Host computer error correction

  The host computer I made before had a panel lock problem. The reason was that the event structure did not have a timeout, causing the panel to freeze in the event structure (when editing an event, remember not to select the lock front panel in the lower left corner until the event ends). The event structure reduces the three event structures to one, which is easier to program. 

  While making corrections, the structure was optimized. The video module was placed in a separate while loop, and another one was placed outside the two while loops, otherwise only the first one would be executed. The two internal loops each had a stop button, which was connected to the external loop using the AND logic connection (when both internal while loops were stopped, the entire program would end the loop).

  Added a light off button