Emergency Mode

The system and application(s) of the nano EDGE ENGINE controllers are stored on an SD card. If the SD card is not detected in the device or the device detects frequent reboots (at least 5 times in 6 minutes), which prevent correct operation, the device enters an emergency mode.

Operation in Emergency Mode

Upon connecting to the device in the emergency mode, the following notice pops up:

In the emergency mode, the device operation is limited:

• libraries are not loaded;

• the SD card configuration is not loaded;

• only the System container with limited options (only Logs and Platform components) is displayed in the tree;

• the ALM LED is lit continuously;

• the iFnet runs with an IP/port taken from a flash storage;

Note: The flash storage must be synchronized to configuration slots when available.

• no authorization or credentials are taken from the flash storage (like IP/port).

Possible Actions

When the device enters the emergency mode, take one of a few possible actions:

1. read logs from the SD card if available;

2. reboot;

3. restore to defaults (using the Restore in the System context menu): remove files from the SD card (if available and formatted) excluding only files with IP, port, and credentials (libraries must be also removed);

4. restore to factory defaults (restoring with S1 6^th DIP switch): format the SD card (if available), restore default credentials, IP, mask, gateway, iFnet port.