PamaGlawe: four-light junction demo

Automatic operation requires PamaGlawe 2.61.513 or later.
Version 2.61.512 supports manual inputs only.

1. Open PamaGlawe_Demo_Kreuzung.jvz and save under your own project name.
2. Press F5, then Start on the virtual PLC panel.
3. Nord/Sued (north/south) and Ost/West (east/west) alternate their green phases.
4. Ampelpause: east/west is the minor road; amber flashes 1 second on,
   1 second off. North/south remains dark. Keep the virtual PLC running.
5. Normalbetrieb: resume the automatic sequence, beginning with all red.
6. Pause freezes the program; Weiter resumes it. Stop ends execution.
7. For manual tests, use Pause or Stop first. Type a number and press Enter:
   0 off, 1 red, 2 amber, 3 red/amber, 4 green.
   Each input controls both lights of the corresponding road.
8. Exit and restart Play mode to reload the initial values.

No communication drivers or external simulator are required in 2.61.513.
Addresses are local signal identifiers, not a Modbus connection.
The program is editable in the V-SPS object's properties.
This is a learning model, not a real traffic controller.
