Recovery button - Metasys - LIT-12013352 - M4-SNE10500-0 - M4-SNE10501-0 - M4-SNE11000-0 - M4-SNE11001-0 - M4-SNE110L0-0 - M4-SNE110L1-0 - M4-SNE22000-0 - M4-SNE22001-0 - Supervisory Device - SNE10 Network Engine - SNE11 Network Engine - SNE22 Network Engine - SNE Supervisory Network Engine - 12.0

SNE Commissioning Guide
Product
Network Engines > Network Engines > SNE Supervisory Network Engine
Network Engines > Network Integration Engines > SNE22 Network Engine
Network Engines > Network Integration Engines > SNE10 Network Engine
Network Engines > Network Integration Engines > SNE11 Network Engine
Document type
Commissioning Guide
Document number
LIT-12013352
Version
12.0
Revision date
2022-12-12
Product status
Active

The Recovery button is used to recover device functionality. This button allows a network engine to be reset to a known state if its operation becomes unreliable and cannot be fixed using standard procedures.

Use this button to resolve the following type of conditions:
  • Forgotten password
  • Device reboots continuously
  • Device is unresponsive
  • Device is unable to successfully download code from SCT
    Note: The firmware version on the inactive partition may be older than the version on the active partition and may lack the security enhancements of the newer, active partition. If the Recovery button is pressed to change partitions it is possible that the older firmware may revert to the older recovery button behavior. To check which release is installed on the active partition, press the Recovery button and release after 1 second. If this has no effect, the newer firmware version is active and behaves as described below. If this initiates the recovery sequence, the older version is active and will exhibit older Recovery button behavior.

Recovery to same partition

The Recovery button must be pressed continuously for 5-10 seconds. After 5 seconds the fault LED will start blinking once every second, which is the indicator to release the Recovery button to invoke the same partition recovery. When released, the Heartbeat LED is solid ON. To apply same partition recovery, release the button before 10 seconds. The following will occur:
  1. Reverts to factory default archive.
  2. Defaults the engine's hostname to SNE and MAC address.
  3. Defaults the IP address to DHCP.
  4. Reverts to the factory default security database.

    Recovery is complete when the Heartbeat LED starts to blink at 1 second intervals.

Recovery to inactive partition

The Recovery button must be pressed continuously for at least 10 seconds. After 10 seconds the fault LED blinks once every 5 seconds, which is the indicator to release the Recovery button to invoke inactive partition recovery. When released, the Heartbeat LED is solid ON. Do NOT release the button before 10 seconds to invoke inactive partition recovery. The following will occur:
  1. Reverts to factory default archive.
  2. Defaults the engine's hostname to SNE and MAC address.
  3. Defaults the IP address to DHCP.
  4. Reverts to the factory default security database.
  5. Runs on the opposite partition, possible with a different installed release.
    Recovery is complete when the Heartbeat LED starts to blink at 1 second.
    Note: To determine which partition is currently active, open the Metasys SMP UI in Expert mode and locate the Update object of the SNE under All items > Expert. The Active System Partition attribute is visible under the Focus window of the Update object. Partition 0 is A and partition 1 is B.