6.11.3 Change-Enabling Function
Although it is possible to select any data point in the menu tree and read the
associated value by pressing the keys, it is not possible to switch directly to the
input mode. This safeguard prevents unintended changes in the settings.
There are two ways to enter the input mode.
●
Global change-enabling function: To activate the global change-
enabling function, set the LOC: Param. change enabl. parameter to
Yes (menu tree: Oper/CtrlTest/LOC).
The change can only be made after the password has been entered.
Thereafter, all further changes – with the exception of specially protected
control actions (see Section 6.11.8, (p. 6-29)) – are enabled without
entering the password.
●
Selective change-enabling function: Password input prior to any setting
change.
This setup is designed to prevent accidental output and applies even when
the global change-enabling function has been activated. The following
example is based on the factory-set password. If the password has been
changed by the user (see Section 6.11.9, (p. 6-31)), the following
description will apply accordingly.
P631
6 Local Control (HMI)
6-18 P631/EN M/R-11-C // P631-310-650
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