Part E $[1\%]$:

Consider the pneumatic cylinder A$,$ associated solenoid controlled valve and magnetic reed limit switches to interrogate the cylinders position, as depicted below. Implement a ladder logic PLC program that extends $($A$+)$ and retracts $($A$-)$ the cylinder continuously after the start button has been momentarily pressed. The process stops immediately if the stop button is momentarily pressed.

$\backslash$table$[[$PLC Inputs Required,PLC Outputs Required$],[$Start switch$*[$X$000],$Solenoid $($A$+)[$Y$000]],[$Stop switch$**[$X$001],$Solenoid $($A$-)[$Y$001]],[$Cylinder A$-[$X$002],],[$Cylinder A$+[$X$003],]]$

Start switch is nomally open & spring retumed

$**$ Stop switch is nomally closed & spring returned