Section 5
Using the HMI
5.1
Using the local HMI
GUID-235278D0-97C9-4F0F-A521-C7DFA8600C4E v7
At delivery, logging on is not required and the user has full access until users and
passwords are created with PCM600 and written into the IED or Centralized
Account Management is enabled.
Commands, changing parameter values and resetting indications, for example, are
actions requiring password when the password protection is activated. Reading
information on the LHMI is always allowed without password.
Utility security policies and practical consideration should always
be taken on the feasibility of using passwords. In emergency
situations, the use of passwords could delay urgent actions. On the
other hand when security issues must be met, the two factors must
be seriously considered.
Do not switch off the auxiliary power supply to the IED before
changes, for example, setting parameter or local/remote control
state changes are saved.
IEC13000282-1-en.vsd
GUID-6B1C3B17-FFD1-4D3C-A50B-29524361C368 V1 EN-US
Figure 14:
Saving changes animation
Parameter saving is indicated by an animation in the lower right of the screen. As
long as this animation is shown, saving is in progress.
5.1.1
On-screen keyboard
GUID-725842B8-0941-4591-B724-71F016B21C1A v2
The on-screen keyboard is a three-row button pad where all the visual ASCII
characters are selectable buttons. The editing location is marked with a cursor.
1MRK 500 128-UEN B
Section 5
Using the HMI
650 series 2.2 IEC
39
Operation manual
