Emerson Rosemount 644 FOUNDATION Reference Manual page 17

Temperature transmitter with fieldbus protocol
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Reference Manual
00809-0400-4728, Rev CA
FAILED_ENABLED
This parameter contains a list of failures in the device which makes the device non-operational that will
cause an alert to be sent. Below is a list of the failures with the highest priority first.
1. Electronics
2. NV memory
3. HW/SW incompatible
4. Primary value
5. Secondary value
FAILED_MASK
This parameter will mask any of the failed conditions listed in FAILED_ENABLED. A bit on means that the
condition is masked out from alarming and will not be reported.
FAILED_PRI
Designates the alerting priority of the FAILED_ALM, see
the recommended value are between 8 and 15.
FAILED_ACTIVE
This parameter displays which of the alarms is active. Only the alarm with the highest priority will be
displayed. This priority is not the same as the FAILED_PRI parameter described above. This priority is hard
coded within the device and is not user configurable.
FAILED_ALM
Alarm indicating a failure within a device which makes the device non-operational.
MAINT_ALARMS
A maintenance alarm indicates 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
MAINT_ALARMS, they are described below.
MAINT_ENABLED
The MAINT_ENABLED parameter contains a list of conditions indicating the device or some part of the
device needs maintenance soon.
Below is a list of the conditions with the highest priority first.
1. Primary value degraded
2. Secondary value degraded
3. Diagnostic
4. Configuration error
5. Calibration error
MAINT_MASK
The MAINT_MASK parameter will mask any of the failed conditions listed in MAINT_ENABLED. A bit on
means that the condition is masked out from alarming and will not be reported.
Configuration
"Alarm priority" on page
Configuration
September 2018
17. The default is 0 and
11

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