LED State Displays¶
The PROFIBUS state is shown by state LEDs.
| LED | Color | Status | Description |
|---|---|---|---|
| PWR | green | ON (light) | Power supply available. |
| OFF (dark) | Power supply not available or defective hardware. | ||
| RDY | yellow | ON | Boot procedure |
| Blinking | Boot failure | ||
| OFF | — | ||
| RUN | green | ON | Communication module is operational |
| Blinking | — | ||
| OFF | Communication module is not operational | ||
| STA | green | ON | Communication to all slaves is established |
| Flashes cyclic | — | ||
| Flashes non-cyclic | No configuration or stack error | ||
| OFF | No communication | ||
| ERR | red | ON | Communication to one/all slaves is disconnected |
| Flashes cyclic | Communication to at least one slave is disaconnected | ||
| OFF | No error |