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If only one NC-Start
contact
exists, the programme
may be written
in the following
way:
u
El8
(NC-Start
button)
=
M2448
UN
El8
(NC-Start
button)
=
M2464
The following
program
is wrong
and should
not be implemented
u
El8
(NC-Start
button)
=
M2448
UN M2448
=
M2464
A defect
in the memory
cell M 2448 cannot
be recognised
with
this method
of programming!
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