Page 74/95
21January2021/Version 0
LEM International SA
Chemin des Aulx 8
1228 PLAN-LES-OUATES Switzerland
www.lem.com
7.3. Measurements
7.3.1. Energy registering
As an energy meter, energy is the main output of the DCBM. Two types of energy registers are
available:
• Total energy registers
• Transaction energy registers
As regard to certification of concerned product, the official registers to be used for billing are the
following:
Name
Description
transactionDuration
Transaction duration in seconds
energyImport
Import DC energy during the transaction
energyExport
Export DC energy during the transaction
energyImportTotal
Non-resettable register for import energy ("A+")
energyExportTotal
Non-resettable register for import energy ("A-")
Table 9: Measurement results, metrologically relevant
7.3.2. Bidirectional current flow
Both sets of registers consist in two registers: Import energy and export energy (see "5.3. Energy
registering"). They are always displayed and stored together.
A single transaction stores both import and export energy values.
7.3.3. Total energy registers
Total energy registers are available:
• in the
/livemeasure
• on Idle screen
• on dedicated maintenance screens (Livemeasure category)
• in the transaction data structures (both
/ocmf
and
/legal
) and on transaction screens, as frozen
values corresponding to the start and end of the transaction
i
