Interface Module XC Modbus
Protocol Converter / User Manual
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E120103819092
Baer Energie- & Messtechnik GmbH Siemensstr. 3 D-90766 Fürth Phone +49 911 970590 Fax +49 911 9705950
General
The Interface Module XC Modbus is designed for use with the EMH LZQJ-XC and DMTZ-XC
meters. The module is equipped with a RS485 (2 wires) interface. The module can be plugged
easily into the module compartment of the meter. It can be mounted or exchanged during
operation (without breaking approval seal). An integrated Modbus interface provides a simple
means of connecting multi-energy meters. This makes multi-energy applications an affordable
proposition for domestic use. Due to the communication, the modules are suitable for a lot of
control centres.
Compatible meters
LZQJ-XC (special meter for industrial applications):
- Standard meter for direct connection
- Transformer connection version Cl. B (Cl. 1)
- Precision meter Cl. C (Cl. 0.5S)
- Precision meter Cl. 0,2S
DMTZ-XC (industry meter)
Functions
RS-485 (2 wires) interface for bi-directional
communications
Protocol converter for meter data (max. 125 values)
into Modbus-Format (non transparent data readout)
Transmission protocol: Modbus RTU (8N1)
Internal communication interface for the transfer
service data (TS) between the meter and the
interface module
Internal power supply from meter
Exchangeable during the meter operation
Safety Notes
The owner of the interface modules is responsible that all persons engaged on
work with the modules:
• Are competent and qualified in accordance with national regulations (see ISSA
"Guideline for Assessing the Competence of Electrically Skilled Persons").
• Have read and understood the relevant sections of the user manual.
• Strictly observe the safety regulations (according to the following section) and
the instructions in the individual chapters.
The owner of the modules is also responsible for:
• The protection of persons.
• The prevention of material damage.
• The training of personnel.
The following safety regulations must be observed at all times:
• Devices which have fallen down should not be installed, even if no damage is apparent, and should
be returned for testing to an authorised service centre (internal damage possible).
• Modules must never be cleaned with running water or high pressure devices. Water can cause
short-circuits or damage el. components.
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