Engineering Tools

Save time and money, while increasing efficiency and productivity.


exida has the world’s leading tool for supporting safety lifecycle tasks (exSILentia®). exSILentia® has its own embedded failure rate database, based upon 160 billion operating hours of failure rate information. 

exida embeds years of expert knowledge and data into each of their engineering tools.

Whether you are performing PHAs (PHAxTM), LOPAs (LOPAxTM), SIL Selection (SILectTM), SIL Verification (SILVerTM), SRS creation or Proof test procedure development, cyber risk assessment (CyberPHAx) or alarm rationalization (SILAlarm), exida has a tool to suit, either as a standalone or part of an overall integrated suite that works seamlessly to provide the most comprehensive tool on the market today. You save time and money, while increasing efficiency and productivity.



Design, operation and maintenance of Safety Instrumented Systems (SIS)

exSILentia helps users achieve a new level of consistency and productivity in the design of their Safety Instrumented Systems (SIS). 

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 1910.119 (USA) and Seveso II (Europe).

Learn More    

Conduct efficient PHAs with PHAx

PHAx guides users through the HAZOP process, effectively focusing the user on the task at hand, identifying hazards, hazardous events, and associated sequence of events, using a non-traditional approach. PHAx allows the user to document the relevant and important facts.

Learn More    

Conduct Efficient Cyber Risk Assessments using CyberPHAx™

CyberPHAx™ is a PHA based tool that can be used by engineering personnel in project, process safety, information technology, and process control, as well as plant management, and operations personnel. 

CyberPHAx guides users through the Cyber Risk Assessment process, effectively focusing the user on the task at hand, identifying types of cyber-attacks, potentially leading to hazardous events and their associated risks.

Learn More    

Alarm Rationalization 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.

Learn More    

Maximizing Risk Reduction through Collection and Analysis of Operation & Maintenance Data.

SILStat™ is exida’s Life Event Recorder tool. It allows you to capture key operational and maintenance data (such as equipment failures, process demands, success or failure of protection layers, proof test results, etc.,) for review and analysis as required by the IEC 61511 / ISA 84.00.01-2004 standards and as part of compliance with an OSHA PSM Mechanical Integrity Program.

Learn More    

Layer of Protection Analysis (LOPA) Software

LOPAx™ is a Layer of Protection Analysis (LOPA) tool that can be used by process, process safety, and control engineers in support of plant management and operations personnel. LOPAx guides users through the LOPA process. A hazard scenario consisting of a single or multiple Initiating events can easily be evaluated. Multiple Enabling Conditions (EC), Independent Protection Layers (IPL), and Conditional Modifiers (CM) can be specified. The effectiveness of each can be specified on a per initiating event basis, allowing the user to thoroughly document the sequence of events that cause an initiating event to become an incident.

Learn More    

Our portfolio includes software tools for process hazard analysis (PHA), alarm rationalization, and Safety Instrumented System (SIS) Design. Our flagship product (exSILentia®) is the world’s best-selling tool for SIL Verification.

Tool Training Courses

We offer a range of tool training courses for professionals in the process industry, from basic to advanced concepts. We also offer customized training options available upon request.

Students benefit from exida's in-depth knowledge and expertise , enabling them to fully understand how to use their powerful engineering tools effectively and effieciently.

ALM 241 - Alarm Rationalization with SILAlarm

Attendees will learn how to conduct alarm rationalization of greenfield (new) or brownfield (existing) applications in order to optimize performance of their alarm systems. The class immerses participants in discussion and hands on exercises which have been designed to demonstrate the best practices and requirements for rationalization as taken from the ISA-18.2 alarm management standard and EEMUA 191 guideline. The class focuses on how rationalization can lead to improved operator performance by eliminating / preventing common alarm problems such as nuisance / chattering / stale alarms, incorrect priority, alarm overload, and alarm floods. It also includes a discussion on tips and tricks for creating an alarm philosophy document, such as how to effectively define the “rules” for rationalization. Exercises will use exida’s SILAlarm rationalization tool.

More Info    

Applying ISA-18.2 Alarm Management Best Practices to Your DeltaV System

This course will show how to implement alarm management best practices in your DeltaV system through the use of tools such as Alarm Help, DeltaV Analyze, DeltaV Mosaic, Alarm Shelving, Conditional alarming, System Alarm Management, XL Reporter, and SILAlarm. It will also discuss how to make your DeltaV system comply with the ISA-18.2-2016 standard “Management of Alarm Systems for the Process Industries” by following the alarm management lifecycle. Attendees will gain an appreciation for the alarm management capabilities available in DeltaV so that they can determine how to best apply them to their operations. The course prepares participants to support an alarm management program for a DeltaV system including tasks such as creating an alarm philosophy document, performing alarm rationalization, analyzing alarm system performance, alarm system maintenance, and resolution of alarm management issues.

More Info    

FSE 244 - 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.

More Info