Transmission Of The Event Messages; To The Bus; Protection Of The Settings Against Unauthorized Changes - Endress+Hauser Levelflex FMP55 Operating Instructions Manual

Levelflex FMP55 FOUNDATION Fieldbus
Endress+Hauser
4.
Got to the Offspec Map column and activate the checkbox of the respective bit (in
the example: Configurable Area Bit 1). Confirm the selection by pressing the Enter
key.
A change of the error category of In safety distance does not affect an error which is
already present. The new category is only assigned if a new error of this type occurs
after the change.
12.8.4 Transmission of the event messages to the bus
Event priority
Event messages are only transmitted to the bus if their priority is between 2 and 15.
Events of priority 1 are indicated on the display but not transmitted to the bus. Events of
priority 0 are ignored. By default, the priority is 0 for all events. The priority can be
adjusted individually for each allocation parameter. This is done by the following four
priority parameters:
Suppression of individual events
For individual events, the transmission to the bus can suppressed by the use of a mask.
The corresponding events will be displayed but not transmitted to the bus. In FieldCare,
this mask can be found at Expert → Communication → Field diagnostics → Alarm
broadcast enable. This mask functions as a negative mask, which means that, if a field is
marked, the corresponding events will not be transmitted to the bus.
12.9 Protection of the settings against unauthorized
changes
There are two ways to protect the settings against unauthorized changes:
• Via locking switch (hardware locking)
• Via operating menu (software locking)
• Via block operation:
– Block: DISPLAY (TRDDISP); parameter: Define access code (define_access_code)
– Block: EXPERT_CONFIG (TRDEXP); parameter: Enter access code
(enter_access_code)
Commissioning (block-based operation)
97