Chapter 2 Installation Device Settings
Branch Feeder Monitor 136_Installation Operation and Manual 20
2.5 Device Settings
Before operating your BFM136, provide the device with information about your particular environment. The
device front display (see Display Operations (BFM136)) and the supplementary PAS software (see PAS
Application Software) allow you to configure the BFM136 for your particular use.
2.5.1 Password
The BFM136 configuration setups are secured by a factory-preset password. Contact your dealer for your
primary password. Later, you will be able to change the password via the device Access Menu (see Meter
Security).
2.5.2 Submeter System
The BFM136 provides up to 36 submeters with separate measurement and energy registers. Each
submeter can service current inputs dedicated to a particular consumer (metering submeter) or be used
as a totalization meter for automatic totalization of energy from different sub-consumers (totalization
submeter). Additionally, the BFM136 provides four more totalization submeters (37 through 40) that you
can use for totalization purposes when all 36 metering submeters have been utilized.
A submeter remains inactive while there are no current inputs associated with the submeter (see Channel
Assignments), or until you link another submeter as a source to its energy registers making it a totalization
submeter (see Setting up Total and Tariff Registers). The Channel Assignment setup allows you to link
one to three current inputs to each submeter and to specify the primary rating of the current transformers.
A totalization submeter provides totalization of energy from any number of metering and totalization
submeters.
By default, your device is configured for 12 three-phase metering submeters with 100A (maximum) current
inputs (50A nominal rating).
2.5.3 Submeter Addressing
The BFM136 uses the Modbus communication protocol for data transmission and accessing setups
through communications. A full description of the communications protocol is found in the BFM136
Modbus Reference Guide provided with your device.
Each active submeter in the BFM136 is assigned a unique communication address that allows accessing
its private registers and setups. All submeter addresses are assigned automatically in a sequential order
starting with the device base address that is programmed through the device Communication Setup (see
Setting Up Communication Ports ). The following table illustrates submeter addressing in the device with
the base address N.
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