Fanuc Series 15i/150i-MA (Programming) Operators Manual

B-63324EN/03 PROGRAMMING 17.CUSTOM MACRO
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17.10 WRITE-PROTECTING COMMON VARIABLES
By setting variable numbers for parameters Nos. 7029 to 7032, multiple
common variables (#500 to #999 or #200 to #499) can be protected,
with their attributes changed to READ-only. This protection is
effective against input/all clear from the macro screen using MDI and
writing with macro programs. If an attempt is made to execute WRITE
(on the left side) on the write-protected variables, using an NC program,
alarm PS0116 is issued.

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