"Design a PLC control system an write the logic to perform the following operation: A 3-Wire circuit using two start and two stop pushbuttons (stop 1, stop 2, start 1, start 2) will control a 120 VAC solenoid (SOLA). After SOLA has been energized for more than 5 seconds, another solenoid (SOLB) is energized. Both Solenoids will de-energize when one of the pushbuttons is momentarily pressed." Having a hard time with this, (Im in college) So far I have something like this: http://s1084.beta.photobucket.com/user/jgreco6/media/Untitled_zps18b785c6.png.html
