In online mode, the device tree allows for a pinpointing of a pending diagnosis.
Green symbol: The device is in the OPERATIONAL
state.
Orange triangle: The device is in the PREOPERATIONAL
state and is configured, and it is still not in the OPERATIONAL
state.
Error flag (red triangle): Hard error, such as an incorrect/missing device or connection interruption.
Diagnosis flag (red exclamation mark): Indicates that a diagnosis entry is currently available for exactly this device. The details are then displayed on the status page of the respective device.
Error-cleared flag (gray exclamation mark): Indicates that a previously pending error has been corrected.