A building management system (BMS) includes building equipment, an eventseries generator, and a storage interface. The building equipment are configured to generate a plurality of data samples. Each of the data samples includes a data value and a timestamp. The eventseries generator is configured to assign a sample state to each data sample based on the data value of the data sample and generate one or more events based on the timestamp of each data sample and the sample state assigned to each data sample. Each of the events includes a start time, an end time, and an event state. The eventseries generator is configured to generate an eventseries including the one or more generated events. The storage interface is configured to store the eventseries in an eventseries database.