Software
| Current Version | |
|---|---|
| SILAlarm | 2.7.0.524 |
Alarm Rationalization made easy with SILAlarm ™
SILAlarm™ is a tool for facilitating and documenting the results of alarm rationalization in a master alarm database. It was developed in accordance with the ISA-18.2 standard “Management of Alarm Systems for the Process Industries” and EEMUA 191. SILAlarm guides a rationalization team through a systematic, tailorable process of reviewing, justifying and documenting the design of each alarm:Evaluation of Consequences & Time to Respond ● Prioritization ● Document Cause, Consequence, Confirmation, Corrective Action, Design Intent, Testing Requirements ● Classification ● Setpoint (Limit) Determination ● Setting of Deadbands and On/Off Delays ● Alarm Suppression / Advanced Alarming ● Functional Safety Management ● Routing of Alarm Messages
It provides the following functionality applicable to new and existing systems:
- Define the rules for rationalization and design (prioritization, classification, etc.) based on the user’s unique alarm philosophy document.
- Build the master alarm database by importing alarm information from a spreadsheet or by creating alarms from scratch.
- Clone rationalized alarms (using a template approach) or copy design details to similar alarms.
- Export alarm design details for automatic configuration of alarm attributes in the control system.
- Spreadsheet interface provides powerful filtering capability and viewing of key alarm attributes and status at a glance.
- Calculate alarm limit taking into account constraints, normal operating limits, process dynamics, operator response time, and process safety time.
- Supports the engineering and design of alarm suppression techniques including shelving, first-out alarming, alarm flood suppression, and state-based suppression.
- Define state-based alarming scenarios to specify alarm limit, priority, operator response, etc., as a function of operating state.
- Supports tracking of alarm rationalization status, management of change, and auditing / comparison of the differences between the master alarm database and the control system.
- Analyze alarm priority distribution for comparison to industry benchmarks.
- Generate operator alarm response procedures for training or integration into the control system.
SILAlarm supports compliance with industry standards, guidelines and regulations on alarm management (e.g. ISA-18.2, EEMUA 191, API RP 1167). It includes a comprehensive user manual defining how to use the tool as well as tips and techniques on how to apply alarm management good engineering practices to rationalization.
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