Use the custom 10-cell NiMH (nickel metal hydrite) battery assembly (included with the product) as an alternative to, or with, the SRAM backup method.
This battery allows the controller to continue station operation through short power bumps, ranging from a few seconds to a minute or more in duration (up to 10 minutes, if also using SRAM). If the controller experiences a longer outage, the NiMH battery provides enough run time for the unit to backup data and then shutdown. Shutdown occurs automatically, after data is backed up to on-board flash memory.
The FX30E/FX60E charges the battery during normal operation, until the controller is fully charged. Typically, the charge operation completes within 18 hours. Following a power outage, the battery is charged again, as necessary. The power and battery circuitry is monitored by a station running on the FX30E/FX60E (via its PowerMonitorService). Station alarms are generated when primary power is lost, or if the battery is uncharged or unable to hold a sufficient charge.