This read-write enumerated integer, no(0) or yes(1), controls whether this rectifier module participates in the plant's sequencing rotation, which staggers modules into standby to reduce wear. An administrator disables it for a module that should always stay online, such as one supporting a critical load, while leaving others eligible for rotation. For example, setting this to no(0) on a specific rectifier keeps it permanently active even while other modules cycle through standby.