We Write a Little Program

• Controlling a Traffic Signal Unit
  • Controlling a Traffic Signal Unit
  • Create POU
  • What does TRAFFICSIGNAL do?
  • What does WAIT do?
  • What does SEQUENCE do?
  • What does PLC_PRG do?
  • TRAFFICSIGNAL simulation
  • “TRAFFICSIGNAL” declaration
  • “TRAFFICSIGNAL” body
  • Connecting the standard.lib
  • “WAIT” declaration
  • “WAIT” body
  • “SEQUENCE” first expansion level
  • Create a SFC diagram
  • Actions and transition conditions
  • “SEQUENCE” second expansion level
  • The result
  • PLC_PRG
  • TRAFFICSIGNAL simulation
• Visualizing a Traffic Signal Unit
  • Creating a new visualization
  • Insert element in Visualization
  • The other Traffic Lights
  • The TRAFFICSIGNAL case
  • The second traffic signal
  • The ON switch
  • Font in the visualization