programmer. Knowing this, how do we make it easier for another programmer to understand what we have programmed?

    The answer is documentation.

    RSLogix provides several methods for documenting la...

  • 36. Changing Colors in the Ladder Window

    The black on yellow comment color combination is a little hard to distinguish from the “Address Comments”, which use the same color combination.

    To change the appearance of the rung comment, as well as other items in “RSLogix”, we select “Properties” from the “View” menu and then select the “Col...

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