Baer Interface Module XC User manual

Interface Module XC
Protocol Converter / User Manual
Page 1 from 12
E130506819092
Baer Energie- & Messtechnik GmbH Siemensstr. 3 D-90766 Fürth Phone [phone] Fax [phone]
General
The Interface Module XC is designed for use with the EMH LZQJ-XC and DMTZ-XC
meters. The module is equipped with an M-Bus (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 M-Bus interface (Protocol Converter to DIN EN
13757-3) 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 (residential meter)
Functions
M-Bus interface (2 wires, passive) for bi-directional
communications;
Alternative: BFC-Bus (BAER Field Control, 56VDC);
Transmission protocol: M-Bus (DIN EN 13757-3:2013-08);
Internal communication interface for the transfer data
between the meter and the interface module (service data
list / table TS);
Protocol converter for meter data into M-Bus-Format
(non transparent data readout);
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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E130506819092
Interface Module XC
Protocol Converter / User Manual
Baer Energie- & Messtechnik GmbH Siemensstr. 3 D-90766 Fürth Phone [phone] Fax [phone]
Installation Hints
The installation must be done in a way, that even in the case of cable break no dangerous voltages
are applied to touchable parts of the module. Generally, meters are delivered with the communication
modules installed. The fitting of a meter with a communication module is, therefore, an exception and
can be necessary e.g. when a module needs to be replaced.
Work on electrical installations and equipment may only be performed by adequately trained
qualified and in conformity with the applicable national rules and regulations.
Strictly observe the safety regulations!
The interface module is exchangeable during the meter operation. Fit the interface module in the meter
as follows:
Installation of the interface module:
1. Check the interface module.
2. Remove the terminal cover [5].
3. Open the transparent module cover [1].
4. Insert the interface module [3] carefully at the
place provided in the meter [2].
5. Push the module in to the internal contacts.
6. Connect the cable.
7. Close the transparent module cover [1].
8. Close the terminal cover [5].
Removing of the interface module:
9. Remove the terminal cover [5].
10. Open the transparent module cover [1].
11. Disconnect the cable.
12. Remove the interface module.
13. Close the transparent module cover [1].
14. Close the terminal cover [5].
LED Displays
Three LED’s displaythe current operatingstatus of the module and give information about the data
transfer.
Power/Tx


green
Status and communication via M-Bus interface:
LED signals, that the module is supplied with power
LED goes off during transmit data via M-Bus interface
Rx


yellow
Communication via M-Bus interface: receive data
Error


red
Communication error (internal meter interface), LED flashes in 3 sec.
cycle

Interface Module XC
Protocol Converter / User Manual
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E130506819092
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Communication (M-Bus, Protocol Converter)
The M-Bus interface is conforming to DIN EN 13757-3:2013-08.
Fixed baud rate from the 2nd electrical interface (see EMH COMBI-TOOL-Software: communication
interfaces, set please the data transmission at a fixed baud rate without baud rate changeover), data
format: 8E1;
For configuration purposes of the service table TS please contact the meter manufacturer or
operators.
Parameterisation of the meter (EMH COMBI-TOOL-Software)
At the first read the read all data from the meter (via optical IR interface):
Baud rate
The Interface Module XC uses the same baud rate like the communication interface at the
meter. For setting use please the EMH COMBI-TOOL-Software:
Menu Meter Interfaces Electrical interface:
For correct working set please a fixed bad rate (e.g. 9600 baud). If you use the baud rate changeover
according to mode C: the communication is possible with 300 baud only. For the addressing set the
value “optionally” or “ignore”.
Note: In many M-Bus systems is the standard baud rate 2400 baud.
Reset
Note: The EMH LZQJ-XC meter performs automatically a daily reset at 00:00 in the interface module.

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E130506819092
Interface Module XC
Protocol Converter / User Manual
Baer Energie- & Messtechnik GmbH Siemensstr. 3 D-90766 Fürth Phone [phone] Fax [phone]
Service Data List / Table TS and M-Bus-Address
For setting the meter data list use menu
Lists Reading lists Service Table TS:
Note: The M-Bus module XC uses for ID-Addresses the OBIS Register 0.0.0 (secondary address)
and 0.0.1 (primary address) in the service data list TS.
In this example we use the identification number 1 (OBIS 0.0.1) for M-Bus primary address:
menu Meter Meter ID OBIS Register 0.0.1, e.g. value 123 (:= 00000123):
Standards for M-Bus addresses:
Primary address: OBIS Register 0.0.1 (Identification 1), range 0 to 250, default := 1
Secondary address: OBIS Register 0.0.0 (device number / fabrication number), range 0 to
99999999, default := 0
For determining the address it is possible to use the wildcard searching procedure (answer E5Hex).

Interface Module XC
Protocol Converter / User Manual
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E130506819092
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Accepting the meter data (OBIS-Registers)
The Interface Module XC reads the service data list / table (TS) from the meter periodically
(interval between two readings: ca. 1 second) and creates an internal table. The OBIS coded values
from the meter will be convert to the M-Bus data.
This version of the implementation supports following OBIS-Registers:
Energy: Counter values for active, reactive and apparent energy (OBIS-Registers 1.8.x, 2.8.x,
3.8.x, 4.8.x, 5.8.x, 6.8.x, 7.8.x, 8.8.x, 9.8.x and 10.8.x).
Power: Instantaneous values (average) for active and reactive power, voltage, current and line
frequency (OBIS-Registers 1.25 at seq., 3.25 at seq., 11.25 at seq., 12.25 at seq. and 14.25);
Last average value for active and reactive power (OBIS-Registers 1.5.t, 2.5.t, 3.5.t and 4.5.t).
Possible OBIS-Registers in the service data list / table TS:
OBIS-Register
Description
0.0.0
Identification 0 (device address / meter number): secondary address
0.0.1
Identification 1: primary address; possible range: 0 to 250
1.5.t
Last average 1 value active power, import*
t = tariff (0..8),
s = stored values (0..99)
21/41/61.5.t
Last average 1 phase 1/2/3*
2.5.t
Last average 1 value active power, export*
22/42/62.5.t
Last average 1 phase 1/2/3*
3.5.t
Last average 1 value reactive power, import*
23/43/63.5.t
Last average 1 phase 1/2/3*
4.5.t
Last average 1 value reactive power, export*
24/44/64.5.t
Last average 1 phase 1/2/3*
1.8.t*s
Counter value active energy, import
2.8.t*s
Counter value active energy, export
3.8.t*s
Counter value reactive energy, import
4.8.t*s
Counter value reactive energy, export
5.8.t*s
Counter value reactive energy, Q1
6.8.t*s
Counter value reactive energy, Q2
7.8.t*s
Counter value reactive energy, Q3
8.8.t*s
Counter value reactive energy, Q4
9.8.t*s
Counter value apparent energy, import
10.8.t*s
Counter value apparent energy, export
1.25
Instantaneous value 3 active power, cumulative
3.25
Instantaneous value 3 reactive power, cumulative
11.25
Instantaneous value 3 current, cumulative
12.25
Instantaneous value 3 voltage, cumulative
14.25
Instantaneous value 3 line frequency
21/41/61.25
Instantaneous value 3 active power, phase 1/2/3
23/42/63.25
Instantaneous value 3 reactive power, phase 1/2/3
31/51/71.25
Instantaneous value 3 current, phase 1/2/3
32/52/72.25
Instantaneous value 3 voltage, phase 1/2/3

Page 6 from 12
E130506819092
Interface Module XC
Protocol Converter / User Manual
Baer Energie- & Messtechnik GmbH Siemensstr. 3 D-90766 Fürth Phone [phone] Fax [phone]
Other OBIS-Registers will not be stored and cannot be transmitted.
*: possible since firmware version 5
Output of the meter values via M-Bus
The OBIS coded values from the meter will be convert to the M-Bus data (DIFs/VIFs: Data
Identification Fields/Value Identification Fields according to DIN EN 13757-3:2013-08 without
manufacturer specific extensions).
Data field coding: 32 Bit Integer only (data field := 0100Binary), type B with the sign.
Telegram format: variable data respond.
Used telegram formats (examples):
Master: SND_NKE (Send Link Reset)
Answer: E5Hex (Acknowledge)
Master: SND_UD (CI-Field 52Hex for selection the secondary address; request via address FDHex)
Answer: E5Hex (Acknowledge)
Master: REQ_UD2 (Request User Data Class 2)
Answer: RSP_UD (Respond User Data)
Further specifications:
The following definitions shall also apply for the selection of a new secondary address (SND_UD):
- the manufacturer code (15Hex A8Hex for “EMH”) will be evaluated, wildcard (FFHex FFHex) is possible;
- the version byte (Ver) will be ignored: all bytes are possible (e.g.: FFHex);
- the medium byte (02Hex for electricity) will be evaluated, wildcard (FFHex) is possible;
Data encryption is not allowed.
Max. telegram length: 252 bytes (max. ca. 30 values).
Support only for mode 1 (CI-Field): the least significant byte (LSB) of a multibyte record is
transmitted first.
Status byte: only bit 4 (“temporary error”) is used: internal communication error between the
modules and the meter.
Implementation of one FCB-Bit (Frame Count Bit) only (use either the primary or secondary
address).

Interface Module XC
Protocol Converter / User Manual
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E130506819092
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Structure of a data telegram (RSP_UD)
Name
No. of
Bytes
Value
(hex)
Description
Start
1
68
L
1
LL
Length of the telegram
L
1
LL
Length of the telegram
Start
1
68
C
1
08
Control field: RSP_UD
A
1
PAdr
Primary address (OBIS-Register 0.0.1)
CI
1
72
Control information field: variable data respond
Identification no.
4
SAdr
Secondary address (OBIS-Register 0.0.0)
Manufacturer code
2
A8 15
Code for “EMH”: 15 A8
Version of device
1
Ver
Version of the interface module
Medium
1
02
Electricity
Access No.
1
AccNo
Access number is increased by one after each
respond user data (RSP_UD) from the slave
Status
1
Stat
Status
Signature
2
00 00
Not used
User data
n
...
Check sum
1
xx
Arithmetical sum of the data mentioned above
Stop
1
16
Examples for read out with primary address:
Master: 10 40 01 41 16 (primary address: 1 / SND_NKE: Send Link Reset)
Answer: E5
Master: 10 40 FE 3E 16 (primary address: wildcard 254 = FEHex)
Answer: E5
Master: 10 40 7B BB 16 (primary address: 123 = 7BHex)
Answer: E5
Master: 10 7B 7B F6 16 (REQ_UD2: Request User Data with primary address: 123 = 7BHex)
Answer: 68 0F 0F 68 08 7B 72 87 98 16 04 A8 15 00 02 00 10 00 00 FD 16
(empty message)
Master: 10 5B 7B D6 16 (REQ_UD2: Request User Data with primary address: 123 = 7BHex)
Answer: 68 EA EA 68 08 7B 72 87 98 16 04 A8 15 00 02 01 00 00 00 04 03 C9 16
00 00 C4 05 03 6D 13 00 00 84 10 03 C2 10 00 00 C4 15 03 A8 0E 00 00
84 20 03 06 06 00 00 C4 25 03 C5 04 00 00 04 FB 82 73 90 03 00 00 C4
05 FB 82 73 06 02 00 00 84 10 FB 82 73 4A 02 00 00 C4 15 FB 82 73 54
01 00 00 84 20 FB 82 73 46 01 00 00 C4 25 FB 82 73 B1 00 00 00 04 2B
0C 00 00 00 04 AB FC 01 00 00 00 00 04 AB FC 02 00 00 00 00 04 AB FC
03 0C 00 00 00 04 FB 14 05 00 00 00 04 FB 94 FC 01 00 00 00 00 04 FB
94 FC 02 00 00 00 00 04 FB 94 FC 03 05 00 00 00 04 FD D8 FC 01 10 00
00 00 04 FD D8 FC 02 0E 00 00 00 04 FD D8 FC 03 13 03 00 00 04 FD C7
FC 01 3E 00 00 00 04 FD C7 FC 02 38 00 00 00 04 FD C7 FC 03 30 59 00
00 04 FB 2D 87 13 00 00 0C 16 (RSP_UD: Respond User Data)

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E130506819092
Interface Module XC
Protocol Converter / User Manual
Baer Energie- & Messtechnik GmbH Siemensstr. 3 D-90766 Fürth Phone [phone] Fax [phone]
Examples for read out with secondary address:
Master: 68 0B 0B 68 53 FD 52 00 00 00 00 FF FF FF FF 9E 16 (selection with the
secondary address: 00 00 00 00)
Answer: E5
Master: 68 0B 0B 68 53 FD 52 FF FF FF FF FF FF FF FF 9A 16 (selection with the
secondary address: wildcard FF FF FF FFHex)
Answer: E5
Master: 68 0B 0B 68 53 FD 52 87 98 16 04 FF FF FF FF D7 16 (selection with the
secondary address: 04 16 98 87Hex)
Answer: E5
Master: 10 7B FD 78 16 (REQ_UD2: Request User Data)
Answer: 68 EA EA 68 08 7B 72 87 98 16 04 A8 15 00 02 02 00 00 00 04 03 77 15
00 00 C4 05 03 6D 13 00 00 84 10 03 E6 0F 00 00 C4 15 03 A8 0E 00 00
84 20 03 90 05 00 00 C4 25 03 C5 04 00 00 04 FB 82 73 F5 02 00 00 C4
05 FB 82 73 06 02 00 00 84 10 FB 82 73 E5 01 00 00 C4 15 FB 82 73 54
01 00 00 84 20 FB 82 73 0F 01 00 00 C4 25 FB 82 73 B1 00 00 00 04 2B
0C 00 00 00 04 AB FC 01 00 00 00 00 04 AB FC 02 00 00 00 00 04 AB FC
03 0C 00 00 00 04 FB 14 05 00 00 00 04 FB 94 FC 01 00 00 00 00 04 FB
94 FC 02 00 00 00 00 04 FB 94 FC 03 05 00 00 00 04 FD D8 FC 01 0C 00
00 00 04 FD D8 FC 02 08 00 00 00 04 FD D8 FC 03 08 03 00 00 04 FD C7
FC 01 3F 00 00 00 04 FD C7 FC 02 38 00 00 00 04 FD C7 FC 03 49 59 00
00 04 FB 2D 87 13 00 00 32 16 (RSP_UD: Respond User Data)
Master: 10 40 FD 3D 16 (deselection of the secondary address allocation)
Answer: E5

Interface Module XC
Protocol Converter / User Manual
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Technical data
Housing:
Polycarbonate housing with terminals for using with EMH LZQJ-XC and
DMTZ-XC meters for residential and industrial applications
Degree of protection:
IP20 (according to IEC 60529)
Protection class:
2
Temperature range:
-25°C to +55°C (operational)
-40°C to +80°C (storage temperature)
Relative humanity:
0..95%, non-condensing
Dimensions:
Ca. 50mm x 105mm x 27mm (W x H x D)
Nominal voltage:
Internal power supply from LZQJ-XC or DMTZ-XC meter
M-Bus load:
1,5mA, max. voltage: 56VDC
Battery:
None
Installation:
Exchangeable during the meter operation
LED displays:
3 LEDs:  
(green) Power/Tx: power / transmit data via M-Bus
 
(yellow) Rx: receive data via M-Bus
 
(red) Error: internal communication error
Interface:
M-Bus (2 wires, passive) according to DIN EN 13757-2 (Physical Layer)
Alternative: BFC-Bus (BAER Field Control, 56VDC)
Baud rate:
300 to 9600 baud (fixed baud rate)
Data format:
8E1
Data readout:
Internal service data list / table TS
Transmission protocol:
According to DIN EN 13757-3:2013-08 (Application Layer) with fixed
baud rate
Order number:
#12760
Accessories:
Bus Master / Repeater / Mini-Master
AMR-Software: SIGLON © / Field Control Center: Meter2SCADA ©

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E130506819092
Interface Module XC
Protocol Converter / User Manual
Baer Energie- & Messtechnik GmbH Siemensstr. 3 D-90766 Fürth Phone [phone] Fax [phone]
Dimensions