Hexagon is a global leader in sensor, software and autonomous solution. PAS was acquired by Hexagon in 2020 and is now part of Hexagon’s Asset Lifecycle Intelligence division. For nearly three decades PAS independently pioneered and excelled in the fields of alarm management and control systems optimization. There are more than 20,000 PAS software installations worldwide, in all major processing industries. Our technologies and services are recognized as world leaders in alarm management, control system cybersecurity, process control performance monitoring and process improvement.


PAS was the first company to alarm analysis software compatible with multiple control systems. In 2006, PAS wrote The Alarm Management Handbook and has since helped thousands of sites initiate alarm improvements, increasing safety and reliability. Next, we published The High Performance HMI™ Handbook, which changed the industry regarding operator control graphics. We’ve partnered with the Electric Power Research Institute, contributed to developing ISA standards and reports and developed techniques adopted worldwide.

Experience in the Real World

  • Contact Energy identified more than 90,000 configured alarms with inconsistencies and used PAS AlarmManagement™ to achieve 60% alarm rate improvement
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  • DSM selected PAS PlantState Integrity™ platform to improve situational awareness and operator effectiveness and reduced alarms by 70%
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  • Petroleum Development Oman (PDO) improved alarm management and established OT/ICS cybersecurity best practices with PAS Automation Integrity™, PAS Cyber Integrity® and PAS AlarmManagement™.
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“Working with Hexagon personnel has been excellent — the communication has been precise and clear from the beginning, and we’ve had a full overview of expectations on both sides. It’s a true partnership between our companies." – Jamal Balushi, Petroleum Development Oman

Capabilities for all Control Systems

PAS solutions work with major control systems to address issues with alarms, configuration, HMI, cybersecurity and management of change. PAS technology users can access multi-system configured asset models and support multiple sites with a common interface. Our solution’s ability to integrate and aggregate data as well as add new capabilities has been recognized and top-rated by ARC Advisory Group.

Experience Infographic