Petrochemical industry: As a key component of emergency shutdown systems (ESD) and fire and gas systems (F&G), it receives signals from safety instruments such as pressure, temperature, and flame detectors, and triggers safety interlocks or emergency shutdowns when dangerous conditions (such as overpressure, leakage) are detected, preventing major accidents like explosions and fires.

Power and energy industry: It is used to monitor critical safety functions such as turbine overspeed protection, generator safety interlocks, and boiler combustion system safety protection, ensuring the safety and stability of the power generation process.

Rail Transit Industry: Applied in safety-related sections such as signal control systems and turnout protection, its high reliability and anti-interference capabilities can adapt to the harsh environments around the tracks, ensuring the safety of train operation.

Mechanical Manufacturing and Factory Automation: Used to collect signals for safety doors monitoring, emergency stop button inputs, light curtains, and safety pads, among other safety devices. In robot workstations and large presses, it ensures the safety of operators and immediately stops the machine operation in case of danger. Other process industries: In the pharmaceutical, metallurgical, food and beverage industries, it is used for the safety monitoring of production processes and the control of key process parameters, ensuring that the production processes comply with relevant safety standards.