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Reference Manual
00809-0400-4728, Rev AA
June 2011
Rosemount 644
3-6
The following table displays all possible configurations of the
WRITE_LOCK parameter.
FEATURES_SEL
FEATURES_SEL is used to turn on any of the supported features. The
default setting of the 644 does not select any of these features. Choose
one of the supported features if any.
MAX_NOTIFY
The MAX_NOTIFY parameter value is the maximum number of alert reports
that the resource can have sent without getting a confirmation, corresponding
to the amount of buffer space available for alert messages. The number can
be set lower, to control alert flooding, by adjusting the LIM_NOTIFY
parameter value. If LIM_NOTIFY is set to zero, then no alerts are reported.
PlantWeb
™
Alerts
The alerts and recommended actions should be used in conjunction with
“Operation and Maintenance” on page 3-15.
The Resource Block will act as a coordinator for PlantWeb alerts. There will
be three alarm parameters (FAILED_ALARM, MAINT_ALARM, and
ADVISE_ALARM) which will contain information regarding some of the device
errors which are detected by the transmitter software. There will be a
RECOMMENDED_ACTION parameter which 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.
FAILED_ALARM will have the highest priority followed by MAINT_ALARM
and ADVISE_ALARM will be the lowest priority.
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 FAILED_ALARMS specifically, they are described below.
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
FEATURE_SEL
SW_SEL bit
WRITE_LOCK
WRITE_LOCK
Read/Write
DEFINE_WRITE_LOCK
Write access
to blocks
0 (off) 1 (unlocked) Read only NA All
1 (on) 1 (unlocked) Read/Write NA All
1 (on) 2 (locked) Read/Write Physical Function
Blocks only
1 (on) 2 (locked) Read/Write Everything None