Using RSLogix,

Enter the Ladder Logic:

$-$ An END rung automatically appears as the only rung in the LAD $2$ ladder logic window.

$-$ Add a new rung by selecting the appropriate icon from the $$User$$ instructions toolbar or by right$-$clicking on the END rung ID $(0000)$ and selecting $$Insert Rung$.$

$-$ Instructions $($XIC$,$ XIO, OTE, OTL, and OTU$)$ can be inserted within the rung by selecting the appropriate icon from the $$User$$ or $$Bit$$ instructions toolbar or by right$-$clicking on the rung and selecting $$Insert$$ and choosing the instruction from the list.

$-$ The instruction address is entered by typing it in place of the question mark $(?)$ that appears on top of the instruction $($i$.$e$.$ I:$0/1$ for terminal $1$ of the input module$).$

$-$ Enter a Description for the device the instruction is addressed to $($i$.$e$.$ input devices: NO LS$,$ NO MC PB$,$ NO SS$,$ NO PS$.$ Output devices: Motor Relay, Red PL$,$ Green PL$,$ Blue PL$.)$

$-$ Enter a Symbol for the device the instruction is addressed to $($i$.$e$.$ input devices: L$\_$S$,$ S$\_1,$ S$\_2,$ S$\_3,$ S$\_4,$ CP$\_$S$,$ FP$\_$S$,$ IP$\_$S$.$ Output devices: M$\_$R$,$ L$\_1,$ L$\_2,$ L$\_3)$

$-$ Using symbols will allow to refer to the device later by its symbol rather than by its address. In this lab you will be automating the operation of the conveyor system using timing instructions. The program is required to operate as follows:

$-$ The conveyor must run $($M$\_$R ON$)$ and remain running when pushbutton S$\_1$ is pressed and stop $($M$\_$R OFF$)$ and remain stopped when pushbutton S$\_2$ is pressed.

$-$ The conveyor must temporarily stop $($M$\_$R OFF$)$ when the limit switch L$\_$S is activated.

$-$ The green pilot light L$\_2$ is to flash ON and OFF in periods of $250$

milliseconds when the proximity sensor CP$\_$S detects a part. The light is to remain flashing until the limit switch L$\_$S is activated or pushbutton S$\_2$ is pressed.

$-$ The blue pilot light L$\_3$ is to flash ON and OFF in periods of $250$

milliseconds when the proximity sensor FP$\_$S detects a part. The light is to remain flashing until the limit switch L$\_$S is activated or pushbutton S$\_2$ is pressed.

$-$ When the proximity sensor IP$\_$S is activated, a $3$ second period must follow to ensure that the part clears the sensor followed by a temporary stop of the conveyor $($M$\_$R OFF$)$ for a period of $10$ seconds during which the red pilot light L$\_1$ is to be energized. Both the green and the blue pilot lights $($L$\_2$ and L$\_3)$ must temporarily stop flashing during this $10$ second period. The process must resume automatically after the $10$ second period elapses.