Question: draw a ladder program for the following : A wending machine is selling biscuit packets. The rack in the wending machine can hold 1 0
draw a ladder program for the following :
A wending machine is selling biscuit packets.
The rack in the wending machine can hold packs
at once.
A sensor detects when each packet is taken out by
the customer.
When the rack empties, the light under the rack will
be switched ON in red to notify that it has to refilled.
Down counter can be used for this scenario.
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