BGX501-742-R01, APEX100 User Manual
5.7 Communication Ports
5.7.1 Transaction
Transactions are communications with the meter, which involve some sort of data change within the meter. A
transaction log of the last 100 events is stored in the meter
Transactions supported by meter through the proprietary mode areMD reset
†
Tariff download*Scaling tariff
downloadTime setTamper reset – The meter will only accept a tamper reset if the tamper has been
cleared.Change CLEM download
Transactions supported by the meter when in DLMS mode areTime setSIP/ DIP timings changes
†
Bill dates
changes
†
Seasons, Days & TOD timings changes
†
Password ChangeAES Key ChangePhysical ID Change
Note:
* In a single scaling tariff, commissioning change, error compensation, & transformer loss compensation will be
treated & logged as three separate transactions.
†
In a Category „B‟ meter these transactions will be accepted but not used; the meter will continue with the
default data.
5.8 Meter Reading
The Apex 100 uses DLMS, the new global protocol, for meter reading. This is the only protocol supported by
the meter for meter reading. In DLMS protocol the BCS is considered the client and the meter is the server. On
request by the BCS, the meter will send all its supported OBIS codes and expected queries. All DLMS meters
will communicate data only after „getting associated‟ with the BCS client. Meter reading is divided in to following
sessions:Single parameter sessionsProfile sessions
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