What does a solid green RUN indicator on the programmable controller processor indicate?

A solid green RUN indicator on a programmable controller processor signifies that the processor is functioning properly. This visual cue is designed to provide assurance to the user that the system is operational and ready to execute its programmed tasks without any issues.

When the RUN indicator displays solid green, it typically means that the processor has successfully completed its self-diagnostics during startup and is currently running the application code as expected. It is an affirmation that the device is in a stable state and not encountering any faults or errors that would affect its performance.

In contrast, other indicators, such as blinking lights or different colors, could denote various error conditions or malfunctions. A solid green light is the standard indicator used across many systems to communicate proper operational status. Understanding this signaling is essential for effectively monitoring and troubleshooting programmable controllers.