Amit DM-MB2ET/A User manual

dm-mb2eta_g_en_102
DM-MB2ET/A
Communication converter
M-Bus to Ethernet
Operation manual
Version 1.02

DM-MB2ET/A
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Copyright (c) 2017, AMiT, spol. s r. o.
Producer: AMiT, spol. s r. o.
Naskové 1100/3, 150 00 Praha
www.amitomation.com
Technical support: [email protected]

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Contents History of revisions.........................................................................................4
Related documentation...................................................................................4
1Introduction..........................................................................................5
2Technical parameters..........................................................................6
2.1 Dimensions.....................................................................................................7
2.2 Recommended drawing symbol .....................................................................8
3Conformity assessment ......................................................................9
3.1 Other tests....................................................................................................10
4Power supply......................................................................................11
5Communication interfaces................................................................13
5.1 M-Bus interface ............................................................................................13
5.2 Ethernet interface.........................................................................................14
6Mounting.............................................................................................17
6.1 Installation rules............................................................................................17
7Converter configuration....................................................................18
7.1 Service button...............................................................................................18
7.2 LED RUN......................................................................................................18
7.3 Service mode................................................................................................19
8Factory settings .................................................................................20
Ethernet factory settings...............................................................................20
M-Bus factory settings..................................................................................20
8.1 Factory settings restoring .............................................................................20
9Ordering information and Package contents..................................21
9.1 Package contents.........................................................................................21
10 Maintenance .......................................................................................22
11 Waste disposal...................................................................................23

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History of revisions
Document name: dm-mb2eta_g_en_102.pdf
Revision
Date
Author of change
Changes
100
05. 04. 2011
Csörgő V.
New document.
101
23. 06. 2011
Csörgő V.
Correction of operating range -25 °C to 50 °C.
102
30. 05. 2017
Říha Z.
Change in chapter 1, 2, added figures, change of manual
structure.
Related documentation
1. DM-MB2ET/A –Software in converter DM-MB2ET/A –Programmers guide
file: dm-mb2eta_ms_en_xxx.pdf
2. Application Note AP0010 –Communication in M-Bus Network
file: ap0010_en_xx.pdf
3. Application Note AP0008 –Communication in MODBUS Network
file: ap0008_en_xx.pdf
4. Application Note AP0037 –Principles of Ethernet network usage
file: ap0037_en_xx.pdf

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1 Introduction
DM-MB2ET/A is M-Bus communication converter to Ethernet.
MASTER-type M-Bus interface, up to 3 SLAVE-type units
Ethernet interface 10/100 Mbps (communication MODBUS/TCP, APE,
Direct)
Power supply +24 V DC or PoE
Mounting on a rail DIN 35 mm
The communication MODBUS/TCP allows up to 6 clients to be connected.
Basic
features
Note

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2 Technical parameters
CPU
STM32F107VCT6
FLASH
256 KB
SRAM
64 KB
Quantity
1
Communication speed
10/100 Mbps
Galvanic isolation
Yes
Insulation strength
500 V AC / 1 minute 1)
Operation indication
LED on mainboard
Connection point
Connector RJ45, according to IEEE802.3
1) Insulation must not be used for dangerous voltage separation.
Quantity
1
Interface type
MASTER
Transmission speed
150 bps to 9600 bps
Overvoltage protection
Transil 600 W
Interface short-circuits protection
Resettable thermal fuse 100 mA
M-bus interface power supply
From internal power supply
Galvanic isolation
No
Number of connectable units
1 to 3, SLAVE-type
Operation indication
LED on mainboard
Connection point
WAGO 231-302/102-000
Wire cross section
0.08 mm2to 2.5 mm2
Nominal power supply voltage
24 V DC
Power supply voltage range
19.2 V DC to 28.8 V DC
Maximum power consumption
210 mA at 24 V DC
Power dissipation (typical)
2.5 W
Galvanic isolation
Yes 2)
Insulation strength
500 V AC / 1 minute 3)
Connection point
WAGO 231-302/102-000
Wire cross section
0.75 mm2to 2.5 mm2
Power supply system
Device must not be power supplied from DC
distribution network of building 4)
2) Galvanically isolated from the internal electronics.
3) Insulation must not be used for dangerous voltage separation.
4) For detailed information, see the chapter “6.1 Installation rules” paragraph
“Power supply”.
Nominal power supply voltage
48 V DC
Power supply voltage range
43.2 V DC to 52.8 V DC
Maximum power consumption
70 mA at 48 V DC
Galvanic isolation
Yes 5)
Insulation strength
500 V AC / 1 minute 6)
Connection point
Connector RJ45 (for Ethernet connection)
5) Galvanically isolated from the internal electronics.
6) Isolation must not be used for dangerous voltage separation.
Communication
CPU
Ethernet
Note
M-Bus
Power supply
24 V DC
Note
Power supply
PoE
Note

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Mechanical design
Plastic box
Mounting
On DIN rail 35 mm
Ingress protection rate
IP20
Weight –netto
–brutto
0.16 kg ±5 %
0.22 kg ±5 %
Dimensions (w × h × d)
(71 × 90 × 73) mm
Operating temperature range
-25 °C to 50 °C
Storage temperature range
-25 °C to 50 °C
Maximum ambient humidity
< 95 % non-condensing
2.1 Dimensions
PWR
21
MBUS MBUS
RUN
DM-MB2ET/A
ETHERNET
4
3
GND+24V
90
71 73
Fig. 1 –DM-MB2ET/A dimensions
Mechanics
Temperatures
Others

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2.2 Recommended drawing symbol
Following drawing symbol is recommended for the communication converter
DM-MB2ET/A. Only part of it will be visible in following examples.
M-Bus
4
DM-MB2ET/A
1
2
MBUS
MBUS
+24V
Ethernet
PWR
GND
3
Ethernet s PoE
RJ45
Fig. 2 –Recommended drawing symbol for DM-MB2ET/A

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3 Conformity assessment
The equipment meets the requirements of NV616/2006 Czech Government
Decree. The compliance assessment with NV616/2006 has been performed in
accordance with harmonized standard EN 61326-1:2013.
Tested in accordance
with standard
Type of test
Class
EN 55011:2009
Industrial, scientific and medical
equipment –Radio-frequency
disturbance characteristics –Limits and
methods of measurement
Complies,
A 7)
EN 61000-4-2:2009
Electromagnetic compatibility (EMC) –
Part 4-2: Testing and measurement
techniques –Indirect electrostatic
discharge immunity test, contact
discharge
Complies
(±8 kV)
EN 61000-4-2:2009
Electromagnetic compatibility (EMC) –
Part 4-2: Testing and measurement
techniques –Indirect electrostatic
discharge immunity test, air discharge
Complies
(±16 kV)
EN 61000-4-3:2006
Electromagnetic compatibility (EMC) –
Part 4-3: Testing and measurement
techniques –Radiated, radio-frequency,
electromagnetic field immunity test
80 MHz to 1 GHz
Complies
(10 V/m)
EN 61000-4-3:2006
Electromagnetic compatibility (EMC) –
Part 4-3: Testing and measurement
techniques –Radiated, radio-frequency,
electromagnetic field immunity test
1.4 GHz to 2 GHz
Complies
(10 V/m)
EN 61000-4-3:2006
Electromagnetic compatibility (EMC) –
Part 4-3: Testing and measurement
techniques –Radiated, radio-frequency,
electromagnetic field immunity test
2 GHz to 1.7 GHz
Complies
(3 V/m)
EN 61000-4-4:2012
Electromagnetic compatibility (EMC) –
Part 4-4: Testing and measurement
techniques –Electrical fast
transient/burst immunity test, power
supply, Ethernet, M-Bus
Complies
(4 kV)
EN 61000-4-5:2006
Electromagnetic compatibility (EMC) –
Part 4-5: Testing and measurement
techniques –Surge immunity test, power
supply, M-Bus shielding
Complies
(3 kV)
EN 61000-4-5:2006
Electromagnetic compatibility (EMC) –
Part 4-5: Testing and measurement
techniques –Surge immunity test,
Ethernet shielding
Complies
(4 kV)

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Tested in accordance
with standard
Type of test
Class
EN 61000-4-6:2009
Electromagnetic compatibility (EMC) –
Part 4-6: Testing and measurement
techniques –Immunity to conducted
disturbances, induced by radio-frequency
fields
Complies
(10 V)
7) This is a class A device. This device can cause some radio disturbances in
the internal environment. In such case, the user can be requested to take
the appropriate measures.
3.1 Other tests
Tested in accordance
with standard
Type of test
Classification
EN 60068-2-1:2007
Environmental testing –Part 2-1: Tests –
Test A: Cold
Complies
EN 60068-2-2:2007
Environmental testing –Part 2-2: Tests –
Test B: Dry heat
Complies
EN 61000-4-29:2000
Electromagnetic compatibility (EMC) –
Part 4-29: Testing and measurement
techniques –Voltage dips, short
interruptions and voltage variations on
DC input power port –Immunity test
Complies
Note