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when button is pushed once light1 will turn on. when it is pushed a second time light1 will turn off and light2 will turn on. when the button is pressed a third time light2 will turn off and light3 will turn on. when the button is pushed a fourth time light3 will turn off and light4 will turn on. then when the push button is pressed agian light4 will turn off and light1 will turn back on. Any input on this would be very helpful. addresses are not needed and this is for an allen bradley program. Thanks