HiaGuard SIL3 SIS

About HiaGuard SIL3 SIS

HiaGuard SIL3 SIS is developed by HollySys and specifically designed for the industrial automation safety sector. It has been certified by TÜV Rheinland in Germany. The system adheres to IEC 61508 and IEC 61511 standards, achieving SC3 system capability and SIL3 safety integrity levels, making it suitable for safety-related applications. Since its launch, HiaGuard SIS has been implemented in thousands of functional safety scenarios across various industries worldwide, including refining and petrochemicals, coal chemicals, oil and gas production, storage and transportation, energy and power generation, metallurgy, papermaking, food and pharmaceutical, among others. The system is committed to leveraging cutting-edge technology to enhance the safety and reliability of production units while providing customers with excellent safety assurance and operational efficiency.

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Product Features

High Availability

HiaGuard SIL3 SIS adopts 2oo3D (2-out-of-3 with Diagnostics) technology, ensuring outstanding advantages in safety, stability, and real-time performance. Additionally, the system supports a 3-2-0 degradation mode, ensuring continued availability under abnormal conditions, with availability reaching up to 99.999%.
Safety Compliance

HiaGuard SIL3 SIS meets international safety standards IEC 61508 and IEC 61511 SC3 system capability level and SIL3 safety integrity level. It has received certification from TÜV Rheinland in Germany, as well as CE Certification (including EMC and LVD), G3 Anticorrosion Certification, CCS, and Achilles Certification.
Accurate Diagnostics

HiaGuard SIL3 SIS offers comprehensive diagnostic capabilities with a diagnostic coverage of over 90%, allowing precise fault localization down to the channel level. Its 1-ms resolution Sequence of Events (SOE) recording accurately captures operational details. The application of the HART protocol facilitates easier calibration and maintenance of field instruments.
Integrated Safety

HiaGuard SIL3 SIS can be seamlessly integrated with HollySys DCS through a unified system network, sharing physical network resources but maintaining logical separation with different protocols. A failure on the DCS side does not impact SIS safety. Operators can access real-time data from both DCS and SIS via human-machine interface, simplifying data acquisition and management processes and reducing software and hardware costs.
Protocols and Interfaces

HiaGuard SIL3 SIS is compatible with Profibus, TCP/IP, and Modbus communication protocols. It uses RS485 and Ethernet interfaces to enable one-way or two-way data exchange with other systems via communication stations or switches.
Secure Communication

Communication between HiaGuard system stations adopts a safety communication protocol that complies with functional safety standards. It employs black channel technology to forward and transmit safety data via communication modules and switches, ensuring data security.