Make a lamp follow a button

Getting the lesson ready…

Your first real rule: the lamp copies the button.

Make a lamp follow a button: the words you will learn

becomes: the name on the left becomes what is on the right

:=

a test of one tag in a rung: passes power while it is ON

normally open contact (NO, XIC)

the end of a rung: turns its tag ON while power reaches it

coil (OTE)