User's Manual

MAINTENANCE FUNCTIONS
Troubleshooting
SKF Enlight Collect IMx-1 System
User Manual
Revision A
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• Note that in the mesh active state, the mesh radio will be deactivated if after
5-minutes it hasn’t successfully joined the mesh. This initial deactivation or
sleep period lasts for 5-minutes but after subsequent failures it increases in
coarse steps from 10 minutes up to 24 hours between mesh connection
attempts.
An NFC tap on a sensor with its mesh radio enabled, joined, active or ‘sleep’ state,
switches it back to WPAN radio, active mode.
• An NFC tap on a sensor will wake it from a ‘sleep’ state and show in app a
commissioned sensor’s location in the hierarchy. Note that an NFC tap on a
commissioned sensor temporarily takes it out of the mesh. The app knows
from the sensor what mode it was in before the app connected and unless
commissioning or decommissioning, will always set it back into that mode
when disconnecting.
With WPAN active again, a command can return the sensor to flight mode.
• This is part of the process of sensor decommissioning, where the app clears
the sensor of its configuration, before then instructing it to adopt flight mode.
Be aware that in addition to the normally expected flow, the following apply:
• If the app doesn’t connect to the sensor via Bluetooth then after a few
minutes the sensor will revert to mesh mode.
• If however, the app has connected but the app communications aren’t
properly closed or are not maintained, after 10-minutes of inactivity the
sensor will move to flight mode.
• Similarly, once connected, a second NFC tap will also place the sensor in
flight mode.
Sensor commissioning and decommissioning are subsets of the general interactions
and can be similarly illustrated as follows:
Figure 34 The commissioning flow – app controlled
Figure 35 The decommissioning flow – app controlled