WM Systems Universal Industrial RS485 Modem User manual

User manual
for Universal Industrial RS485 Modem®
______________________________________________
Rev: 2.70
2020-05-11

Document specifications
This documentation was made for presenting the installation and configuration steps of the
Universal Industrial RS485®modem.
Document Version:
REV 2.70
Hardware Type/Version:
Universal Industrial RS485
®
modem
Hardware Version:
V 4.60
Firmware Version:
V 2.4.25.7
WM-E Term®config.
software version:
V 1.3.52
Pages:
52
Status:
Final
Created:
10-05-2021
Last Modified:
11-05-2021

Table of Contents
Chapter 1. Introduction............................................................................. 5
Chapter 2. Connectors, interfaces.............................................................. 7
Chapter 3. Installation .............................................................................. 8
3.1 Installation steps ................................................................................................................................ 8
3.2 Antenna connection ........................................................................................................................... 9
3.3 Operation LEDs ................................................................................................................................. 10
3.4 RS485 connector pinout ................................................................................................................... 11
3.5 Configuring from CSD connection ................................................................................................... 11
Chapter 4. Configuration ..........................................................................12
4.1 Configuration ................................................................................................................................... 12
4.2 Configuring the modem by WM-E Term ........................................................................................... 12
4.3 Setup the connection ....................................................................................................................... 14
4.4 Connect to the modem ..................................................................................................................... 16
4.5 Choose a parameter group ............................................................................................................... 18
4.6 Modify the settiongs ........................................................................................................................ 20
Chapter 5. Parameter settings ..................................................................22
5.1 APN settings...................................................................................................................................... 22
5.2 Wireless settings............................................................................................................................... 23
5.3 Mobile network settings ................................................................................................................... 25
5.4 Watchdog settings ............................................................................................................................ 27
5.5 RS485 interface settings .................................................................................................................. 29
5.6 Device Manager settings .................................................................................................................. 30
5.7 Send the configuration tot he modem ............................................................................................. 31
Chapter 6. Further features ......................................................................33
6.1 Device information............................................................................................................................ 33
6.2 Saving the parameters...................................................................................................................... 34
6.3 Loading the saved parameters ......................................................................................................... 34
6.4 Mass configuration (for multiple devices) ....................................................................................... 35

6.5 Single firmware update ................................................................................................................... 37
6.6 Mass firmware update (multiply uploads) ....................................................................................... 38
6.7 Status Read ....................................................................................................................................... 40
6.8 User management............................................................................................................................. 41
6.9 Event log ........................................................................................................................................... 42
6.10 Check modem communication ...................................................................................................... 43
6.11 Ping host ........................................................................................................................................ 43
6.12 AT commands ................................................................................................................................. 44
6.13 Print................................................................................................................................................. 45
6.14 General settings.............................................................................................................................. 45
6.15 Password change ............................................................................................................................ 46
6.16 Configuring the LED settings ......................................................................................................... 47
Chapter 7. Support ..................................................................................49
Chapter 8. Legal notice ............................................................................50
Chapter 9. Legend ....................................................................................51

Chapter 1. Introduction
The modem is easily mountable on a DIN-rail and operates from a 230V external power supply.
The case design and interfaces meet the industry standards and the strict requirements of the
large meter manufacturers. This device allows us to connect all kinds of industrial measurement
systems with a central server by creating a transparent data link between a local system and an
IP address or HES.
Wireless communication
The modem supports the 2G, 3G, 4G, LTE Cat.M, LTE Cat.NB networks.
It supports the multi-operator SIM and the roaming feature, and it is compatible with SIM-Toolkit.
The modem has been designed to provide transparent data link from the meter to the server.
It 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 modem can be configured to GSM-CSD connection also - e.g. when using a 2G module,
receive the CSD calls.
The modem is independent of the mobile service provider and includes a removable SIM card.
Your device supports multi-operator SIM cards and roaming.
Design and installation
This modem can be installed and connected close to the measurement system - as an external
modem –due to the DIN rail-adapter which allows to fix/mount the device.
Data connection
It uses RS485 data connection, transparent link and RS232 serial port connection for
configuration.
- RS232 port (DSUB connector)
- RS485 port (2- or 4-pin ferrule connector)
Operational characteristics
The device can be accessed remotely via the mobile network and is capable of sending data over
the Internet using an APN.

The modem is thus suitable for transmitting the incoming data of the connected device
transparently through the wireless network.
Power source and power outage
The device can be powered from the meter’s mains connection (by general 100V-240V AC
voltage).
The modem can be connected through the following modes:
a.) the meter is connected to the 57.7/100V AC power network: the modem must be
connected to phase voltage (100V, L1..L2 or L2..L3 or L1..L3)
b.) the meter is connected to the 230/400V AC power network: the modem must be connected
to the line voltage (230V, L1..N or L2..N or L3..N)
In case of the need of using external DC power, the modem can be orderd in DC-voltage version.
Configuration and firmware refresh
The modem can be configured locally via RS232 port, remotely with a CSData call (only if you
use a setting that also uses a 2G network!) Or via a mobile internet (TCP) connection, and its
firmware can be updated. The modem is
configurable via TCP 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
administration tool (the WM-E Term®software), but
also API available so our partner can easily adapt their current administration environment.
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 run. It is available in English and some
local languages as well (as French, Spanish, Czech, etc.).
Certification
The modem is accomplishing with CE standard (Radio Equipment Directive (2014/53/EU)) and
safety directives (EN 60950-1) and RoHS declaration and has CE certification.

Chapter 2. Connectors, interfaces
1
2
4
4
3
5
6
7
8
1 –Mains connector (pigtail connector, for the AC power of the meter)
2 –RS232 connector (DSUB9 - optional)
3 –RS485 connector (2-pin or 4-pin - order option, wire with sleeve)
4 –Antenna connector (SMA-M, 50 Ohm)
5 –SIM card slot (push-insert)
6 –Status LEDs
7 –Fixation screw of top modem enclosure
8 –DIN-rail adapter to fixate/mount to wall

Chapter 3. Installation
3.1 Installation steps
Step #1: Ensure that the device is not
powered on, remove the AC connector (1).
Step #2 : Insert a replaceable and active
SIM card (with APN) into the SIM-holder (5)
- the chip looks down, and the cutted edge
of the SIM looks to the modem. Push the
SIM until it will b efastened (you will hear a
click sound).
(If necessary, the SIM card can be easily removed by pressing the card again, causing the card
to be ejected from tray.)
Step #3: Mount external magnetic base antenna (12) corresponding to the communication to the
antenna connector (4).
Step #4 : Connect the modem to your computer with the RS232 cable (2) and an RS232-USB
converter for the configuration. Note that the modem can be programmed only through
RS232 connection!
Step #5: Connect the modem's AC power connector (1) - wire socket connection or "pigtail" to
the external power supply (to a 100-230V AC input).
Step #6: Configure the modem with the WM-E Term®software.
Step #7: After completing the configuration, remove the R232 cable (2) from the PC.
Step #8: Disconnect the modem AC power connector (1) from the meter (or power source). The
modem will be shutting down.
5

Step #9: Make data connection between the modem and the RS485 interface (3) –use the 2 or
4 wires of the port.
Step #10: Install the modem close to the
measurement unit. Attach the modem
onto a 35mm DIN rail (K) using a DIN rail
adapter (9) to the bottom side of the
modem’s enclosure to fasten the
modem.)
Step #11: Connect the modem's AC
power connector (1) - wire socket
connection or "pigtail" connector
depending on the version - to the meter's
power input (for 100-230V AC).
Then the modem starts automatically, which is also indicated by LED flashes. You can now set
the modem parameters.
Then the modem will be power supplied by the meter and the modem will start its operation and
the LED signals are signing the current activity.
3.2 Antenna connection
The modem requires enough signal strength of the cellular network and LTE or similar antenna
for the proper operation and good communication.
Where the signal strength of the cellular network is sufficienty, there an internal antenna may be
enough to use.
However, in places where the signal strength is low or poor, you should use an external antenna
(50 Ohm, SMA connector), which can be mounted to the modem –you can place it even inside
of the top cover of the meter.
8
K

3.3 Operation LEDs
The LED numbering is the same as the LED labels on the modem panel: from left to right in
order: LED1 (blue, left), LED3 (green, center), LED2 (red, right).
Factory default LED signals:
LED identifier
Events
LED 1
GSM / GPRS status
•If there is a SIM and PIN code ok, the LED will turn on
•If there is no SIM or the SIM PIN is incorrect, the LED
flashes every 1 second.
•If there is no SIM, the LED flashes every 1 second.
•• RSSI flashes the LED according to the field strength value
(1 flash lasts for 1 second, followed by a pause)
oRSSI <= -98 →1 flashing
oRSSI> -98 and <= -83 →2 flashing
oRSSI> -83 and <= -68 →3 flashes
oRSSI> -68 →4 flashes
LED 3
SIM status / SIM failure or
PIN failure
•During network registration: led is active
•During network search: blinking once per second
•When connected to the network and the IP connection is okay:
blinking twice per second
LED 3
LED 1
LED 2

•When the mobile network access technology was changed: quick
flashing will be relied:
o2G → 2 flashing per second
o3G → 3 flashing per second
o4G → 4 flashing per second
•If no network is detected: the led will be blank
LED 2
E-meter status
(Communication status)
•During the transparent meter communication: twice per
second .
•At finish of the transparent communication: led is blank .
Important!
During firmware upload, the LEDs indicate normal operation - there is no distinct indication
during the FW update. After installing the FW, the three LEDs light up for 5 seconds and
then all three light up. The modem will then restart and use the new firmware. Then each
LED will continue to flash according to the listed states.
3.4 RS485 connector pinout
3.5 Configuring from CSD connection
If the modem restarts due to an incorrect configuration, it is possible to access it with a CSD call.
Its operation can be fine-tuned in the WM-E Term software with a value that can be specified in
the PDP connection delay field in the APN parameter group.
For more information, see Chapter 4 and Chapter 5 .
Color
Alternative colour
Sign
Meaning
Meter RS485 port connector side
White
Black
RX+
Receiving data
Meter_TX+
Brown
Red
RX-
Receiving data
Meter_TX-
Yellow
Yellow
TX-
Sending data
Meter_RX-
Green
Green
TX+
Sending data
Meter_RX+

Chapter 4. Modem Configuration
4.1 Configuration
The modem must be configured by the WM-E Term® software by configuring its parameters
which must be performed before the normal operation and usage. Over the parameter settings
of the modem and communication, etc. you can also test the modem communication by the
configuration program.
Note that the modem can be configured through RS232 connection only!
For the operation of the modem cellular network communication and SIM card settings (such as
APN, password, and account) are required.
In addition, be sure to review the connection settings (RS232, RS485) also and save the settigns
in the WM-E Term software. In addition, you must send the configuration to the modem.
4.2 Configuring the modem by WM-E Term
®
1. The configuration software can be used on Microsoft®Windows®7 / 8 / 10 operating systems.
2. Microsoft®.Net Framework v4 must be installed on your computer. In case of missing this
component, you have to install it after having downloaded it from the manufacturer’s website:
https://www.microsoft.com/en-us/download/details.aspx?id=30653
3. You have to own administrator privileges for the directory, where running the program.
4. Download WM-E Term®to your computer from the following location using a browser:
https://www.m2mserver.com/m2m-downloads/WM-ETerm_V1_3_51.zip
5. You can also use a sample template configuration file –if you want.
https://www.m2mserver.com/m2m-downloads/ INDUSTRIAL_UNIVERSAL_RS485_MODEM.cfg
6. Unpack the .zip file into a directory and execute the WM-ETerm.exe file and the following
application screen appears.

7. Enter the login data to enter into the configuration software.
Default Username: Admin Default Password: 12345678
8. Select the WM-E1S modem type and push the Select button there.

In the program window, you will find
icons and menu items for performing
settings, operation.
On the left side of the screen, the
navigation buttons will help you to connect
and check the communication.
At the bottom of the screen, on the lef hand side, you can connect with a pre-configured profile
to the modem (by selection).
4.3 Setup the connection
1. Make serial RS232 connection between the modem and your computer.
2. On the left-side of the screen click on the Connection type and choose the Serial interface.
3. Add a name for the profile at the New connection field.

4. Push the Create button, and in the next window the connection settings will appear.
5. In the next connection window you can define the connection profile parameters.
It is obligatory to setup the connection parameters: as COM port according to the available
serial/USB port, the dataspeed (Baud rate), and the Data format (e.g. 8,N,1).
6. You can Switch baud rate during the firmware by enabling the Switch enable option and
choosing a baud rate from the list. This will be valid for the fw update period.
7. When you have finished, click on the Save button to save the connection profile.
For remote reconfiguration of the modem –via cellular network –you have to use TCP/IP profile:
1. You need to know the IP address of the SIM card for connection and the pre-configured port
number to setup the TCP/IP settings.
2. On the left-side of the screen click on the Connection type and choose the TCP/IP
interface.

3. Add a name for the profile at the New connection field.
4. Push the Create button and in the next window the connection settings will appear –similar
to what was described at the serial connection.
5. Define the IP address o the connected SIM card and the Port for the connection.
6. Push then the Save button to save the profile settings.
4.4 Connect to the modem
You already made the connection profile, now you have to choose a connection profile manually
at the bottom of the screen to connect to the modem before any operation!

Once the connection profile has been chosen below, choose the Parameters Read
icon.
Then the device will be connected and the configured settings will be loaded from the modem to
the WM-E Term software.
The progress will be signed by the indicator bar on the righ-bottom side of the screen.
After loading the parameters at the top of the screen, them you will see the readout parameters
and its values.
Then confirm the parameter readout success by the OK button.

4.5 Choose a parameter group
At the top of the settings, the available parameter types and its listed parameters can be seen.
This is where you can choose another
Parameter group by its button.
The available parameter groups depend on
the currently used metering modem model
and the used firmware.
Choosable parameter groups:
•AMM (IEC) – NOT AVAILABLE FOR THIS MODEM!
•AMM/DLMS – NOT AVAILABLE FOR THIS MODEM!
•APN –APN zone settings (for the SIM card)
•M2M –GPRS connection settings
•Watchdog –GPRS Watchdog settings

•Mobile Network –Mobile network settings
•Calendar – NOT AVAILABLE FOR THIS MODEM!
•Standard meter interface –Date format, identifiers, LED operation settings
•Transp./NTA – NOT AVAILABLE FOR THIS MODEM!
•RS485 meter interface –for RS485 meter connection settings
•Secondary transparent settings – NOT AVAILABLE FOR THIS MODEM!
•Device Manager – optional: for configuring the Device Manager® server connection
for monitoring and maintaining the modems remotely
•M-Bus – NOT AVAILABLE FOR THIS MODEM!
•P1 Customer Interface – NOT AVAILABLE FOR THIS MODEM!
•Network Protocols - NOT AVAILABLE FOR THIS MODEM!
•Ethernet –NOT AVAILABLE FOR THIS MODEM!
By pushing the Parameter reads icon (menu item) you can repeat the whole readout,
anytime –when it is necessary or you want to test the modified settings (later).

4.6 Modify the settings
To edit the parameters, push the Edit values button to the right from the Parameter group.
Then you will then see the parameter values listed, and you can modify them. (If you want to
change another Parameter group, you have to push the Edit values button again.)
When you have modified the required parameters, push the OK button to record the settings.
Note that the settings will NOT be saved automatically or sent to the modem!
To send/write parameters to the modem, you have to push the Parameters write icon.
Then the parameter values will then be sent to the modem.
The right bottom progress indicator bar will show the percentage of the writing.