Emerson Rosemount 752 FOUNDATION, Справочное руководство

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19
Reference Manual
00809-0100-4377, Rev CA
Configuration
January 2018
Configuration
FD CHECK ALARMS
An advisory alarm indicates informative conditions that do not have a direct impact on the device's
primary functions. There are five parameters associated with ADVISE_ALARMS, they are described
below:
FD_CHECK_MAP
The FD_CHECK_MAP parameter contains a list of informative conditions that do not have a direct impact
on the device's primary functions. Below is a list of the advisories with the highest priority first:
FD_ CHECK _MASK
The FD_CHECK _MASK parameter will mask any of the failed conditions listed in FD_CHECK _MAP. A bit
on means the condition is masked out from alarming and will not be reported.
FD_ CHECK _PRI
FD_CHECK _PRI designates the alarming priority of the ADVISE_ALM, see Table B-3 on page 38 . The
default is zero and the recommended values is one.
FD_ CHECK _ACTIVE
The FD_CHECK _ACTIVE parameter displays which of the advisories is active. Only the advisory with the
highest priority will be displayed. This priority is not the same as the FD_CHECK _PRI parameter
described above. This priority is hard coded within the device and is not user configurable.
FD_ CHECK _ALM
FD_CHECK _ALM is an alarm indicating advisory alarms. These conditions do not have a direct impact on
the process or device integrity.
Recommended actions for field diagnostics alerts
FD_ RECOMMEN _ACT
The FD_RECOMMEN_ACT parameter displays a text string that will give a recommended course of action
to take based on which type and which specific event of the Field Diagnostics alerts are active. See
Table
2-1 on page 16 for more information.
2.9 LCD transducer block
The LCD meter connects directly to the Rosemount 752 electronics F
OUNDATION
Fieldbus output board.
The meter indicates output and abbreviated diagnostic messages.
The meter features a four-line display and alarm. The 0–100 percent scaled bar graph is not used in the
Rosemount 752. The first line of five characters displays the output description, the second line of seven
digits displays the actual value, the third line of six characters displays engineering units and the fourth
line displays “Error” when the indicator is in alarm. The LCD meter can also display diagnostic messages.
Each parameter configured for display will appear on the LCD for a brief period before the next parameter
is displayed. If the status of the parameter goes bad, the LCD will also cycle diagnostics following the
displayed variable:
Table 2-5. Check Alarms
Alarm Priority
Check 1