exSILentia®

Design, operation and maintenance of Safety Instrumented Systems (SIS) just got easier. Achieve a new level of consistency and productivity in the design of your Safety Instrumented Systems (SIS).

exSILentia

Follow the entire IEC 61511 / ISA 84 Functional Safety Lifecycle Using a Single Tool

exsilentia

The use of a single tool for the whole safety lifecycle reduces total cost of ownership and helps ensure SIS applications are not over-designed or under-designed. It improves traceability while also making it easier to manage change, assess the impact of design changes, and audit the overall design as required by industry regulations. 

exSILentia enhances the existing suite of tools, including the industry leading tool for Safety Integrity Level (SIL) verification (SILver®).

All-new functionality allows users to follow the entire IEC 61511 / ISA 84 functional safety lifecycle for the first time using a single tool. It also supports compliance with regulations such as OSHA PSM 1919.119 (USA) and Seveso II (Europe). 

With exSILentia® you are able to install exida’s years of functional safety experience on your computer. You will be able to define a project comprising of one or more Safety Instrumented Functions. All project documentation will be managed with easy report generation in Microsoft Word and Microsoft Excel. Sharing data for multi-person projects or for independent review is easy using the exSILentia® proprietary exi file format.

  Current Version
exSILentia 3.4.2.951

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Informational Webinar

Overview of exSILentia Safety Lifecycle Tool

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Enhancements to the Existing exSILentia Suite

New Graphical User Interface (GUI)

Create user-defined risk graphs

Required SIL based upon LOPA calculation (uses detailed frequency based target)

Multiple risk calibrations can be used for SIL Selection within a single project

Specify Partial Stroke Test intervals

Support for MooN (M-out-of-N) architectures

Required SIL based upon LOPA calculation (uses detailed frequency based target)

All-new Functionality

Process Hazard Analysis (PHA) - HAZOP Tool

Import PHA results from 3rd party tools

Alarm Rationalization

Automatic generation of proof test specifications

Lifecycle cost evaluator

Failure & demand data collection / evaluation/h4>

Critical Device List

Viewer for exida’s Safety Equipment Reliablity Handbook (SERH) - (reliability database)

Checklist to demonstrate compliance with the IEC 61511 / ISA 84 standard

The Breakdown

exSILentia Version 3 is a modular suite of tools available in four different bundles:

Standard

Analysis

Operations

Ultimate

This allows users to select the package that best meets their functionality requirements, budget, and addresses their specific engineering tasks.

Tools Standard Analysis Operation Ultimate
IEC / ISA 61511 Compliance Documentation
Cyber Security Audit Checklist
PHAX
Process Hazards Analysis (HAZOP) recording
   
PHA Import
Process Hazards Analysis (HAZOP) import from 3rd party tools
   
SILAlarm
Alarm Rationalization
     
SILect
Safety Integrity Level Selection (Risk Graph, Hazard Matrix, LOPA)
SIF SRS
Basic Safety Instrumented Function Safety Requirements Specification
 
SRSC&E - Process SRS
Process level Safety Requirements Specification
     
SILver
Safety Integrity Level Verification, IEC 61508 compliant calculation engine
SRSC&E - Design SRS
Detailed Design level Safety Requirements Specification
     
Proof Test Generator
Combine specific equipment proof test procedures
   
Lifecycle Cost Estimator
Determine net present value of SIF design
   
SERH Viewer
exida Safety Equipment Reliability Handbook Viewer
Customer Proprietary Equipment Database
Proprietary equipment reliability database in addition to SERH

* Server license only

The exSILentia® integrated Safety Lifecycle Engineering Tool is a powerful aid for any engineer involved in safety lifecycle tasks such as SIL selection, Safety Requirements Specification, and SIL verification.

exSILentia Training Courses

exida has developed courses that will familiarize users with all facets of the exSILentia tool to ensure efficient implementation of the Safety Lifecycle tasks.

exSILentia: SIL Selection and SIL Verification (FSE 241)

Attendees will learn how to perform Safety Integrity Level (SIL) Selection and Verification using the advanced capabilities of exSILentia® . This will help users determine the required risk reduction for each hazard scenario and the achieved risk reduction for each identified Safety Instrumented Function (SIF). The class will also cover interfacing with Process Hazard Analysis (PHA) results, documentation of the Safety Requirements Specification (SRS), and operational aspects such as proof testing.

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Generating logic using the DeltaV SIS Configurator

Generating logic using the DeltaV SIS Configurator, FSE 246, explains how the exSILentia DeltaV SIS Configurator plug-in is used to generate logic for a DeltaV SIS system. Students will learn how to generate logic for their DeltaV SIS logic solver using their conceptual SIF design information from the SILver™ and the Design SRS modules. This course will review how selections made in exSILentia will impact the logic creation process. It will also provide instruction on generating a cause and effect matrix representing the logic.

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Layer of Protection Analysis with LOPAx™ and Safety Requirements Specification with SRS

Layer of Protection Analysis with LOPAx™ and Safety Requirements Specification with SRS, FSE 243, explains how the exSILentia LOPAx™ module is used to conduct a Layer of Protection Analysis and how SIF requirements can be documented using the exSILentia SRS module. This course is targeted towards students that have a general understanding of layer of protection analysis and safety requirements specifications who want to learn how to leverage the advanced features of LOPAx™ and SRS. It will cover how to analyze hazard scenarios considering the frequency of initiating events and the probability of failure for each independent protection layer (IPL) as well as enabling conditions and conditional modifiers. This course will show how to calculate the required Risk Reduction Factor of an IPL and identify Safety Instrumented Functions (SIF). Users will learn how to record mandatory functional and integrity requirements for each SIF. It will teach users how to transfer data from PHAx™ to LOPAx™ as well as from LOPAx™ to SRS.

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Life Event recording with SILStat™

Layer of Protection Analysis with LOPAx™ and Safety Requirements Specification with SRS, FSE 243, explains how the exSILentia LOPAx™ module is used to conduct a Layer of Protection Analysis and how SIF requirements can be documented using the exSILentia SRS module. This course is targeted towards students that have a general understanding of layer of protection analysis and safety requirements specifications who want to learn how to leverage the advanced features of LOPAx™ and SRS. It will cover how to analyze hazard scenarios considering the frequency of initiating events and the probability of failure for each independent protection layer (IPL) as well as enabling conditions and conditional modifiers. This course will show how to calculate the required Risk Reduction Factor of an IPL and identify Safety Instrumented Functions (SIF). Users will learn how to record mandatory functional and integrity requirements for each SIF. It will teach users how to transfer data from PHAx™ to LOPAx™ as well as from LOPAx™ to SRS.

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Process Hazard Analysis with PHAx™

Process Hazard Analysis with PHAx™, FSE 242, details how the exSILentia PHAx™ module can be used to conduct HAZOP methodology based Process Hazard Analysis. This course is targeted towards students that are experienced in process hazard analysis who want to learn how to leverage the advanced features of PHAx™. It will cover how to configure a project, define risk criteria, and use the advanced libraries to store valuable project specific information. The students will learn how to define units, nodes, and how to benefit from the PHAx™ smart deviations. It also addresses how hazard scenarios are to be defined for use in subsequent lifecycle phases.

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SIL verification with SILver™

SIL verification with SILver™, FSE 244, explains how the exSILentia SILver™ module is used to perform a SIL verification for Safety Instrumented Functions. Students will learn to leverage the tool to model different SIF architectures ranging from simple 1oo1 configuration to more complex examples. This course also covers review of the key parameters that determine the probability of failure of a SIF as well as minimum hardware fault tolerance and systematic capability aspects. It will show the impact of these parameters on the detailed design, implementation, and operation of the SIF. Furthermore, students will learn how to transfer data from the SILver™ module to the Design SRS module and subsequently complete the Design SRS requirements. Finally, the course covers the impact of proof testing and specification of proof test procedures using the Proof Test Generator module.

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