Markers

  • Markers are one bit variables that let you keep track of the current state.
  • Markers and Outputs have four types
    • Contactor - Turns the marker on/off to match the rung state.
      - Continuously sets the marker to match the rung state.
    • Set - Turns the marker on when the rung is active.
      - No impact on the marker when the rung is not active.
    • Reset - Turns the marker off when the rung is active.
      - No impact on the marker when the rung is not active.
    • Impulse Relay - Toggles the state of the marker at the moment the rung becomes active.
      - Only affects the marker at the moment the rung goes active.