There are three red, yellow and green signal lights in the north and south of the intersection, and the six lights reciprocate in a certain time sequence.
North-south direction
North and South Green (8s), East and West (8s)
North and South Yellow (2.1s), East and West (2.1s),
North and South Red (10.1s), East Green (8s), East Yellow (2.1s)
East-West Red (10.1s), North-South Green (8s), North-South Yellow (2.1s)
East Green (8s), North and South Red (8s)
East and West Yellow (2.1s), North and South Red (2.1s)
X000——Start and cycle starting point, north and south green, east and west red.
Y000——North-South green output
Y001——North-South yellow output
Y002——East red output
Y003——East-West green output
Y004——East-West yellow output
Y005——North-South red output
M0——The intermediate relay keeps the state of X000.
T0——East red timing
T1——East and West Green Timing
T2——East and West timing
T3——North-South Green Timing
T4——North and South yellow timing
T5——North and South Red Timing
PLC ONE 