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Relay on cerbo gx configured as alarm not working

Hi all, Im using a smart MPPT 150/70 connected to cerbo gx via ve port to monitor battery voltage via the VRM alarm rule. When voltage drops we get alarm email but the relay output on cerbo gx that is configured to alarm doesn't change status .

Also when i try config low battery as additional alarm rule in VRM via selected MPPT device comes up as per below:

Low batt. voltage alarm: No value available, product not connected?

Any help would be great cheers

cerbo gxRelay
2 |3000

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