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Device integrations

BMR

Supported devices: PLA33 & PLA33RX

Configure the meter

We need this software to configure the BMR.

The PMS client application in the Windows app list.

  1. Open service mode

    In most cases, the device is set to DHCP. However, it is still important to verify the CT ratio of the main measurement, to avoid incorrect main readings. Open the software and go to service mode.

    If necessary, this can be adjusted in the Communication tab.

  2. The Communication tab of the meter software with the RS485 settings, the Ethernet address, Modbus TCP on port 502 and Modbus RTU over TCP on port 10001.

  3. Write the configuration

    Next, we click “Write configurations” twice, search for the configured IP address, and enter it.

  4. The toolbar with the write, import and export configuration buttons.

  5. Set the CT ratio

    The last step, and the most important one, is to correctly configure the current transformers (CTs).
    In our case, CTs with a ratio of 250/5 are used. This ratio can be read on the CTs installed on the main measurement, through which the power cable passes.
    After that, we press “Write config” once more.

BMR configuration software with connection type 3UN_3I and its three-phase wiring diagram, next to the network, transformer ratio and averaging settings.

When checking the phasor diagram, all same-color vectors should be close to each other. In this case, they are not, because solar panels are installed at the site. It is recommended to temporarily switch off the PV system and confirm the measurement again. Otherwise, an installation error may occur.

Phasor diagram in the BMR software showing the phase voltages and currents of L1, L2 and L3, with a table of voltage, angle, current and cos phi per phase.