The signals of field equipment are converted into logic levels that can be recognized by the control system through isolation circuits. The module has built-in optocoupler isolation technology, which significantly improves the ability to resist surge voltage and electromagnetic interference, and is suitable for high-voltage or long-distance wiring occasions.
The module can connect a variety of field devices such as limit switches, pressure switches, safety interlock contacts, and supports common 24V DC voltage signal input. It has strong compatibility and is suitable for multi-brand equipment interfaces.
After integration with the device resource management system (PRM), centralized relay signal health monitoring can be achieved, including signal loss, abnormal flipping or action delay, etc., to implement state-based maintenance strategies, improve equipment availability and reduce maintenance costs.
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