Azbil C15

6-26
Chapter 6. SETTINGS DURING OPERATION
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Password lock function
This controller has a password lock function using a password in addition to the
key lock function. It offers a double security so that the key lock setting itself cannot
be changed by unauthorized operators. In password lock function, the setting to
disable the change in key lock function cannot be displayed.
The passwords are made by two groups of numerical values. Each value consists
of 4 digits. The setting can be changed only when the two groups (1A and 1B, 2A
and 2B) are matched. In order to prevent incorrect password setting, the password
cannot be set if the setting value is set to 5 in the password display. In addition, the
setting value of this password display is returned to zero (0) at every power supply
ON.
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Password setup flow
Setting of password display The status is changed to the one under which the password can be
set.
Setting of passwords (1A, 2A)
When PS1A and PS2A are set, the PS1B is same as the PS1A, and
the PS2A is same as the PS2B.
Setting of password (1B, 2B)
When the PS1B and the PS2B are set to the values different from
the ones of PS1A and PS2A, the mode is changed to the password
lock status and the setting cannot be made.
Cancellation of password lock
When the PS1B is set to the same value as the PS1A in the
password setting and the PS2B is set to the same value as the
PS2A, the password lock status is cancelled.
In addition, when setting to the mode where the password setting
cannot be made, set the setting value of PASS password display to
the value other than 5.