Emerson Rosemount 752 FOUNDATION, Reference Manual, Page: 23 / 48

17
Reference Manual
00809-0100-4377, Rev CA
Configuration
January 2018
Configuration
FD_FAILED_ALM
FD_FAIL_ALM indicates a failure within a device which makes the device non-operational. FD_FAIL_ALM
parameter is used primarily to broadcast a change in the associated active conditions, which are not
masked, for this alarm category to a Host System.
FD OFFSPEC ALARMS
An offspec alarm indicates that the device or some part of the device needs maintenance soon, if the
condition is ignored the device will eventually fail. There are five parameters associated with FD OFFSPEC
ALARMS, they are described below:
FD_OFFSPEC_MAP
FD_OFFSPEC_MAP parameter maps conditions to be detected as active for FD_ OFFSPEC_ALARM
category. Thus the same condition may be active in all, some, or none of the four alarm categories.
FD_ OFFSPEC _MASK
The FD_OFFSPEC_MASK parameter will mask any of the failed conditions listed inFD_OFFSPEC_MAP. A
bit on means the condition is masked out from alarming and will not be reported.
FD_ OFFSPEC _PRI
FD_OFFSPEC_PRI designates the alarming priority of the FD_OFFSPEC _ALM, Table B-3 on page 38 The
default is zero and the recommended values are three to seven.
FD_ OFFSPEC _ACTIVE
FD_ OFFSPEC _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_ OFFSPEC _PRI parameter described above. This priority is hard coded within the device and is not
user configurable.
FD_ OFFSPEC _ALM
An alarm indicating the device needs maintenance soon. If the condition is ignored, the device will
eventually fail. FD_ OFFSPEC _ALM parameter is used primarily to broadcast a change in the associated
active conditions, which are not masked, for this alarm category to a Host System.
FD MAINT ALARMS
A maintenance alarm indicates informative conditions that do not have a direct impact on the device's
primary function(s).There are five parameters associated with MAINT_ALARMS, they are described
below:
FD_MAINT_MAP
The FD_MAINT_MAP parameter contains a list of conditions that do not have a direct impact on the
device's primary function(s).
FD_MAINT_MASK
The FD_MAINT_MASK parameter will mask any of the failed conditions listed in FD_MAINT_ENABLED. A
bit on means that the condition is masked out from alarming and will not be reported.
Table 2-3. Maintenance Alarms/Priority Alarm
Failed/maintain/advise active event Priority
LOI failure 1