Can somebody help me with this? I have problem with the button!
This task must be solved using Sequential Function Chart (SFC), IEC 61131-3.
TASK
Create an SFC program to control a traffic light at an intersection.
Description:
You will program a traffic light that has three phases: Green, Yellow, and Red. The traffic light must follow these rules:
Green light is on for 10 seconds.
Yellow light is on for 3 seconds.
Red light is on for 10 seconds.
If the pedestrian button is pressed, the system must keep the red light on for 20 seconds during the next cycle.
After the pedestrian has “crossed,” the system should return to its normal cycle.
Basic Steps:
Initialization: Start by setting the traffic light to Red.
Green Phase: After 10 seconds, switch to Green.
Yellow Phase: After 10 seconds in the Green phase, switch to Yellow.
Red Phase: After 3 seconds in the Yellow phase, switch back to Red.
Loop: Repeat the cycle.
Use, for example, lamp symbols in the visualization module to simulate the traffic light.
You may also add a simple pedestrian light if desired.
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Can somebody help me with this? I have problem with the button!
This task must be solved using Sequential Function Chart (SFC), IEC 61131-3.
TASK
Create an SFC program to control a traffic light at an intersection.
Description:
You will program a traffic light that has three phases: Green, Yellow, and Red. The traffic light must follow these rules:
Green light is on for 10 seconds.
Yellow light is on for 3 seconds.
Red light is on for 10 seconds.
If the pedestrian button is pressed, the system must keep the red light on for 20 seconds during the next cycle.
After the pedestrian has “crossed,” the system should return to its normal cycle.
Basic Steps:
Initialization: Start by setting the traffic light to Red.
Green Phase: After 10 seconds, switch to Green.
Yellow Phase: After 10 seconds in the Green phase, switch to Yellow.
Red Phase: After 3 seconds in the Yellow phase, switch back to Red.
Loop: Repeat the cycle.
Use, for example, lamp symbols in the visualization module to simulate the traffic light.
You may also add a simple pedestrian light if desired.
Try watching this video in it's entirety, looks like it should have what you need to get running.
https://www.youtube.com/watch?v=kyj36oRpA04