stdmeterdLog is a read-write flag that enables (1) or disables (0) logging of the Unity PDU's standard metering data, covering branch-level readings like currentxy1 and powerxy1 alongside individual receptacle and environmental probe metrics. This is the specific switch that determines whether the PDU actually records the numeric power, current, and temperature history an admin would later review. For example, an admin doing post-incident analysis of a power event would need stdmeterdLog enabled beforehand in order to have historical branch and outlet metrics to examine.