4. A warehouse has two conveyors to move freight from the material section to the shipping section. Two conveyors are required to work together to do this. (Lite_1 will be Conveyor 1 and Lite_2 will be Conveyor 2.) 5. When Start_1 is pressed, both Conveyor 1 and Conveyor 2 are to start together. However, when Stop_1 is pressed, only Conveyor 1 will stop immediately and Conveyor2 will continue to run. 6. Conveyor 2 must run anywhere from 8 to 30 seconds after Stop_1 is pressed. The reason for this is because we want to make sure that all of the freight is off of Conveyor 2 before it stops. 7. The set point for the delay on Conveyor 2 is entered manually by using the Thumbwheel located on the PLC Control Console. 8. The digital display beside the Thumbwheel is to show the time remaining before Conveyor 2 shuts off. The display must count from the set point to zero. 9. If the set point is not within the range of 8 to 30 seconds, then a warning light (Lite_3) will come on and none of the conveyors will run. 10. When there is 10 seconds remaining for Conveyor 2 to run Lite_4 will begin to flash, and then stay on steady when Conveyor 2 comes to a stop. 11. Build the required logic to operate the Lights on the Control Console, as per the above description
