Emerson Rosemount 3051CF Series Reference Manual page 31

Reference Manual
00809-0100-4774
Mapping alert conditions
You can map any of the alert conditions into any of the NE107 status signals using the
following parameters.
1. FD_FAIL_MAP assigns a condition to FD_FAIL_ACTIVE.
2. FD_OFFSPEC_MAP assigns a condition to FD_OFFSPEC_ACTIVE.
3. FD_MAINT_MAP assigns a condition to FD_MAINT_ACTIVE.
4. FD_CHECK_MAP assigns a condition to FD_CHECK_ACTIVE.
Masking alert conditions
You can mask any combination of status signals. When a status signal is masked, it will not
be annunciated to the host system but will still be active in the device and viewable in the
device DD or DTM. The recommended action, FD_RECOMMEN_ACT will continue to show
the recommended action for the most severe condition or conditions detected as
determined by the status signal priority. This allows maintenance personnel to view and
correct device conditions without annunciating the conditions to operational staff. They
are masked using the following parameters:
1. FD_FAIL_MASK to mask FD_FAIL_ACTIVE status signals
2. FD_OFFSPEC_MASK to mask FD_OFFSPEC_ACTIVE status signals
3. FD_MAINT_MASK to mask FD_MAINT_ACTIVE status signals
4. FD_CHECK_MASK to mask FD_CHECK_ACTIVE status signals
If you configure a consolidated diagnostic condition to annunciate in multiple status signal
categories, it can be masked in one or several status signal categories, but left active and
annunciate in others. This provides significant flexibility but can lead to confusion when
responding to alerts. Generally alert conditions are assigned to only a single status signal.
Alert priorities
NE107 alerts can have any of 16 different condition priorities ranging from the lowest
priority of 0 to the highest priority of 15. This is done using the following parameters.
1. FD_FAIL_PRI to specify the priority of FD_FAIL_ACTIVE status signals
2. FD_OFFSPEC_PRI to specify the priority FD_OFFSPEC_ACTIVE status signals
3. FD_MAINT_PRI to specify the priority FD_MAINT_ACTIVE status signals
4. FD_CHECK_PRI to specify the priority FD_CHECK_ACTIVE status signals
Note
F
OUNDATION
signals at manufacturing. Zero priority behavior shows any active device diagnostics in the
DD or DTM, but alerts are not generated based on the diagnostic conditions or published
on the bus. An alert priority of two or higher is required for every status signal category
where status signals are to be published on the bus. Check with your host provider to
Reference Manual
A FD_CHECK_ACTIVE status signal indicates a transducer block is not in "Auto"
mode. This may be due to configuration or maintenance activities.
™
Fieldbus standards require that NE 107 alert priority is set to zero for all status
Configuration
July 2020
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