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Chapter 3
Configure the 1444 Dynamic Measurement Module
Table 15 - Module Functionality
Parameter
Values
Alarm Status
Setting
Alignment
Dynamic
Static
Compliance
Setting
Requirement
None
API-670 Compliant
100
Comment
The module output (controller input) Status Assembly includes an array of 13 Alarm
Alignment Mode
Status records. Each record provides the status of a Voted Alarm. This control
determines how this array associates with the Voted Alarms.
0
Dynamic:
1
Static:
See
further detail and examples of Alarm Status alignment.
For general monitoring applications that do not apply protection requirement, select
Compliance Mode
"None".
Select API-670 Compliant or higher to apply restrictions to the configuration that help
0
to define an API-670 machinery Protection Systems standard-compliant
configuration.
1
• The API-670 standard allows a great deal of variation in many aspects of the
When the Compliance Requirement is set to API-670, the
ProtectionLoopTimeWarning status is considered in the ModuleSummary status. The
ProtectionLoopTimeWarning status bit is set when DSP critical alarms loop cycle time
is >100 milliseconds, which means that the module cannot satisfy the performance
requirements of API-670.
Rockwell Automation Publication 1444-UM001D-EN-P - June 2018
If set to Dynamic, the Alarm Status records are allocated based on relays.
Choose Dynamic Association if multiple relays are assigned to the same voted
alarm, but for different outputs (alert, danger, transducer fault).
Static association allocates Alarm Status records to Voted Alarms in sequence.
AlarmStatus[0] presents the status of VotedAlarm[0], AlarmStatus[1] presents the
status of VotedAlarm[1], and so on.
Choose Static Association if relays are not used, or is always assigned to unique
Voted Alarms, and the application requires Voted Alarms to be routinely added
(enabled) or removed (disabled).
When Alarm Status Alignment is static each voted alarm can have just one output,
"Alarm Status to Activate On" defined (Alert, Danger, Transducer Fault). If multiple
statuses are selected for any Voted Alarm, the control is set to Dynamic and
disabled.
Alarm System Overview on page 211
and
configuration. So setting this attribute to API-670 Compliant or higher does not by
itself help to make sure that a configuration is API-670 compliant. API -670
compliance levels require real-time measurements. So the multiplexed
personalities are not enabled when compliance levels greater than None are
selected.
Alarm Status Structure on page 277
for
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