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Consolidated Alarm Management Software (CAMS) for Human Interface Station (HIS) ー CAMS for HIS

Consolidated Alarm Management SoftwareCAMS for HIS

One is a practical approach that sorts out alarms and displays only those alarms that require operator actions. The other is a fundamental approach that allows defining only the necessary alarms in accordance with EEMUA Publication No. 191 which is regarded as the de facto industry guideline for alarm management.

CAMS for HIS helps customers thwart the problem of alarm flooding, a potential cause of troubles in the plan, with the aim of ensuring safe operation. It also provides operators with an environment that frees them of tedious repetitive alarm tasks and allows them to focus on true process concerns.

CAMS for HIS is an alarm management software. It acquires real-time alarms and events from various systems - not only from CENTUM but also Plant Resource Manager (PRM), Safety Instrumented System ProSafe-RS and Network-based Control System STARDOM; then sorts and delivers only the necessary alarms to the right person at the right time. Important information such as the root cause of alarm occurrence or role-based guidance can also be added to the displayed message.

The number and variety of alarms and events handled in the plant are increasing substantially as plant operations become more complex. This software takes two engineering approaches to help rationalize alarms with the aim of preventing alarm flooding.

CENTUM VPCENTUM VP

PrProSafe-RSoSafe-RSSTSTARDOMARDOM

PRMPRM

What is CAMS for HIS?* Have you ever missed a critical alarm or made an erroneous judgment because of alarm flooding?* How do you rationalize and implement your alarms? * Do you want to enhance the alarm monitoring functions of your DCS?

•EEMUA Publication 191A guideline for design, management and procurement of optimum alarm systems published in 1999, which has been prepared by EEMUA (Engineering Equipment and Materials Users Association) Sub-Committee formed by representatives of EEMUA member companies and the HSE (Health and Safety Executive).

The Real-time Alarm Management Software Designed to be Embedded in a DCS - CAMS for HIS

Details Pane

Filters Pane

Shelves Pane

Alarm & Event Messages Pane

Alarm & Event Browser Pane

Various identifiers for sorting alarms can be defined. In addition, various types of value-added information can be defined for alarms to help users take role-based action for alarms quickly and accurately.

• Examples of identifiers for providing only necessary alarms Purpose of monitoring (safety, environmental protection, economic efficiency)• Examples of identifiers for providing an alarm only to the persons who need it

Target user or user group• Examples of identifiers for providing an alarm at the right time

Allowed response time (urgent, quick, routine), desired degree of consequence (very large, large, medium, small), alarm priority (critical, high, medium, low, logging, reference)

• Examples of value-added information Root cause of alarm occurrence, role-based action to be taken, previous action procedures

“To deliver the necessary alarms to the right person at the right time”

Sorting out Alarms and Adding Value-added Information

CENTUM VP

ProSafe-RSSTARDOM

PRM

• Prioritizing Alarms A function to help set alarm priority and to allow only necessary alarms in accordance with the criteria 　　　recommended by EEMUA Publication No. 191. When you input the purpose of monitoring and consequence, 　CAMS for HIS determines the alarm priority quantitatively in accordance with user-defined rules.

• Alarm Suppression Alarms coming from an out of service units can be suppressed based on predefined alarm groups.

Alarm Definitions Following Industry Guidelines

CAMS for HIS provides an operational environment that allows users to define only necessary alarms in accordance with established industry standards like EEMUA Publication No. 191.

Alarm Flooding Can be Reduced Just by Installing the Software

● Sorting/FilteringOperators can sort and filter alarm messages using keys, which are alarm attribute identifiers included in the alarm messages. Process alarm, system alarm, and other filters are available by default. Users can flexibly configure and create filters.

● EclipsingAlarm messages that are repeatedly activated by the same tag can be collapsed and displayed as a single line. Eclipsing reduces the number of alarm messages that are displayed and allows operators to identify critical alarms more easily.

● ShelvingAlarms of lower priorities can be temporarily moved to "shelves." Operators can shelve alarms and filters manually, and alarms identical to these shelved alarms can be automatically moved to the shelves. If there are any related recovery messages, they can be also shelved. If a filter is shelved, alarms that match the filter's rules can also be automatically moved to the shelves.

● Load SheddingIf too many alarms are generated in a short period of time due to an unexpected event, predefined filters can be automatically activated to reduce the operators’ monitoring load.

CAMS for HIS provides many functions that are ready to use immediately after installation. Alarm flooding will significantly be reduced immediately on the spot with built-in capabilities.

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