Endress+Hauser Fieldbus Levelflex M FMP43 Operating Instructions Manual page 34

Operation
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5.2.2 Display symbols
The following table describes the symbols that appear on the liquid crystal display:
Symbol Meaning
ALARM_SYMBOL
This alarm symbol appears when the device is in an alarm condition. If the symbol flashes, this indicates a
warning.
LOCK_SYMBOL
This lock symbol appears when the device is locked, i.e. if no entries are possible.
COM_SYMBOL
This communication symbol appears when data are being transmitted e.g. via HART, PROFIBUS PA or
FOUNDATION Fieldbus.
SIMULATION_SWITCH_ENABLE
This communication symbol appears when simulation in FOUNDATION Fieldbus is enabled via the DIP
switch.
5.2.3 Key assignment
The operating elements are located inside the housing and are accessible for operation by opening
the lid of the housing.
Function of the keys
Key(s) Meaning
O V Navigate upwards in the selection list
or
Edit numeric value within a function
S W
Navigate downwards in the selection list
or
Edit numeric value within a function
X Z
or Navigate to the left within a function group
F
Navigate to the right within a function group, confirmation
O F
and
or Contrast settings of the LCD
S F
and
Hardware locking/unlocking
O S F
After hardware locking, operation via display and communication is not possible!
and and
The hardware can only be unlocked via the display. A release code must be entered for this
purpose.
Levelflex M FMP43 with FOUNDATION Fieldbus
Endress+Hauser