Local Safety Network Bridge LEDs

The Local Safety Network Bridge's (LSNB) Power, Active and Standby LEDs are green and the Error LED is red.

Table: Local Safety Network Bridge LEDs
LED color and pattern	Description and corrective action
All LEDs off	System power is not supplied to the LSNB. Check the power connections.
Power and Error on solid with Active and Standby off	The LSNB went through a reset or an error has occurred. Contact technical support.
Power on with Error, Active, and Standby off	The LSNB is powering up. No corrective action is required.
Power on and Error flashing slowly with Active and Standby off	The LSNB is unassigned. Assign the LSNB to a placeholder.
Power on and all other LEDS flashing quickly	The LSNB is identifying. No corrective action is required.
Power on and Standby off with Error and Active flashing slowly	The active LSNB is assigned but decommissioned. Commission the redundant LSNB. If the LSNB is not shown as assigned to a placeholder for its SZ controller under the Local Safety Network in DeltaV Explorer, the Safety Network Ports must be reset.
Power on and Active off with Error and Standby flashing slowly	The standby LSNB is assigned but decommissioned. Commission the redundant LSNB. If the LSNB is not shown as assigned to a placeholder for its SZ controller under the Local Safety Network in DeltaV Explorer, the Safety Network Ports must be reset.
Power on with Active flashing slowly and Standby and Error off	The redundant (active) LSNB is commissioned but not downloaded. Download the LSNB.
Power on with Standby flashing slowly and Active and Error off	The redundant (standby) LSNB is commissioned but not downloaded. Download the LSNB. The Active LED on the active LSNB should be flashing slowly. If this is not the case, there is an error with the standby LSNB going configured and technical support should be contacted.
Power on with Active on and Error and Standby off	The active LSNB is assigned, commissioned, and downloaded.
Power on with Standby on and Error and Active off	The standby LSNB is assigned, commissioned, and downloaded.
Power on with Error off and Active and Standby flashing alternately.	The LSNB is being upgraded. No corrective action is required.
Power and Error on with Active and Standby flashing quickly	Persistent fatal error. Contact technical support.