Copyright Goodheart-Willcox Co., Inc. 202 Programmable Logic Controllers: Hardware and Programming 38. The master switch is the master reset switch. A. If the green pushbutton is pressed four times and the red pushbutton twice, the white pilot light and the left motor will turn on for 5 seconds. B. If the green pushbutton is pressed fi ve times and the red pushbutton three fi times, the green pilot light and the right motor will turn on for 10 seconds. C. If the green and/or red pushbuttons are pressed for a total of 15 times, both motors will run and both the white and green pilot lights will turn on and stay on until the MSW switch is opened. 39. Use the MSW switch for reset. Close the master switch to start the following sequence of events: A. Motor number one runs for 5 seconds and then turns off. B. Next, motor number two runs for 10 seconds and then turns off. C. Finally, after one second, both motors run for 7 seconds and then turn off. The sequence of events continues (i.e., event one starts again) until the master switch is opened. 40. When the start pushbutton number 1 is pressed twice and pushbutton 2 is pressed once, the following sequence of events occurs: A. Motor number one and red pilot light turn on. B. After six seconds, motor number two turns on. C. Finally, ten seconds after motor number two turns on, the green pilot light turns on and motor number one and red pilot light turn off.