Time delay of 5s has given using timers which will make each cycle with 5s delay. Program runs continuously until STOP PB is pressed ![]() Timer 7 (T7) done bit is used to restart the cycle from beginning Same procedures followed to turn on further outputs.( Refer Tabular column for sequence of operation) Network 8 Parallel circuits are added to turn ON/OFF the output in up next sequence. Starting the timer to turn on output East Green, North-South-West is in red. Latching rung to operate the system through Master Start and Stop PB. Keyence PLC Programming for Snack Vending Machine Use PLC Type: KV Use PLC Software: KV BUILDER Comment of PLC Input: 0000 : to outp. ![]() You can build your own concept for making logic for this example.įollow below tabular column – Logic for the four way traffic light List of Inputs and Outputs Traffic Light Control using PLC Logic Explanation Network 1 We can take four directions (North, South, west, and east) with three output lamps (Green, Red, and Yellow). The traffic light is one of the classic examples in PLC ladder logic. Design ladder logic for 4 way-traffic light control system
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