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Automating Manufacturing Systems - Process Control and ...

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plc flowchart - 11.20<br />

3.<br />

start<br />

ST1<br />

is<br />

remote or<br />

button pushed?<br />

no<br />

yes<br />

ST2<br />

turn on door close<br />

ST3<br />

is<br />

remote or<br />

button or bottom<br />

limit pushed?<br />

no<br />

ST4<br />

is<br />

light beam<br />

on?<br />

yes<br />

ST5<br />

yes<br />

turn off door close<br />

no<br />

ST6<br />

is<br />

remote or<br />

button pushed?<br />

ST7<br />

yes<br />

turn on door open<br />

ST8<br />

ST9<br />

is<br />

remote or<br />

button or top<br />

limit pushed?<br />

yes<br />

turn off door open<br />

no

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