Emerson Rosemount 752 FOUNDATION, Справочное руководство

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16
Reference Manual
00809-0100-4377, Rev CA
Configuration
January 2018
Configuration
Recommended actions for Plantweb alarms
RECOMMENDED_ACTION
The RECOMMENDED_ACTION 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 Plantweb alarms is active.
Table 2-1. RB.RECOMMENDED_ACTION
2.8.4 Field diagnostics alerts
The Resource Block will act as a coordinator for Field Diagnostic Alerts. There will be four alarm
parameters (FD_FAILED_ALARM, FD_OFFSPEC_ALARM, FD_MAINT_ALARM, and FD_CHECK_ALARM)
that will contain information regarding some of the device errors that are detected by the transmitter
software. There will be a RECOMMENDED_ACTION parameter that will be used to display the
recommended action text for the highest priority alarm and a HEALTH_INDEX parameters (0–100)
indicating the overall health of the transmitter. FD_FAILED_ALARM will have the highest priority followed
by FD_OFFSPEC_ALARM, FD_MAINT_ALARM and FD_CHECK_ALARM will be the lowest priority.
FD failed alarms
A failure alarm indicates a failure within a device that will make the device or some part of the device
non-operational. This implies that the device is in need of repair and must be fixed immediately. There
are five parameters associated with FD_FAILED_ALARMS specifically, they are described below:
FD_FAILED_MAP
FD_FAIL_MAP parameter maps conditions to be detected as active for FD_FAIL_ALARM category. Thus
the same condition may be active in all, some, or none of the four alarm categories. Below is a list of the
failures with the highest priority first:
FD_FAILED_MASK
FD_FAIL_MASK parameter will mask any of the failed conditions listed in FD_FAILED_MAP. A bit on
means the condition is masked out from alarming and will not be reported.
FD_FAILED_PRI
Designates the alerting priority of the FD_FAILED_ALM, see Table B-3 on page 38 The default is zero and
the recommended value are between eight and 15.
FD_FAILED_ACTIVE
FD_FAIL_ACTIVE parameter displays the active alarms is active that are being selected for this category.
Only the alarm with the highest priority will be displayed. This priority is not the same as the
FD_FAILED_PRI parameter described above. This priority is hard coded within the device and is not user
configurable.
Failed/maint/advise active event Recommended action text string
None No action required
LOI failure Check display connections and sensor connections
Electronics failure Replace the Fieldbus electronics board
Table 2-2. FD Failure Alarms
Alarm Priority
Electronics failure 1