What is the Function of a Safety Instrumented System?

1 Answers
SanHarley
07/29/25 7:21pm
It mainly serves as the alarm and interlock part in factory control systems, performing alarm actions, adjustments, or shutdown controls based on the detected results in the control system. Below is relevant information about the Safety Instrumented System: 1. Features: Based on IEC61508 as the foundational standard, it complies with the safety standard regulations for instruments stipulated by international safety associations. It offers broad coverage, high safety, and self-diagnostic capabilities, enabling it to detect and prevent potential hazards. 2. Basic Components: The Safety Instrumented System includes sensors, logic solvers, and final actuating elements, namely the detection unit, control unit, and execution unit. The SIS system can monitor existing or latent hazards during production, issue warnings, or directly execute predefined programs to immediately initiate operations, preventing accidents and reducing their potential harm and impact.
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