Diagnosis
A serial switching relationship exists for the meter from device &V1®ister &V2& in the period from &V3& to &V4&
During billing, the sum of the consumption from all secondary meters issubtracted from the primary meter's consumption. This sum was largerthan the primary meter's consumption in the period from &V3& to &V4&.This is not permitted.

System Response
The corresponding contract cannot be billed.

Procedure
Correct the meter reading results.