Yacht Devices NMEA 2000 YDBM-01, Руководство пользователя

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Let’s configure a rule that is triggered if a battery voltage falls below the specified limit (in this case, 11.5 V)
for longer than a specified period of time:
YD:SV1 ON <11.5 30 0 1
If you have an Alarm Button configured (see XI.2), you can receive an audible notification when the rule
is triggered.
If your charging equipment is not capable to initiate recharging automatically, you may use the Device’s
Digital Switching commands to activate, e.g., a genset. In this case, you may require a dedicated genset
start circuit. On the Figure 3, the Circuit Control (see XI.1) is used to close the contacts of the genset’s
starting circuit.
You may need an additional rule to release the starter when a genset is on (voltage is above 12 Volts
for more than 5 seconds):
YD:SV1 OFF >12 5 0 1