Read-out interfaces

The following optional interfaces are available for the EMU Professional II.

• M-Bus
• Modbus RTU RS485
• LoRa
• TCP/IP (Webserver, Modbus TCP, Direct-http)

S0-Pulse output

The EMU Professional II possesses a configurable S0-Pulse output

• Active Energy
• Active Energy consumption
• Active Energy supply
• Reactive Energy
• Reactive Energy import
• Reactive Energy export

Configuration ex-factory:
Direct meter: 1'000 pulse/40 ms
Indirect meter (CT): 10 pulse/120 ms

LCD-Display

A 38x28mm graphic LC-Display allows for effortless read-out of parameters and settings. The well-arranged and intuitive operation makes the adjustment of settings like Language, CT-ratio or date and time very easy and helps in the day to day work with the energy meter.

All logbook entries relevant to calibration-law as well as the load profiles can be read-out on the display.

MID B+D und PTB-A 50.7

The EMU Professional II can be used for accounting purposes ex-factory due to its MID B + D certificate.

• MID-Module B = Type test
• MID-Module D = Certified processes in production
• PTB-A 50.7 = cerified load profile conforming to legal requirements in differentiation of in-house energy production and third party import.

The additional certification for module D, QM-System for production and final testing allows the use of all EMU Professional II for accounting purposes.

Differentiation of in-house energy production and third party import

Starting on January 1st 2022 corporations located in Germany that use in-house generated energy are legally obligated to record their self-produced and self-consumed energy according to paragraph 62b of the Erneuerbare-Energien-Gesetz (EEG). This recording must happen every 15 minutes on a officially calibrated measurement system.

The EMU Professional II LP possesses the following necessary features for the national certificate PTB-A 50.7.

- Internal, easily reviewed logbook for recording the following calibration-law relevant events and changes in configuration:
- Adjustments of date or time
- Adjustments to the current transformer ratio

- A real-time clock with synchronization via a NTP time server. In case of a power outtage a super capacitor sustains this clock for numerous days.

- The load profile is saved every 15 minutes. The stored data can be easily reviewed on the Professional II and possesses a storage depth of over 3 years.

- The load profile can also be reviewed via the following interfaces. TCP/IP Interface with integrated webserver, NTP, Modbus TCP and API.

Supply for Germany: Our branch office in Germany distributes the EMU Professional II in Germany. Quotes & Webshop: www.emu-metering.de

TCP/IP Interface

The TCP/IP interface is directly integrated into the meter to avoid manipulation and contamination. This interface lends itself for third-party-differentiation of energy export.

Overview of functions

• Display up-to-date measurements
• Logging of various measurements
• Access protection through password
• Remote read-out via Modbus TCP
• HTTP-GET API
• NTP Time server
• Export of saved data

Storage

Integrated load profile storage with a memory depth of over 3 years for 15 minutes intervals.
The following measurements can be logged:

• Active Power Consumption
• Active Power Export
• Active Power per phase L1 / L2 / L3
• Current per phase L1 / L2 / L3
• Voltage per phase L1 / L2 L3

M-Bus Interface

The M-Bus interface according to EN13757-2, -3 (was EN1434-3) is directly integrated into the meter to avoid manipulation and contamination.

•  Spring clamp pins
• Connectors: 2x2 M-Bus pins to facilitate easier connection of multiple M-Bus compatible meters

Many measurements can be read-out over the M-Bus interface. Examples are active and reactive energy, current and voltage.
Configuration of the M-Bus can be done manually via the buttons on the device or via our own EMU MB-Connect software. This software allows for specific arrangements of the M-Bus protocols. With these available systems one can adjust the primary and secondary addresses as well as the Baud rate. The strain put on the EMU Professional II by the M-Bus amounts to an average of only 1.5 mA.