WM Systems WM-E2S User manual

User manual
for WM-E2S ®
electricity metering modems
___________________________________________________
Rev: 2.7.5
2023-11-30

Document specifications
This documentation was made for presenting the installation and configuration
steps of the WM-E2S®(Itron®meter compatible) energy metering modem.
Document Version:
REV 2.75
Hardware Type/Version:
WM-E2S
®
modems
for the ITRON ACE6000, ACE8000, EM600 (E620 ), SL7000 electricity
meters
Hardware Version:
V 2.xx / V 3.xx / V 5.xx
Firmware Version:
for v2 version Telit Modem: V 2.4.43.11 / V 2.5.60 TLS
for v5 version Quectel Modem: V 5.1.58 / V 5.1.58 TLS
WM-E Term®config.
software version:
V 1.3.80
Pages:
36
Status:
Final
Created:
12-09-2019
Last Modified:
30-11-2023

Chapter 1. Introduction
The WM-E2S®modem is suitable for remote reading of electricity meters on LTE-
based cellular networks.
You can save money by using our modem, because there is no further need of manual
readout of the meter systems.
Wireless communication
The 4G LTE version has 2G fallback feature
(or 3G/2G fallback for request). Therefore, in
case of outage or inaccessibility of the 4G
network it is communicating further on the
2G (or 3G) network.
Some LTE Cat.M / Cat.NB versions also
having 2G “fallback” feature.
The modem can be also configured to GSM-CSD connection to initiate the CSData
calls.
The modem includes a removable SIM card and it has independent operation from
mobile service providers.
The modem has been designed to provide transparent data link from the meter to
the HES / central server.
The communication module is a part of the Smart Metering concept. The device
provides a SIM-card independent- and mobile operator independent solution.
Design and installation
This modem was especially developed for 3-phase Itrón®ACE6000, ACE8000, EM600
(E620) and SL7000 energy meters, which can be connected to the meter by its design
and its connection interface and can be installed into the meter enclosure’s terminal
cover. The modem can be snapped into the terminal cover of the meter.
The device can be also installed as an external modem –due an optional 35mm DIN-
rail adapter (order option) - which allows to fix/mount the device.
Operation properties, features
The 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 date readout from the meter takes place
in "PULL" mode, when the modem provides transparent communication between the
meter and the electricity provider's measurement center (HES).
Data is sent via the mobile network corresponding to the selected module.
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.
Connection options
The interface connection can be via:
-Serial RS232 port (RJ45)
or
-RS485 port (RJ45)
Power source
The device can be powered from DC power (8-16V DC) of the meter’s RJ45 cable
connection (10V DC).
Supercapacitor
The device can be equipped with internal supercapacitor part (order option), which
prevent the intermittent power cuts also help decrease power peaks. This enables to
keep the module in operation during small power outages.
After a few minutes of charging, the supercapacitor becomes capable of normal
operation and even frequent data transmission of a few minutes.
After the supercapacitor exhausting, it must be charged and the modem can be
automatically started after this and able to send data again.
The modem can also be ordered in a version without supercapacitor.
Configuration
The modem is configurable via TCP/UDP port remotely (or via local serial connection)
and operating on the wireless network by configuring the APN, username and
password (APN information is provided by your local mobile operator).
All settings can be configured with our WM-E Term®administration software. The
configuration is possible by one device or for a group of devices.

The WM-E Term®tool is password protected and user management is also possible.
The configuration tool requires Windows®platform to be executed, and it is available
in English, German, French, Spain, Czech and Hungarian language as well.
Firmware refresh
The WM-E Term®also provides safe firmware change for one or group of devices –by
locally or remotely.
Security
The product’s firmware is encrypted and prevented against to upload firmware or
data from other devices. The modem cannot be upgraded by any other 3rd party
firmware –its safe.
The control port of the modem is encrypted by AES - optional. TLS protocol firmware
is also available (request must be indicated before ordering).
The external flash- and the internal flash content of the device are encrypted.
Status and notification
The modem is continuously monitoring the mobile network and device
communication health, and can send status information (signal strength, QoS).
By the configured features, the device is able to send SMS alarm notification, Last
Gasp notification –depending on the used cellular network and mobile operators (if
the SMS notification is not disallowed on the network, then it can be used).
Certificate
According to the CE certification, the modem complies with the Radio Equipment
Directive - ReD –standard 2014/53/EU. The product is RoHS and CE certified.

Chapter 2. Connections
2.1 External outfit
2.2 Internal connections
2.2.1 Jumperable version
4
1a –Plastic transparent top cover
2 –PCB board
3 –Fixation holes
4 –Cover holders (loosen them to
let it open up the cover)
5 –FME or SMA antenna connector
(50 Ohm) –order option
6 –Status LEDs
7 –Hinge (of top cover)
1a
3
3
5
6
7
1b –Plastic transparent bottom cover part
(white)
8 –SIM card slot (push right & spin up)
9 –Internal antenna wire (with U.LF –FME or
SMA connection)
10 –RJ45 connector (data and DC power)
11 –Jumper board (for RS232 or RS485
mode selection –with jumpers - according
to the meter / cable connection)
12 –Supercapacitors (presence is order option)
13 –External connector (do not use!)
4
8
10
9
11
12
5
13
2
1b

2.2.2 Jumperless version
2.2.3 Modem without supercapacitor
1b –Plastic transparent bottom cover part
(white)
8 –SIM card slot (push left and spin up)
9 –Internal antenna wire (with U.LF –SMA /
FME connection)
10 –RJ45 connector (data and DC power)
11 –Jumper crossboard (for the proper meter
communication / compatible cable pinout)
12 –Supercapacitor parts
13 –External connector (do not use!)
14 –Holder of the top cover
(part of modem enclosure)
8
1
10
9
11
12
5
13
14
8
9
11
5
13
14
10

2.3 Jumper version –port mode choose
The modem can be ordered in a version with or without a jumper. The advantage of
the jumperable version is that the RS232 or RS485 mode can be free to set by the
requirements. While the jumpreless version provides a fixed / non-changeable
connection –which must be selected at ordering - according to the required meter
type - i.e. a fixed RS232 or RS485 connection should be choosen for the exact meter
type. (To choose the right model and pinout, contact our Sales!)
The jumperable version is delivered pre-jumpered, but it may be necessary to use
another method to connect the electric consumption meter. Therefore, the
RS232/RS485 data connection settings of the modem must be checked and, if
necessary, jumpered before use, by short-circuiting the corresponding pins of the
jumper panel (11) next to the RJ45 connector (using the help shown on the jumper
panel) - perform the jumpering.
RS232 mode selection
All the 4 jumpers are located on the inner
two lines of pins and the bottom line pins are
free (as it can be seen in the photo).
The modem is configured to RS232 mode.
Further data connection settings can be
initiated by the WM-E Term®software.
RS485 mode selection
All the 4 jumpers are located on the two
sides, in two lines of pins and the top line
pins are free. The jumpers must be used as it
is shown in the picture.
The modem is configured to RS485 mode.
Further data connection settings can be
initiated by the WM-E Term®software.
11
11

2.4 Jumperless (crossboard) version
The modem can be ordered in jumperless version
(crossboard soldered to the PCB, instead of a jumper
board). It has a pre-defined connection according to the
meter type. Therefore, there is no need for manual
jumpering of the device, all settings can be done by the
WM-E Term®configuration software directly –or even by
remotely.
We can provide crossboard version in the modem for the following meter types:
-ITRON®ACE6000, ACE8000 meters
-ITROL®EM600 (E620) meters
-ITROL®SL7000 meters
-Landis+Gyr®ZMG416 meters
-PME-PMI®meters
or we can make for any other meter (ask our sales)
Jumperless, crossboard version
11
11

Itron®meter - RS232 Connector pinout
Itron®meter –RS485 Connector pinout
RS485 interface description
Symmetric, serial and asynchron 4-wired cable connection. The master in 2-wire cable
mode, which can be configured by configuration software (provided) - Standard ISO-
8482. Maximal 31 meter can be connected.
The maximal data transmitting speed rate is 9 600 bps. Maximal wire length:
<=550 m, max. 9,600 bps, max. 31 meter
<=1000 m, max. 9,600 bps, max. 15 meter
Attention! External power surge protection is needed to apply in case of using
longer cabling. If the RS485 bus is not properly closed, this can disturb the
normal/proper operation.