Permissive and interlock circuits

Discussion in 'Feedback and Suggestions' started by kevinhol4, Mar 13, 2010.

  1. kevinhol4

    Thread Starter New Member

    Feb 3, 2007
    On the Volume four_Digital under Permissive and interlock circuits section figure.
    The label on CR1 for red LED was wrong it should be CR2 for red LED.
    Last edited by a moderator: Mar 13, 2010
  2. Wendy


    Mar 24, 2008
    This link..,

    This picture?


    CR1 is not referring to the LED, it is referring to the Ladder Logic relay CR1 coil.

    Designations can be tricky, especially if you get used to seeing certain ones for certain components.

    I am not the final arbiter of the book. That would be our editor, I'm just the first responder.