
FANUC PMC-MODEL SD7
Programming Manual
01 01.11.26
Hanaoka
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A-78550E
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(2) Override Mode
In this mode, the ladder program and the I/O devices does not overwrite
the signals which are forced to be changed. You can specify the override
mode into arbitrary %I/%Q addresses. The %I/%Q addresses which is
not set the override mode is in the forcing mode.
Ex) I/O UNIT-MODEL A is connected with %I1. And %I1 is forced to be
changed.
Therefore, the forced I/O function for %I addresses in the Override mode
can be used to debug the ladder program with some I/O devices. If you set
the override mode into %Q addresses, The value forced to be changed is
output to the I/O devices.
I/O Unit-MODEL A NC
%I1 = 1 %I1 = 1
•
The %I1 is forced to 0
I/O Unit-MODEL A NC
%I1 = 1 %I1 = 0
I/O Unit-MODEL A NC
%I1 = 1
%I1 = 1
•
X0 is set in Override mode.
The input value from the I/O UNIT-MODEL A is disabled.
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