BERG DCi User manual

Edition: 28.01.2008
Product manual for the
BERG DCi - Meter
Installation I Device description I Operation

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All of the contents published in this manual are copyright. Translating, reprinting,
duplicating and also saving of this manual in data processors require the exclusive
permission from BERG.
All of the trademarks named in this manual are the property of BERG or the respective
title holders.
BERG Energiekontrollsysteme GmbH is certified accord. to DIN ISO 9001:2000
and continually endeavors to improve their products.
The contents of this manual and the technical specifications can be extended,
altered or removed without prior notice.
The description of the product specifications in this manual does not represent
part of a contract.
© 2008 BERG Energiekontrollsysteme GmbH. All rights reserved.
If you have any questions or inspirations you can contact us:
BERG GmbH
Fraunhofer Str. 22
D-82152 Martinsried
GERMANY
Tel.: [phone]
Fax: [phone]
Service-Hotline: [phone] (14Ct./Min.)
www.berg-energie.de

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Contents page
1 Prologue...............................................................................................................5
1.1 Safety tips ............................................................................................................. 5
1.2 Maintenance and guarantee tips ........................................................................... 5
2 Mounting and installation...................................................................................6
2.1 Mounting the meter ............................................................................................... 6
2.2 Installation ............................................................................................................. 7
2.2.1 Connection examples............................................................................................ 8
3 General description...........................................................................................10
4 Standards and regulations...............................................................................11
5 Housing-, operation and display elements .....................................................12
5.1 Overview ............................................................................................................. 12
5.2 Display ................................................................................................................ 13
6 Technical description .......................................................................................14
6.1 Technical data ..................................................................................................... 14
6.2 Function circuit diagrams .................................................................................... 15
6.2.1 Direct connected meter up to 65 A ...................................................................... 15
6.2.2 Transformer operated meter up to 5 A ................................................................ 15
6.3 Inputs .................................................................................................................. 16
6.4 Outputs................................................................................................................ 16
6.4.1 Secondary pulse output....................................................................................... 16
6.4.2 Primary pulse output ........................................................................................... 16
6.4.3 Impulse-LED ....................................................................................................... 17
6.5 Interfaces ............................................................................................................ 17
6.5.1 M-Bus-interface................................................................................................... 17
6.5.2 LON-interface ...................................................................................................... 17
6.5.3 RS485-interface .................................................................................................. 18
6.6 Battery................................................................................................................. 19
6.7 Path separator..................................................................................................... 19
7 Operation of the meter......................................................................................20
7.1 Display control..................................................................................................... 20
7.1.1 Standard menu.................................................................................................... 21
7.1.2 Test mode (for certification only) ......................................................................... 24
7.1.3 Address menu ..................................................................................................... 26
7.1.4 Edit menu ............................................................................................................ 28
8 Appendix............................................................................................................33
8.1 EC Declaration of conformity............................................................................... 33
8.2 Declaration of Conformity to EC type-examination certificate ............................. 34

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Figure index
Figure 1: Dimensions (direct connected meter) .............................................................. 6
Figure 2: Housing-, operation and display elements..................................................... 12
Figure 3: Layout of the display...................................................................................... 13
Figure 4: Function circuit diagram (direct connected meter)......................................... 15
Figure 5: Function circuit diagram (transformer operated meter).................................. 15
Figure 6: System layout - RS485-two wire bus ............................................................. 18
Figure 7: Detail drawing - RS485 terminating resistor .................................................. 18
Figure 8: Path separator ............................................................................................... 19
Table index
Table 1: Terminal dimensions, connection-cross sections, torques............................... 8
Table 2: Housing- operation- and display elements..................................................... 12
Table 3: Description of the display elements ............................................................... 13
Table 4: Technical data ............................................................................................... 14
Table 5: Specifications of the inputs ............................................................................ 16
Table 6: Specifications of the outputs.......................................................................... 16
Table 7: Specifications of the RS485-interface............................................................ 18
Table 8: Error code description.................................................................................... 20
Table 9: Standard menu .............................................................................................. 23
Table 10: Test mode...................................................................................................... 26
Table 11: Error code description.................................................................................... 27
Table 12: Digitness of the energy registers ................................................................... 28
Table 13: Edit mode ...................................................................................................... 32
Abbreviations
A Active energy
+A Positive active energy (customer imports from utility)
-A Negative active energy (customer exports to utility)
Cl. Accuracy class
DIN Deutsches Institut für Normung e.V.
(German Institute for standards)
EN European standards
EVU Utility
IEC International Electromechanical Commission
Imp. Impulse
Imp./kWh Impulse per kWh
L1, L2, L3 External conductor
LED Light Emitting Diode
N Neutral conductor
P Active power
PTB PTB (German certified body)
S0 Interface accord. to DIN 43 864

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1 Prologue
This manual describes all designs of the DIZ meter (firmware version 3.03 and higher).
Please note that the meters can be designed differently regarding, for example,
configuration, interfaces in-/outputs etc. It is therefore possible that meter features are
described here which do not apply to the meter(s) used by you.
1.1 Safety tips
The meters are to be used exclusively for measuring electrical energy and must only be
operated within the specified technical data (see also nameplate).
When installing or changing the meter, the conductor to which the meter is connected
must be de-energised. Contact to parts under voltage is extremely dangerous. Therefore
the relevant back-up fuse is to be removed and stored so that other people cannot insert
this unnoticed.
Before opening the meter, the secondary circuit of the current transformer must definitely
be short circuited. The high voltage on the current transformer is extremely dangerous
and destroys the current transformer.
With incorrect meter installation the S0-inputs can lead to line voltage.
Attention: Danger!
The local standards, guidelines, regulations and instructions are to be obeyed.
Only authorized personnel are permitted to install the electricity meters.
With storage, transport and operation, the meter it is to be protected against dampness,
dirt and damage. During operation, pay attention that the meter is sufficiently cooled.
1.2 Maintenance and guarantee tips
The meter is maintenance-free. With damages (e.g. due to transportation, storing) no
repairs may be carried out independently.
As soon as the meter is opened, the guarantee claims cease. The same applies in case
the defect can be traced back to external influences (e.g. lightning, water, fire, extreme
temperatures and weather conditions, improper or negligent use or treatment).

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2 Mounting and installation
2.1 Mounting the meter
Meters from the series DIZ are designed for mounting on DIN-rails TH 35-7.5 accord. to
DIN 60715.
Figure 1: Dimensions (direct connected meter)

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2.2 Installation
When installing the meter, please pay careful attention to the connection diagram which
can be found on the inside the terminal cover. On page 8 you can find examples of
connection diagrams.
The direct connected version from the series DIZ can be connected to a 3- or 4-phase
busbar with a left-sided N-connection. The busbars are suitable e.g. for automatic
circuit-breakers from AEG, Hager, Siemens, Moeller, Hager and Geyer.
Meters for direct connection are to be protected against short circuits with a back-up fuse
of 63 A and for transformer connected meters of < 10 A in the voltage path. The control
input is to be protected with a back-up fuse of 0.5 A.
In order to protect the DIZ from unauthorized access, the meter can be equipped with a
seal at the sealing eye can be sealed (see page 12).
The current and voltage supply inputs, the control input and the pulse output can be
found on the top of the meter.
The current outputs, the optional electrical interface and, with direct connected meters,
the connection for the busbars can be found on the bottom of the meter.
S0-output Input
8
U3
2
U1
5
U2
1
I1
4
I2
7
I3
10/11
N
41/40 13/15
M-Bus-interface Connection for busbars
12
N
3
I1
6
I2
9
I3
23/24
LON-/RS485-interface
14/16

8
Current terminals /
N-terminal Voltage terminals Auxiliary terminals
up to 65 A up to 5 A up to 65 A up to 5 A up to 65 A up to 5 A
Terminal
dimensions
W x H (d) mm 6.9 x 7.9 3.3 x 3.0 2.7 x 3.0 2.7 x 3.0 d = 2.5 d = 2.5
Maximum
connection-cross
section (mm²) 16 42.5 2.5 2.5 2.5
Maximum
torques for
terminals (Nm) 3.0 0.5 0.5 0.5 0.8 0.8
Table 1: Terminal dimensions, connection-cross sections, torques
Note:
Please ensure when installing the meter that, after threading the connecting leads,
the screws are tightened to the correct torque according to EN 60999 in order to
guarantee a safe contact. The torque depends on the type of the connecting leads
and the maximum current.
In order to avoid damage to the meter the valid, maximum torque for the terminal
clamps may not be exceeded.
2.2.1 Connection examples
In the following you can find examples of some connection diagrams. When connecting a
meter pay attention to the connection diagram which can be found on the inside of
the terminal cover or in the delivery documents.
2-wire version, direct connection
3-wire version, connected to current- and voltage transformer
ES: Control input (system voltage)
ES: Control input (system voltage)

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4-wire version, connected to a current transformer
4-wire version, direct connection
4-wire version, connected to current and voltage transformer
4-wire version, connected to current – and voltage transformers
(3 voltage transformers) (auxiliary circuit with 2 current transformers)
4-wire version, connected to current- and voltage transformers
(auxiliary circuit with 2 current transformers)
ES: Control input (system voltage)
ES: Control input (system voltage)
ES: Control input (system voltage)
ES: Control input (system voltage)
ES: Control input (system voltage)

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3 General description
The DIZ meter is a digital 1- or 2- tariff meter for measuring positive- and negative active
energy in 2-, 3- and 4-wire networks. Tariff switching takes place via an external control
input.
DIZ meters are principally used for energy data registration in the industry and building
installation, switching stations and the field of energy supply.
The compact design of this meter allows “space saving” mounting (only 6 pitch wide) and
also connection via cable bridges or DIN-Rail.
The DIZ meter in the transformer connected version is equipped with a transformer ratio
which can be set for the registration of the real energy consumption. The transformer
ratio can be set directly at the meter via the operation button (only with uncertified
meters).
The energy consumption values are displayed with 8 digits on an LC-Display.
They can, however, also be given out via a secondary or primary pulse output and/or via
an electrical interface (M-Bus, LON or RS485). With the secondary pulse output the
pulse constants and pulse length can be set, with the primary pulse output they are fixed.
The DIZ is available in class accuracy 1 or 2 according to IEC 62053-21 resp. class
accuracy B or A according to EN 50470-1, -3.

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4 Standards and regulations
DIN EN 14908-1, -2 Open Data Communication in Building Automation, Controls
-3, -4 and Building Management - Building Network Protocol
DIN EN 13757-2, -3 Communication systems for meters and remote reading of
meters
EN 50470-1 Electricity metering equipment (a.c.) - Part 1:
General requirements, tests and test conditions -
Metering equipment (class indexes A, B and C)
EN 50470-3 Electricity metering equipment (a.c.) - Part 3:
Particular requirements - Static meters for active energy
(class indexes A, B and C)
DIN EN 60529 Degrees of protection provided by enclosures (IP code)
DIN EN 60715 Dimensions of low-voltage switchgear and control gear -
standardized mounting on rails for mechanical support of
electrical devices in switchgear and control gear installations
DIN EN 61000-3-2, Electromagnetic compatibility (EMC)
4-2, -4-3, -4-4, -4-5,
-4-6, -4-11, -6-2
IEC 60068-2-30 Environmental testing - Part 2-30: Tests - Test Db:
Damp heat, cyclic (12 h + 12 h cycle)
IEC 62052-11 Electricity metering equipment (AC) - General requirements,
tests and test conditions - Part 11: Metering equipment
IEC 62053-21 Electricity metering equipment (a.c.) - Particular Requirements
- Part 21: Static meters for active energy (classes 1 and 2)
ITU-T V.11 Electrical characteristics for balanced double-current
interchange circuits operating at data signaling rates
up to 10 Mbit/s
TIA/EIA-485 Electrical characteristics of generators and receivers for
use in balanced digital multipoint systems

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5 Housing-, operation and display elements
5.1 Overview
Figure 2: Housing-, operation and display elements
No. Description
1Foldaway terminal cover
2LC-Display
3Seal eye
4Neuron-ID-number (meters with LON-interface only)
5Protection class II
6Type of network and load
7Pay attention to package insert
8Non-reverse ratchet or bidirectional meter ( )
9EC type-examination certificate (comprising:
first line: examination certificate number
second line: temperature key, CE-sign, attribute of metrology + year of the
judgment of conformity, designation of the notified body)
or national approval sign (e.g. PTB: )
10 Panel for instrument transformer nameplate
11 Model year
12 Call-up button for operating the meter
13 Foldaway terminal cover
14 Serial number
15 Bar code
16 Test LED
17 Type designation / -key
18 Pulse constants for LED and pulse output
19 Voltage, current, frequency and accuracy class
20 Contact sequence number
Table 2: Housing- operation- and display elements
1 2 83 5 6 7 9 10 12
13 14 15 16 17 18 19 20
411
xx.xx
xx.xx

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5.2 Display
The DIZ meter has a liquid crystal display (LCD) with the following layout.
Figure 3: Layout of the display
Nr. Description
1Phase display
L1, L2, L3 are continually lit up: Phase voltages are applied.
L1, L2, L3 flash: Phase sequence of the voltage is wrong
2Display of active tariffs
T1: Tariff 1 is active
T2: Tariff 2 is active
3Energy direction display
+P is continually lit up: Meter has now been started up and
registers positive active energy.
-P is continually lit up: Meter has now been started up and registers
negative active energy.
-P flashes: Non-reverse ratchet is active, energy is not
registered.
4Hand-Symbol
flashes: Edit mode is active or was ended with
“Escape”. The edit data can still be changed
(not certifiable).
continually lit up: Edit mode was locked with “Close” and can
only be reactivated with a user password
(not certifiable) if the meters are configured in
a fitting manner.
off: Edit mode was locked with “Close” and
cannot be reactivated (certifiable).
5Tariff display
Tariff designation of the displayed energy value
6Energy direction of the register
In: register for measuring positive active energy
Out: register for measuring negative active energy
7Value range
Display the contents of the register
8Star-Symbol
flashes: Test mode active. Activation took place from
out of the standard mode.
9Display of the units
Unit of the displayed value in the value range
10 Communication symbol
Lights up when communication with the electrical interface
Table 3: Description of the display elements
5
1 2 3 4
6 7 8 9 10

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6 Technical description
6.1 Technical data
Transformer operated meter
5II1 A / 5 + 1 A and 1 A Direct connected meter 5(65) A / 0.25 – 5(65) A
4-wire meter 3x230/400 V, 3x290/500 V,
3x58/100 V, 3x63/110 V 3x230/400 V, 3x290/500 V
3-wire meter 3x100 V, 3x110 V,
3x400 V, 3x500 V 3x400 V, 3x500 V
Voltage
2-wire meter 1x100 V, 1x110 V, 1x230 V 1x230 V
Starting current 2 mA 20 mA
Frequency 50 Hz, 60 Hz, 162/3Hz
Accuracy active energy Cl. 1 or Cl. 2 accord. to IEC 62053-21
Cl. B or Cl. A accord. to EN 50470-1, -3
Measuring types active energy +A (with non-reverse ratchet), option: -A
LED 1 000...400 000 Imp./kWh
(depending on meter type) 1 000...2 000 Imp./kWh (depending on meter type)
primary output 1 Imp./kWh
(fixed, pulse length 500 ms)
secondary output 100...200 000 Imp./kWh
(depending on meter type) 10...2 000 Imp./kWh (depending on meter type)
Meter constants
configuration ability output pulse constant with certified version resp.
with Declaration of Conformity of MID is fixed parameterisation,
with uncertified version settable via mechanical button
Energy registers number maximum 2 tariff register (T1 / T2) for each energy direction
number maximum 1
Control inputs for
tariff switching (option) system voltage 58...230 V AC
Data retention time without voltage in the FLASH / EEPROM, at least 20 years
LC-Display 8 digits, 3 with decimals digits 8 digitsDisplay
digit size in the value range 4 x 6 mm
Operation mechanical button for operation of display
M-Bus accord. to DIN EN 13757-2, -3 (300…9600 baud)
LON accord. to DIN EN 14908-1, -2, -3, -4
Data interfaces
(option)
RS485 accord. to TIA/EIA-485 and ITU-T V.11 (300…9600 baud)
number maximum 1
Opto-MOSFET maximum 250 V AC/DC, 100 mA for impulse transmission
(fulfils S0-specifications)
Output (option)
S0-output maximum 27 V DC, 27 mA (passive)
Energy supply switched-mode power supply 3-phase from the measuring voltage
voltage path < 2.0 VA / < 1.0 W
Power consumption
per phase current path < 0.5 VA < 2.5 VA
isolation resistance Isolation: 4 kV AC, 50 Hz, 1 min
surge voltage EMV: 4 kV, Impulse 1.2/50 μs, 2 Ω
ISO: 6 kV, Impulse 1.2/50 μs, 500 Ω
EMC-characteristics
resistance against HF-fields 10 V/m (under load)
Temperature range operation / limit and storage -25°C...+55°C / -40°C...+70°C
Relative humidity 95%, non-condensing accord. to IEC 62052-11,
EN 50470-1, IEC 60068-2-30
dimensions 6 pitch = 107.5 x 89.5 x 64.2 mm (B x H x D)
class of protection 2
degree of protection housing /
terminal block IP 20
housing material polycarbonate
fire characteristics flame-inhibiting (without halogen)
Housing
weight approx. 400 g
current / neutral conductor maximum 4 mm² maximum 16 mm²Connection-cross section
voltage / auxiliary terminals maximum 2.5 mm² maximum 2.5 mm²
buffer battery for reading the display without power (option)
measuring of instantaneous values of power, voltage and current
Further features
The meter can be connected
to a 3- or 4-phase busbar with
left-sided N connection.
The busbars are suitable e.g.
for automated devices from
AEG, Siemens, Moeller, Hager
and Geyer.
Table 4: Technical data

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6.2 Function circuit diagrams
6.2.1 Direct connected meter up to 65 A
Figure 4: Function circuit diagram (direct connected meter)
6.2.2 Transformer operated meter up to 5 A
Figure 5: Function circuit diagram (transformer operated meter)

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6.3 Inputs
In the two tariff version the DIZ meter has a control input (system voltage)
for tariff switching.
Specifications
System voltage 58...230 V AC (standard)
Table 5: Specifications of the inputs
6.4 Outputs
The DIZ has a potential free S0-output (accord. to DIN 43 864) or a potential free
MOSFET-output (semi-conductor relay). The MOSFET-outputs can be designed as
a make- or break contact.
Specifications
Opto-MOSFET max. 250V AC/DC, 100 mA (standard)
S0-output max. 27 V DC, 27 mA (passive)
Table 6: Specifications of the outputs
6.4.1 Secondary pulse output
If transformer ratios are set they do not have any effect on the impulse output.
The pulse time is 30, 50 or 100 ms depending on the meter design. The energy pulses
(RA) are 10, 100, 200, 500, 1 000, 2 000, 5 000, 10 000, 20 000, 50 000, 100 000 or
200 000 Imp./kWh depending on the version and are always secondary based.
6.4.2 Primary pulse output
Set transformer ratios effect the impulse output!
The pulse duration is fixed to 500 ms and the pulse value to 1 Imp./kWh.
Note: With a meter which has a configured primary pulse output the functions of the
pulse output do not just depend on the momentary power, but also on the set total
transformer factors. The transformer factors are to be selected by the user so that with a
maximum load of the meter a sufficiently large pulse period is guaranteed. The pulse
duration is set to 500 ms and cannot be changed.
Example:
Meter connection type: 4-wire
Unom = 3x230/400 V
Imax = 5 A
Output pulse value: 1 Imp./kWh with 500 ms pulse duration
Total transformer factors = U-factor x I-factor = e.g. 1000
Pmax = Unom x 15% x Imax
Pmax = 3x230 V x 1.15 x 5 A = 3.968 kWh
Pulse frequency = impulse value x transformer factors / 3600 s
Pulse frequency = 3.968 kWh x 1 Imp./kWh x 1000 / 3600 s
Pulse frequency = 1.102 Hz => every 907 ms a pulse
With a fixed pulse duration of 500 ms the pulse period is 407 ms
(907 ms-500 ms).

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6.4.3 Impulse-LED
If transformer ratios are set, they do not have any effect on the Impulse-LED. The LED
constant (RL) depends on the version and is always based on secondary values.
6.5 Interfaces
6.5.1 M-Bus-interface
The M-Bus interface is designed accord. to DIN EN 13757-2, -3. Via M-Bus the following
parameters can be transmitted:
−Manufacturer identification, as an option freely selectable
−Medium
−Primary- and secondary addresses M-Bus
−Energy values
−Instantaneous value PSum
−Error status
This data is emitted as a standard answer and can be displayed by customary tools such
as “Lorus”. Other parameters such as meter configuration or the edit data can only be
read out by manufacturer specific M-Bus telegrams. In order to carry out this function the
EMH DIZ-Tool must be installed on the readout device.
6.5.2 LON-interface
The LON-interface is designed according to DIN EN 14908-1, -2, -3, -4 and is based on
the specification “LONMARK”, which permits harmonisation of any LON-module in any
environment. Each LON-module has a world-wide unique address (Neuron-ID). This
address is specified during manufacturing and is imprinted on the meters nameplate.
The DIZ-LON-Bus supports open net-topologies.
The following data can be called up via the LON-interface:
−Energy values
−Instantaneous values PSum; single phases P, U and I
−Error status
−Transformer factors from U and I (To change this values is possible with
activated edit-mode for units without legalization only.)
Further functions and details can be found in the LON-description for the DIZ meter.
The LON-interface which is galvanically separated from the meter is found at the
auxiliary terminals 14 and 16.

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6.5.3 RS485-interface
The electrical interface RS485 is a symmetrical two wire interface (half duplex) and is
designed in accordance with TIA/EIA-485 / ITU-T V.11. The data protocol is the M-Bus
protocol. The following parameters can be transferred via the RS485 interface:
-Manufacturer identification, as an option freely selectable
-Medium
-Primary- and secondary addresses M-Bus
-Energy values
-Instantaneous values PSum Error status
-Error status
The RS485 interface which is galvanically separated from the meter is found at the
auxiliary terminals 14(A) and 16(B).
Features
Number of connected meters up to 32
Maximum cable length up to 1 000 m
Data transmission rate 300 ... 9600 baud
Signal according to
TIA/EIA-485 / ITU-T V.11 logical “1” -0.3 V to -6 V
logical “0”
+0.3 V to +6 V
Table 7: Specifications of the RS485-interface
RS485 Bus
Up to 32 devices can be operated by one RS485 Bus. Usually in a bus system the
first and last device should be terminated with a terminating resistor between
wire „A“ and „B“ in order to eliminate conduction reflections.
Bus structure:
Figure 6: System layout - RS485-two wire bus
Detail: Please note:
The terminating resistor may only be
installed at the first and last device.
Figure 7: Detail drawing - RS485 terminating resistor
RS485
14 16
A
B
RTERM= 120
Ω
Connection
terminals
Device 1 Device 2 Device 32
see detail
BA BA
. . .
RS485-two-wire bus
see detail
BAmax. 5 m
max. 1000 m

19
6.6 Battery
As an option, the DIZ meter can be equipped with an internal battery which allows a
readout of the meter when it is switched off. As long as the meter operates continuously
via the battery, the lifetime of the battery is at least 30 hours. With a de-energised read
out once a month (approx. 5 min) the lifetime is approx. 30 years.
In the battery operation mode, the display switches off automatically 20 seconds after the
last operation of the call-up button.
Note:
The battery used in the DIZ meter is a lithium battery with a very low self-discharge. If
the lithium batteries are stored or not used for a long time, a protective layer is formed on
the internal contacts which prevents self-discharge. If the battery is used again, the
protective layer must be degraded so that the total voltage is available. Thus it may be
necessary that the call-up button has to be pressed longer (≤30 seconds) to be able to
operate the meter again.
6.7 Path separator
With a direct connected DIZ meter there is the possibility to separate the voltage path
from the current path for test purposes. To do this, a special path separator is used
which can be obtained as an accessory from EMH.
Figure 8: Path separator
Path separator

20
7 Operation of the meter
The DIZ meter is operated via a mechanical button. With this button the display is
controlled and settings in the edit mode can be carried out. If the meter is equipped with
a battery, the standard menu can be shown in the display when the meter is switched off.
However, the test mode, address menu (with meters with electrical interface) and edit
menu are not available in this condition.
7.1 Display control
The following applies for operation of the meter via the call-up button:
- “short“ operation (toperation< 2 s) switches over to the next list value or menu option
(only switches when the button has been released)
- “long“ operation (2 s ≤toperation < 5 s) activates the momentary represented menu
option (switches only after 2 seconds and not when button has just been released)
- “longer” operation (toperation> 5 s) leads from every operation in the display mode to
the standard display (activates the selected menu option after 2 seconds, only after
5 seconds does it go into the standard index)
During normal operation the meter is in the standard mode. If the meter is in a different
condition, 5 minutes after the last operation of the button the display automatically
returns to the standard display.
Meters with LON-interface are sending their Neuron-ID-number automatically to the
LON-Software if the push-button is used. That simplifies the integration of the units into
the bus-system.
In order to guarantee undisturbed operation of the meter a continual checking
procedure of the
−checksum via the program code
−checksum via the parameter data
−checksum via the edit data
takes place during operation.
If an error occurs during this checking procedure, it is displayed as an error code
in the display:
Error code Explanation
00000001 Program code faulty
00000002 Parameter data faulty
00000003 Edit data faulty
Table 8: Error code description
If an error is shown in the display, the operation may be affected. Reset of the error code
can only take place at the factory.