IDEC MICROSmart FC6A Series Ladder Programming Manual page 579

28: U - M I
SER DEFINED ACRO NSTRUCTION
(9) Disable a password protection.
The argument settings cannot be changed when protection is enabled. To change the argument settings, click this button
and enter the password to disable protection.
FC6A S MICROS L P M FC9Y-B1726 28-5
ERIES MART ADDER ROGRAMMING ANUAL