Process Automation

Safety Management System

HiaGuard is a Safety Instrumented System (SIS) developed by HollySys Group for industry automation safety applications, which has obtained the SIL3 certification from TÜV Rheinland, and is compliant with requirements under the IEC61508/IEC61511/IEC50156-1 standards. The HiaGuard system can be applied to projects requiring very stringent safety requirements up to the SIL3 level.

HiaGuard Safety Instrumented System
Where HiaGuard is Mainly Used

The HiaGuard system adopts 2-out-of-3 Diagnostics (2oo3D), applicable for Emergency Shutdown Systems (ESD), Fire & Gas Systems (FGS), Burner Management Systems (BMS), Emergency Trip Systems (ETS), Process Shutdown Systems (PSD), and Key Process Control applications.

Key Characteristics of HiaGuard System
  • Three-redundancy diagnostic system framework (2oo3D), with a downgrade model of 3-2-0.
  • A single IO module can satisfy SIL3 requirements, and the IO module can be configured for redundancy to improve usability.
  • A single system configured to be the master device can respond in less than 30ms.
  • The PFDAV accounts for less than 10% of the safety circuit, which facilitates the user’s selection of sensors and actuators.
  • The proof test interval may be up to 15 years, reducing the user’s maintenance and management costs.
  • SOE accuracy can reach 1ms.
  • Can be seamlessly integrated with the HollySys DCS system.
  • Safety circuit usability can reach 99.999%.
  • 1+1 redundancy power supply.