Functional safety module for industrial devices

摘要

The present disclosure provides a functional safety module for industrial devices, the functional safety module being connected between the industrial devices to manage safety according to a state of the industrial devices. The functional safety module may include a first controller and a second controller each configured to execute a common predetermined operation command including operation commands. The first controller is configured to output digital signals, and sequentially convert the digital signals into analog voltages. The second controller is configured to receive the analog voltages, sequentially converts the analog voltages, and outputs the digital signals, and determine whether the first controller is normal.