Getting Started P746/EN GS/G31
(GS) 3-
10
MiCOM P746
GS
1.5.3 Control and support settings
The control and support settings include:
− Relay configuration settings
− Open/close circuit breaker
− CT & VT ratio settings
− Reset LEDs
− Active protection setting group
− Password & language settings
− Communications settings
− Measurement settings
− Event & fault record settings
− User interface settings
− Commissioning settings
1.6 Password protection
The menu structure contains four levels of access. The level of access that is enabled
determines which of the relay’s settings can be changed and is controlled by entry of two
different passwords. The levels of access are summarized in Table 2. Level management,
including password description, management and recovery, is fully described in section
P746/EN CS.
Level Meaning Read Operation Write Operation
0 Read Some
Write
Minimal
SYSTEM DATA column:
Description
Plant Reference
Model Number
Serial Number
S/W Ref.
Access Level
Security Feature
SECURITY CONFIG
column:
User Banner
Attempts Remain
Blk Time Remain
Fallback PW level
Security Code (user
interface only)
Password Entry
LCD Contrast (user interface only)
1 Read All
Write Few
All data and settings are
readable.
Poll Measurements
All items writeable at level 0.
Level 1 Password setting
Select Event, Main and Fault (upload)
Extract Events (e.g. via MiCOM S1
Studio)
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