The absolute addresses for inputs$/$outputs are given as

in the picture on the right:

$12\mathrm{.}0$ : Digital input bit connected to the signal that

needs to be monitored.

$12\mathrm{.}1$: Digital input bit connected to the key to

acknowledge the visual indicator.

M$100\mathrm{.}0$: The memory bit for flashing.

$12\mathrm{.}2$: Digital input bit connected to the key to

acknowledge the hooter.

Q$2\mathrm{.}0$: Digital output bit connecting to the indicator.

Q$2\mathrm{.}1$: Digital output bit connecting to the hooter.

M$100\mathrm{.}1$: Memory bit used for the first Set$/$Reset$.$

M$100\mathrm{.}2$: Memory bit used for the second Set$/$Reset$.$

Requirements:

STEP $1-$ Write a PLC program in LAD to implement the logics in the control system flow chart. More than

one network could be used.

STEP $2-$ Write a PLC program in Statement List $($STL$)$ to implement the logics in the control system flow

chart.