1 agenda 1. eemua 191 partial review 2. what is cams for his? 3. demo * eemua 191 is copyrighted...
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AGENDA1. EEMUA 191 Partial
Review2. What is CAMS for HIS?
3. Demo* EEMUA 191 is
copyrighted material and will not be distributed.
Terry A. NelsonEngineering Mgr. – Power Group
12530 W. Airport Blvd.Sugar Land, TX 77478Phone: (281) 340-3921E-mail: terry.nelson@us.yokogawa.com
EEMUA 191 Overview
& CAMS for HIS
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EEMUA 191 Overview
EEMUA 191 – Edition 2 (2007) www.eemua.org Alarm Systems
A guide to Design, Management and Procurement Members Abnormal Situation Management Consortium (ASM)
endorsement Key Design Principles Alarms Useful and Relevant Adequate Time for Operator Response Characteristics of a good alarm Safety Related Alarms Reliability Claims
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EEMUA 191 Overview – Cont. Signals that should not be alarmed Alarm Priority Bands Alarm Settings Written Rules 1 Alarm every 2 minutes – 50% utilization Elimination of Overload Color coding Priority Band Guidelines Alarm system size Standing and Shelved Alarms Performance Level 5 (Predictive) Cost of poor alarm performance
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CAMS DEMO 1. Display Filtering 2. Dynamic Filter – Operator / Engineer Built 3. Eclipsing 4. Shelving / Continuous 5. Shelving / One-Shot 6. Shelving / Auto 7. Suppression 8. Load Shedding
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1. What is CAMS for HIS (Human Interface Station)?
Stands for Consolidated Alarm Management System Consolidation of real-time alarms
Acquired from DCS(CS 3000), SIS(ProSafe-RS), AMS(PRM), NCS/PLC(STARDOM )
Consolidation of historical alarms and events A&E and SOE
Consolidation of alarm-related applications Alarm design Real-time monitor Historical viewer Change management Statistical analysis and report
To deliver the necessary alarms to the right person at the right time
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2. CAMS for HIS Functional Flowchart
Normalization Normalization Normalization Normalization
Re-classification Re-classification Re-classification Re-classification
Attribute Addition
Acquisition Acquisition Acquisition Acquisition
DCS(CS3000)
SIS(ProSafe-RS)
Asset Mngmt. System(PRM)
NCS/PLC(STARDOM)
Suppression Suppression Suppression Suppression
Eclipsing Eclipsing Eclipsing Eclipsing
Shelving Shelving Shelving Shelving
Load Shedding Load Shedding Load Shedding Load Shedding
Filtering Filtering Filtering Filtering
Sorting Sorting Sorting Sorting
Grouping Grouping Grouping Grouping
OperatorMaintenanceTechnician System Engineer Plant Manager
Ala
rm D
esig
n
SystemEngineer
ChiefOperator
Op
era
tion
An
aly
sis
Historical A&E HDDAlarm Master DBReal-time A&E on memory
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Acquisition: Acquiring all available A&E online real-time Normalization: Removing dialect or mismatch of
information Re-classification: Re-classifying alarms or events
Alarm prioritization: Prioritizing alarms based on purpose &consequence
Attribute addition: Adding identifiers and value-added information
Grouping: Unifying redundant alarms Suppression: Suppressing nuisance alarms
Filtering: Extracting necessary alarms Sorting: Sorting alarms based on urgency or
importance Eclipsing: Integrating repeated alarm in a single line Shelving: Shelving unnecessary alarms temporarily Load shedding: Activating predefined filter automatically
in case of alarm flooding
3. Feature functions of CAMS for HIS
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Acquisition
Acquisition: Acquiring various types of alarms and events from sub-systems Types of alarms
DCS (Process alarms, System alarms, etc..) SIS (Safety related alarms) Asset management system (Field device alarms) Network Control System (Process alarms)
Types of interfaces Proprietary control bus interface OPC A&E Serial port logger (under consideration) FTP (under consideration), etc.
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Normalization & Re-classification
Normalization: Removing dialect or mismatch of information Data arrangement Standardizing terminology (e.g. High, HI, H+) Level of alarm priority Level of plant hierarchy, etc.
Re-classification: Re-classifying alarms or events Examples
Correct events that were incorrectly classified as alarms
Vice versa
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Attribute Addition Attribute addition: Adding identifiers and value-added information
Identifiers Purpose: safety, environmental, financial Consequence: very large, large, medium, small Time to respond: urgent, quick, routine Plant hierarchy: plant, area, unit, line Alarm priority: critical, high, medium, low, logging Type of user: operator, maintenance, production staff
Value-added information Reason of alarm occurrence Role-based action to be taken Past action
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EclipsingEclipsing: Integrating repeated alarm in a single line
Chattering alarms can be visually hidden. Alarm shown after Eclipsing will be the one with the highest
priority and latest time stamp.
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Grouping & Suppression
Grouping: Unifying redundant alarms Same alarms acquired from different sub-
systems
Suppression: Suppressing nuisance alarms Suppressing obvious alarms statically (e.g.
alarms generated by stopping plant)
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Filtering & Sorting
Filtering: Extracting necessary alarms By timestamp, plant hierarchy, alarm priority,
user name, purpose, consequence, etc.
Sorting: Sorting alarms based on urgency or importance By timestamp, alarm priority, time to respond,
etc.
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Examples of Filters SIS: Alarms from SIS Field devices: Alarms from PRM Stardom: Alarms from Stardom System: DCS system alarms Process: DCS process alarms
Plant A: Alarms in plant hierarchy Alarm Priority: High/Medium/Low Time to Respond: Urgent/Quick/Routine Purpose: Safety/Environmental/Financial
Operating Shifts: Alarms in each shift Start Up: Important/Unimportant
Combination filter also can be created.
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Shelving
Shelving: Moving unnecessary alarms to the shelf temporarilyExamples of shelving functions
One-shot: Moving unimportant alarm into a shelf one by one.
Continuous: Moving unimportant alarms into a shelf once, then repeated alarms are automatically moved for certain periods or by certain clock time.
Automatic: Assigning one of existing filters as a condition of shelving, then relevant alarms are automatically moved for certain periods or by certain clock time.
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Load SheddingLoad shedding: Activating predefined filter
automatically in case of alarm flooding If 100 alarms has happened within 60 sec, then
automatically select high priority filter. (This is the default setting and can be configured per customer preference.)
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Display of CAMS for HIS
FilterPane
A&E Browser Pane (Read only)
SortBar
Detailed Message Pane(can be linked to related information)
Dynamic Alarm KPI Bar
A&E Message PaneAck Button
ShelfPane
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