LED Diagnostics
The "Link/Activity" LED on ports with plug-in connections provide information for initial diagnosis.
"Link/Activity" LED | Connected | Active |
|---|---|---|
On | Yes | No |
Flashing | Yes | Yes |
Off | No | Not available |
The "run" LED on the slave allows for evaluating the current ESM state.
"Run" LED | ESM state |
|---|---|
Off | Init |
Flashing | Pre-operational |
Flashes once | Safe operational |
On | Operational |
The "error" LED indicates the state of a connected slave.
"Error" LED | Slave state |
|---|---|
Off | No error |
Flashing | Configuration error |
Flashes once | General runtime error |
On | Watchdog expired (fieldbus timeout) |
Further diagnostics is possible using the "AL Status Code", see chapter AL Status Code.
