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

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.

Whether you are performing PHAs (PHAxTM), LOPAs (LOPAxTM), SIL Selection (SILectTM), SIL Verification (SILVerTM), SRS creation or Proof test procedure development, cyber risk assessment or alarm rationalization, 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.


SIL Verification Software

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).

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IEC 61511 / ISA 84 functional safety lifecycle Software

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.

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Cyber Risk Assessments using CyberPHAx

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.

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Alarm Rationalization Software

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.

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IEC 61511 / ISA 84.00.01-2004 Software

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.

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Layer of Protection Analysis (LOPA) software

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.

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More Software

SafetyCaseDB (EN/IEC 61508 Knowledgebase)
SILCal (Criticality Analysis / System FMEA / and Software HAZOP in compliance with EN / IEC 61508)