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. You can build your own concept for making logic for this example.
We can take four directions (North, South, west, and east) with three output lamps (Green, Red, and Yellow).
Latching rung to operate the system through Master Start and Stop PB. The traffic light is one of the classic examples in PLC ladder logic. 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 The traffic light is one of the classic examples in PLC ladder logic. Design ladder logic for 4 way-traffic light control system Question: LogixPro Traffic Control Lab Exercise 1 - Traffic Control utilizing 1 Timer From the Simulations Menu at the top of the LogixPro screen, Select the Traffic Light Simulation 0:2.00 0:204 0:2/01 0:2/05 0:2/02 0:2/06 Utilizing a single timer, employ the use of Word Comparison instructions to control our simulated traffic light.
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