Build the ladder logic program to turn ON or OFF the lamp using single push buttons using one shot rising (ONR) instruction.
One shot Rising is used to develop a signal/Pulse that is exactly one scan in duration. When a signal is applied to a contact/Push Button, no matter how long the signal stays on, a single pulse of one scan length is generated after the one shot.
Start/Stop Push Button is connected with one shot rising bit with the output memory bit.
Previous rung output bit and Lamp output bit are connected in X-OR gate logic to make the condition possible. Interlocking of output bit is used to turn the output ON/OFF in different condition.
The above explained ladder logic for lamp turn ON/OFF using single push button is for example only. We can use this example program to understand the working of Push Buttons, one shot rising in AB PLC.
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