WM Systems WM-E3S 4G CI User manual

WM-E3S 4G CI®modem
WM-E3S 4G CI R®modem
Installation Guide and
Modem Configuration
_______________________________________________
Rev: 1.5.1
2022-01-20

2
Document specifications
This documentation was made for the installation and configuration of the WM-
E3S 4G CI®(Customer Interface version) modem and the WM-E3S 4G CI R®
(Customer Interface and relay output version) modem.
Document Version:
REV 1.5.1
Hardware Type/Version:
WM-E3S 4G CI
®
,
WM-E3S 4G CI R
®
modem for electricity metering
Hardware Version:
V 4.41 + CI board
Firmware Version:
V 2.3.10
Pages:
22
Status:
Final
Created:
15-11-2016
Last Modified:
20-01-2022

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Chapter 1. Introduction
The WM-E3S 4G CI®is an integrated modem, which is suitable for remote reading
of electricity meters remotely, on the 4G LTE-based cellular network. The
communication module is a part of the Smart Metering concept.
This modem was especially developed for Elster®AS220, AS230, AS300, AS1440,
AS3000, AS3500 electricity meters, and can be connected to the meter by sliding
into the meters’ communication module slot and can be sealed.
Thus, the modem presents a compact solution, the dimensions of the meter will
not change if a modem if fitted or not. This solution offers the possibility of future
upgrade of the electricity meter with a communication module and is ideal for
installations where there is restricted assembling space. The modem is powered
internally by 230V AC power through the meter’s integrated mains connector.
The WM-E3S 4G®is modem is suitable for reading the meter’s actual and stored
consumption values, access the recorded event log, read the load profile data, and
read or modify the parameter set of the meter - remotely.
The modem can be accessed remotely through the cellular network (by the Telit®
module) and it is able to send data on the Internet by using an APN.
It has 2G fallback features, therefore in case of outage/inaccessibility of the 4G
network it is communicating further on the 2G network.
You can save money by using our modem, because there is no further need of
manual readout of the meter systems.
The Customer Interface (CI) version receives data from the meter in the scheduled
intervals, therefore can readout the meter registers over the parameters.
All over these, the „R” version (WM-E3S 4G CI R®modem) has relay output,
therefore the it can switch the meter to change the tarrif mode through its output
- due to the 1-4 configures Tariff-mode settings.

4
The modem can be used with push data transmission method, thus the modem
can initiate the communication with the AMR centre periodically at a pre-
programmed time interval or triggered by an alarm (power outage, cover removal,
reverse run, etc.)
The device can be configured through the serial port, but can be performed
through TCP connection remotely.

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Chapter 2. Connections
2.1 Interface connectors, internal connections (mainboard)
1
2
3
4
1 –Mains connector
2 –Push button
3 –Data connector (to the meter)
4 –SIM card socket (push-insert)
5 –Status LEDs
6 –SMA antenna connector
7 –U.FL antenna connector
5
8 –Telit LTE module
9 –Rechargeable battery (for spare
purposes)
10 –Power adapter unit
11 –RJ12 interface connector (6P6C)
12 –Internal data connector (for relay board
„R” version)
13 –Relay output (on expansion board) -
optional
6
7
8
9
10
12
11

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2.2 Interface connectors, internal connection (expansion board)
2.3 Assembled modem (mainboard + expansion board)
We deliver assembled product as it is show in the picture.
13
CI board
mainboard
(modem)

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2.4 Inserting a SIM card
Insert an activated SIM card into the push-push SIM card slot (4). The SIM card is
replaceable by pushing the inserted SIM card –if it is necessary.
2.5 Connecting the modem the AS3000, A3500 meter
Remove the Elster®AS3000, AS3500 meter’s communication module plastic case
by releasing the screw from the top middle part of the housing.
Inside the communication unit’s case mount the SMA-M antenna interface
connector (6) on the housing (fix it with the SMA connector’s screw).

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Snap the modem unit (mainboard + expansion board) into the communication
module terminal’s plastic enclosure by sliding into, through the guiding rails of the
case. Insert the modem into the right orientation into the slot. Check the 12-pin
data connector (3) position –according the next picture.
Push the modem into the terminal enclosure, until you’ll hear a click sound.

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The interface connector (3) is close to the SMA antenna connector (6) (right top
side on the picture).
At the center of the
modem you will found
two plastic hooks, which
helps you at the fixation
into the enclosure.
(If you want to remove
the modem board, push
these hooks carefully,
and you can free to remove the communication module from the terminal case.)
Now we can connect the communication module to the meter by sliding the
modem into the meter enclosure.
The communication interface (3) and the mains connectors (1) must be connected
to the connector pairs from the meter housing.
(Check the 12-pins data
connector and the
power connector (2-
pins) position in the
picture. You will find the
same connectors’
opposite part at the
bottom meter side,
which you have to
connect.
The meter’s terminal
module housing upper
right edge is a rounded
as a sign of the perfect
slide fit the adaptation to the meter.
1
3

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After assembling, attaching the modem terminal unit and turning on the meter,
the modem will be immediately powered on, and its operation is confirmed by the
LED signals.

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2.6 Connecting the modem to the AS220, AS230, AS300 meter
Disassemble the Elster®AS220, AS230, AS300 meter’s communication module
plastic case. Release the top screw
at the middle and take off the
upper modem unit case.
The modem can be inserted into
the transparent plastic enclosure
of the communication unit.
Inside the communication
module’s transparent plastic
case, mount the SMA-M
antenna to the antenna
connector (6) on the housing
(fix it with the SMA connector
screw).
The communication unit now
is ready to be attached to the meter by
fixing it on the meter housing.
The 12 pins communication interface (3)
and the mains connector (1) now plugs into
the meter.
After assembly and turning the meter on
the communication module is ready for
operation. The LED signals will sign the
operation status of the communication
module.

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2.7 Antenna connection
For proper operation of the communication module it is necessary to have
appropriate signal strength.
In places where the signal strength is strong it is possible to use internal antenna,
for areas with poor reception mount an external antenna (50 Ohm SMA-M
connected) to the antenna connector (6) of the device, which you can place inside
even inside the meter enclusre (under the plastic housing).
2.8 using the RJ12 connection
Connect the proper cable to the modem’s RJ12 communication interface (11). The
listed registers can be readout on the cable (see Chapter 4).
The data is always active on the P1 interface, furthermore you can readout other
registers from the meters.
The RJ12 connection pinout can be seen in the following table.*
*The Pin nr. 2 inactvice in case of the relay
output version modem!
2.9 Relay connection
You can found the relay output (13)on the
modem’s optional expansion. Then, by
using the Customer Interface, the client
can receive data in cyclic intervals from the
meter, which is switching the operation by
the current tarrif settings –due to the
modem’s relay output switching.

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Chapter 3. Modem Installation Guide
The WM-E3S 4G CI®communication module unit can be configured by the a WM-
E Term®v1.3.19T or newer version or the DM Set®/ AlphaSet®software which is also
suitable for setup the electricity meter through a serial connection.
The WM-E Term®tool is suitable over the communication settings to readout the
P1 Customer interface registers and to perform Tariff mode settings. You can
found a document about the application tool’s settings on our website.
Here we show the DM-Set®software settings, which is used by the utility
companies. Follow the next steps for configuring the CM to the meter.
3.1 Connection
1. The DM Set®software must be installed to a Microsoft Windows®capable
installed PC computer.
2. Connect properly the optical head to the meter and to the USB port of the
computer.
3. Configure the modem through the optical head.
4. Start the DM Set®application for the configuration (version 2.14 or newer is
necessary).
5. After launching the application, choose the Extras menu and Set modem
series option.
6. Then choose AMXXX option then click on the OK.
7. Choose Extras menu and Options, then choose the proper serial port which
is used for the connectivity of the optical head. Let’s choose the 8N1 data
format and 115 200 baud speed rate for the data transfer.
8. When you are configuring the modem first time, you can read out the version
information only.
Load the sample config file provided (go to step 9.), or request it from your
supplier.
IF YOU HAVE ALREADY LOADED A VALID CONFIGURATION FILE TO THE
MODEM, You can use the Read Settings for readout the parameters of the
meter (then edit and save the parameter settings with the Modify / Modem
settings).

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9. Or it’s also possible to open a pre-defined configuration file with the Open
File menu (after opening the file you can edit the configuration)
10. Choose the Modify / Modem Settings option from the menu and give the
APN server name to configure the access point name for the secure logon.
(Then the modem will be communicating on the transparent data port
number 9000, by default.)
11. GPRS Always ON must be checked on.
12. You have to fill the password regarding the SIM Card settings (get
information from Your Mobile Operator)
Settings of modem unit in the DM Set® application
13. In case of parameter modification after the changes. You have to save the
changed parameter values into the configuration file by selecting the File /
Save menu.
14. After the configuration the modem able to connect to the GPRS network.
15. The modem will be assessable through the meter.

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3.2 Testing the readout of the meter
The readout and connection can be tested with AlphaSet®application. Let’s
AlphaSet Reading and Configuration Tool Instruction Manual documentation.
“alphaset_user_manual_GBR.doc”)
3.3. Status LED signals
* LED 1 flashing faster if registered on the 3G wireless network
** Presence of LED 4, 5 is optional.
3.4. Push operation method
The complete readout and data sending mechanism to the centre and the other
direction for the configuration and maintenance tasks can be realized on the
defined paths.
The modem is not operate continously on the GPRS network.
Therefore, there is an another option and meter data sending mode to initiate a
remote readout automatically in the pre-defined intervals. Anyway, it is also
possible to start the data sending in case of different events (e.g. removal of meter
cover, incoming SMS message from the centre).
In this situation the modem is connected to the mobile data network only during

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the time of the data transmission.
The devices needs to be connected to GSM network and ready to connect to GPRS,
but without active IP connection.
Features:
- Data Push - starting at predefined times
The Data Push method triggers FTP file upload, plain text or encrypted.
The unique filename and the file is generated automatically.
The file is always has two parts, first the standard register reading,
then the event log from last 31 days. (the period may extended automatically
if the date of the event is earlier)
The readings shown as standard IEC format, including some ASCII control
characters
like STX ETX, etc. also.
The ftp is set to passive mode.
- Alarm Push - starting when new event can be read from meter
Alarm Push method triggers TCP sending of a DLMS WPDU contains the IP
address,
listening port number for transparent service, and the meter ID.
- Triggering with SMS
GPRS connection can be activated remotely with a defined SMS from any call
number.
The SMS text must be left empty.
After the SMS received, the modem will connect to IP network, and will be
accessible as a IP server for a time period defined in the config file.
Example config file will be provided with a 30 minute setting.

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3.5. Configuration of the push operation mode
Configuration can be loaded with DM-Set, but there is no dedicated menu item for
these settings. The configuration file must be edited manually.
The following DM-Set configuration file items are necessary to configure this mode.
- Data Push setting (using DMSet):
•GPRS always ON: unchecked
•ping IP-address host: host, user, password:
ftp://username:password@host/path using IRA(ITU T.50) character set
Some parameters cannot be set ont he DMSet GUI, these must be defined by
direct editing the config file in a text editor.
- Config file keywords:
•smp.always_on = 0
•smp.connect_on_timer = 1
•conn.ping_host = ftp://username:password@host/path
Example: ftp://device001:[email protected]/upload
There can be defined a port number in the ftp upload URL. If the ftp port other
than 21, eg. 1021 the port number must be defined.
Example: ftp://username:password@host:1021/path
ftp://device001:[email protected]:1021/upload
•smp.connect_interval = 28800
Connect interval counted in seconds.
•smp.connect_start = YYYYMMDDWWHHmmSS

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Y = Years, M = Months, D = Days, W = Day of week, where 01 is Monday and
07 Sunday.
H = Hours, m = Minutes, S = Seconds, wildcards FF are allowed.
At the datetime (connet_start) the wildcard=FF, upcase only!
For example: smp.connect_start = FFFFFFFFFFFF0000 which means send
once in every hour.
When the time is between 01:00:00 AM to 02:00:00 AM UTC, the scheduling
maybe skipped on the start of the daylight savings, and run twice at the
end.
•csd.password = <max. 16 characters>
•conn.apn_name = wm2m
Where apn name must be maximal 50 char long.
•conn.apn_user =
•conn.apn_pass =
Where apn password must be maximal 30 char long.
•smp.connect_interval in seconds, max 0xFFFFFFFF
Meter date format setting must be set in config file for proper operation:
emeter.date_format = YYMMDD
or
emeter.date_format = DD-MM-YY
for example.

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- Encryption:
The file can be encripted with AES-128 CBC method.
The 128-bit key must be added to the config file.
If the parameter is empty or the length is wrong, no encryption will be used.
dlms.lls_secret = 00112233445566778899AABBCCDDEEFF
- Triggering with SMS:
•trigger: SMS triggered (Empty SMS)
The SMS length must be 0. The encoding can be 7-bit or 8-bit.
The device will be registered to IP network for a predefined time, if the GPRS
always on setting is unchecked (smp.always_on = 0) Setting of time period:
- Config file keywords:
•smp.disconnect_delay = 1800
Above an example can be found, where the 1800 seconds value means that
in 30 minutes online time.
- Event Push settings:
The smp.disconnect_delay setting also applies to Event trigger.
The device will remain online for this time after sending the event notification.
- Config file keywords:
ei_client.addr = <destination IPV4 address>
ei_client.port = <destination port number>
example:
ei_client.addr = 192.168.0.1
ei_client.port = 4000

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In these examples, the IP address is 192.168.0.1 and the port number is 4000.
You can change these values with the required values.
The APN name, user and password parameters are also required for push mode
operation.
The device will connect to the defined TCP port.
Event Push data format: DLMS WPDU contains the IP address, listening port
number for transparent service, and the meter ID.
TCP data, binary, 29-byte:
0001000100010015FF0203060ACAB60F12232809083035323035383431
Structure:
DLMS WPDU HEADER, 8-byte
Version = 1
srcPort = 1
dstPort = 1
Payload Length = 21
AXDR encoded data packet:
<Data>
<Structure Qty="0003" >
<DoubleLongUnsigned Value="0ACAB60F" /> IP address
<LongUnsigned Value="0FA0" /> port number, that the device listening
on
<OctetString Value="3035323035383431" /> meter ID
</Structure>
</Data>