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Ewon Flexy 205

The second generation of this industrial router for remote access and the collection, storage and visualisation of PLC data through the Internet and the unique Ewon VPN Talk2M cloud service. The Flexy 205 connects to the Internet via WAN port, WiFi, 3G or 4G (LTE). It features 2 slots for which you can order FLEXY extension cards.

Part no:

591 €

591 €

Availability: In Stock in Liberec


The Ewon Flexy 205 is a follow-up to the Flexy 201/202/203 series. Its improved features and integrated PLC drivers make it a unique, all-round industrial M2M router and IoT data gateway. The Flexy 205 contains two slots for Flexy extension cards, which make this router even more versatile.

Base Module

The Flexy 205 base module is a plastic DIN-mount module with two extension card slots and four RJ45 Ethernet ports. The ports can be assigned either LAN or WAN functionality, with at least one of the ports always being WAN port.

Flexy 205 - Datové služby

  1. LED diodes showing the router's operational status
  2. RESET button for restoring the router's settings to factory settings
  3. SD card slot
  4. Terminal block for power supply and external inputs and outputs
  5. Two slots for Flexy extension cards
  6. 4x 10/100 Mb Ethernet ports – LAN and WAN (configurable)

Secure Data Transfer

security_reliability.png?sfvrsn=a7f483d6The Flexy 205 connects to the Talk2M service via a secure, encrypted VPN tunnel based on the Open VPN technology. Communication between the remote user and the Flexy 205 is fully encrypted using the SSL/TLS protocol. In addition, all users and Flexy 205 units are authenticated using x509 SSL certificates. This kind of secure connection is ideal for remote access to control systems and remote data collection.

Integrated PLC Drivers


The main advantage of the Flexy 205 that sets it apart from the Ewon COSY and other routers and that makes it stand out is its integrated communication drivers for the most popular control systems and PLCs, such as SIEMENS, Rockwell, Mitsubishi, Schneider and many others. These drivers enable the Flexy 205 to read data from connected control systems and display it through its own visualisation system. The router also has the capability to log data to its on-board memory, interconnect it, monitor it via its built-in alarm system and send it, for example, to a remote control room via the Talk2M service. Apart from read operations, the Flexy 205 can also write data to PLCs. This functionality can be disabled for given tags if the user needs to do so.

Supported Integrated Communication Drivers (IO Servers)

IO Server's NameData Source
MEMInternal memory tags in the Flexy
EWONIntegrated inputs / outputs and internal system tags in the Flexy
MODBUSModbus devices with the Modbus TCP and Modbus RTU interfaces
OPC UADevices with the OPC UA interface; Flexy 205 can acts as OPC UA Server as well as OPC UA Client
SNMPDevices supporting the SNMP v1 protocol
Allen-Bradley PLC
Mitsubishi PLC
BACNETDevices supporting BACnet communication

Program Your Own PLC Driver


Apart from supporting communication with the most popular control systems, the Flexy 205 allows you to program your own communication drivers through JAVA. This functionality makes the Flexy 205 a true IIoT data gateway that enables you to transfer data from your machines all over the world to a single monitoring software system.

On-Board Memory for up to 1 Million Values

datalog.png?sfvrsn=cbf483d6_2The Flexy 205 features integrated memory for up to 1 million tag data values, including timestamps. The memory enables you to log data from connected control systems at a fixed interval (the minimum interval is 1 s) and on value change. Logged data can be visualised through the Flexy 205's own visualisation system, sent to a central database via cloud, retrieved by FTP / HTTP or sent as an email attachment.

Alarm Management and Notification - Email & SMS


The Flexy 205 features a sophisticated alarm system that allows you to assign alarms and events to particular monitored values from connected control systems. When a value threshold has been reached, the Flexy will send a notification email or an SMS, perform an operation, etc.



The Flexy 205 features a built-in web HTML5 dashboard system that provides you with user-friendly display of online data from your machines. Data from the Flexy 205 can be displayed on a computer, a tablet and a mobile phone. The dashboard system is programmed through the free viewON application.

Programmable Using BASIC Scripting or JAVA

Basic Java

One of the most popular Flexy 205 features is the capability to modify the router's behaviour through the integrated BASIC scripting language. Common functionality modifications include:

  • Writing a program for performing simple operations based on collected data
  • Carrying out actions at a given time or on trigger
  • Exchanging data between connected PLC systems
  • Modifying Email and SMS notifications
  • Sending collected data through FTP servers

OPC UA – Ready for Industry 4.0


The OPC UA technology allows Flexy 205 users to transfer data from connected control systems (via IO Servers) to higher systems via the OPC UA protocol. The Flexy can act both as OPC UA Server and OPC UA Client. As OPC UA Client, it can connect to OPC UA Servers (e.g. the SIMATIC S7-1500 PLC), read / write data from / to these systems, monitor it through an alarm system, log it to memory, display it through visualisation or send it to a control room via the Talk2M.

The diagram below shows how users (Window 1) connect to remote devices (Window 3) through the Talk2M cloud service and the Flexy 205. The Flexy 205 can also be used to transfer data from control systems to local programs and applications (Window 2).




ModularitaThe Flexy 205 contains only two slots for inserting up to 2 Flexy extension cards. Unlike its predecessors, the Flexy 201–203, the Flexy 205 enables you to insert extension cards in either of the two slots (i.e. both slots support all the extension cards).

Flexy Extension Cards

FLB3204 (EU)

eWON Flexy 205, FOXON distributor
  • This card allows you to connect the Flexy 205 to the Internet and the Talk2M cloud service via 4G, LTE, 3G (HSPA/WCDMA) and 2G (GPRS/EDGE) mobile networks.
  • For availability of cards supporting the AT&T and Verizon networks, please contact us.




eWON Flexy 205, FOXON distributor
  • This card allows you to connect the Flexy 205 to the Internet and the Talk2M cloud service via GSM, 2G, 3G and 3G+ mobile networks.
  • Pentaband UMTS/HSUPA modem, 7.3 Mbit/s download, 2 Mbit/s upload







eWON Flexy 205, FOXON distributor
  • This card allows you to connect the Flexy 205 to the Internet and the Talk2M cloud service via WiFi
  • 802.11 b,g,n WiFi Client










eWON Flexy 205, FOXON distributor
  • This card provides your Flexy 205 with one MPI connector for connecting the SIEMENS S7-300/400 PLCs.
  • 1x MPI port








eWON Flexy 205, FOXON distributor
  • This card with two serial ports allows you to connect the Flexy 205 to devices with serial port.
  • 1x RS232/422/485, 1x RS232








eWON Flexy 205, FOXON distributor
  • This card features inputs and outputs – 8x DI, 4x AI and 2x DO.
  • It enables you to monitor inputs of devices that are not connected to the PLC which is connected to the router.







eWON Flexy 205, FOXON distributor
  • This card with three USB ports allows you to connect the Flexy 205 to up to 3 devices via USB port.







How to Set up the Flexy 205

When you have connected your computer to the router's LAN port, open a web browser and enter the Ewon's IP address (the default IP address for new Ewons is You will then be asked to set your username and password (the default username and password for new Ewons is "adm").

In the top right corner, click on Wizards to easily set up your Flexy 205. In System, you set your Ewon's name and the username and password for its web interface. In Internet, choose the type of router Internet connection. In VPN, you set up access to the Talk2M cloud service. In Gateway, you set the router's serial port if the router contains it. Nevertheless, to easily set up your Flexy 205, simply run the Quick Launch Wizard, which will guide you through the whole process step by step.


A Comprehensive Summary on a Single Page

In the Summary tab, you can see a general summary with such information as Internet connection, the router's IP address, inserted extension cards and VPN connection status.


An Example of PLC Connection Setup

Below you can see how to set the IO Server for connecting the SIMATIC S7-300 PLC via Ethernet port.


An Example of Tag Configuration

In the Values tab, you can configure and monitor tags from connected S7-300 and S7-1500 PLCs (With the S7-1500 PLC, the Flexy 205 communicates via the OPC UA protocol.). This page also provides tags from the Siemens SENTRON power meter via the MODBUS protocol and the router's inputs and outputs (i.e. the router's FLX3402 extension card).


An Example of the Flexy 205's Integrated Web Visualisation

When you have successfully connected your Flexy 205 to a control system, you can display data from this system in the ViewON application. This free visualisation tool allows you to create simple visualisation screens, which support read as well as write operations. Simply import data from your Flexy 205 into the ViewON program and assign values to ready-made graphical objects and controls. You can also make use of graphs with live as well as historical data.


Setting Alarms, and Tag Types

The alarm system can be connected to digital (boolean) as well as analogue (0–100%) values. Alarm activation for boolean tags can be set to value 0 or 1. For analogue tags, there are four types of alarm levels – LowLow, Low, High and HighHigh.

Setting Alarms for a Boolean Tag

Setting Alarms for an Analogue Tag



eCatcher v.6.1.2msi6.5.280.57 MB

NEW version. eCatcher – easy, secure, Internet remote access with Talk2M. For Free+ and Pro services.

eBuddy 12.0exe12.33.19 MB

NEW version. Free Ewon add-on tool to easily – set up Ewon IP address, upload Ewon firmware upgrades, backup/restore data and configurations. Requirements: Windows 2000, XP, Vista or 7 – 64 bits

Talk2M VPN checkerzip2019-054.48 MB

The Talk2M Connection Checker allows to verify if the needed outgoing ports for the Talk2M connection are opened on your Internet connection.

Talk2M Pro connection checkermsi3.0.62.07 MB

Win7 (or XP) 64bit The Talk2M Connection Checker allows to verify if the needed outgoing ports for the Talk2M connection are opened on your Internet connection. It tests the various communication channels available to connect to the Talk2M servers. No real VPN connection is performed though.

Ewon Gateway station file for STEP7® cfgv3.13.31 kB

Ewon configuration file for import into NetPro network setup in the STEP7®.

Ewon Gateway station file for STEP7® (with WinCC installed)cfgv3.23.74 kB

Ewon configuration file for import into NetPro network setup in the STEP7®, with WinCC installed.

Ewon Gateway station library for TIA V11zip2019-05458.54 kB

Ewon configuration file for import into the TIA portal V11

Ewon Gateway station library for TIA V12zip2019-05658.56 kB

Ewon configuration file for import into the TIA portal V12

Ewon Gateway station library for TIA V13zip2019-05921.99 kB

Ewon configuration file for import into the TIA portal V13

Ewon Gateway station library for TIA V14zip2019-05138.93 kB

Ewon configuration file for import into the TIA portal V14

Manufacturer’s documentation

Ewon Flexy 205 Brochurepdfv1.13.78 MB

brochure EN

Ewon Flexy 205 - datasheetpdf20191.31 MB

datasheet EN

Ewon Flexy Datasheetpdf2019-05901.63 kB
Ewon Flexy 205 – installation guidepdfv1.419.04 MB
Ewon Flexy – Family User Guidepdfv1.42.24 MB
Ewon Flexy Family – reference guidepdfv1.31.31 MB
Ewon eCatcher4 – Getting startedpdfv2.01.55 MB
Ewon eCatcher 4 – Security Featurespdfv1.00.96 MB
Ewon eCatcher4 – New Featurespdfv1.0965.81 kB
How to configure the initial value of Digital Output 1 of Ewon Flexy modelpdfv1.0313.78 kB

Configure the initial value of Digital Output 1 (DO1)

Ewon Flexy FLA3301 – Brochurepdfv1.0585.52 kB
Ewon Flexy FLA3501 – Brochurepdfv1.01.26 MB
Ewon Flexy FLB3202 – Brochurepdfv1.01.01 MB
Ewon Flexy FLB3271 – Brochurepdfv1.01.01 MB
Ewon Flexy FLX3101 – Brochurepdfv1.0531.34 kB
Ewon Flexy FLX3401 – Brochurepdfv1.11.93 MB
Ewon Flexy FLB3601 – Brochurepdfv1.02.00 MB
eWON – remote solutionspdfv1.13.57 MB
Ewon Flexy FLB3204 – Brochurepdfv1.02.16 MB
Ewon – geolocationpdfv1.01.00 MB

User guide for router location  

Ewon Flexy – Export Block DescriptorpdfRG0009-00404.26 kB

An Export Block Descriptor is a string of characters describing the Ewon data to export a predefined syntax.

eWON Flexy – IO serverspdfRG0007-002.14 MB

reference guide

Ewon Flexy – FLB 3601pdfv1.113.94 MB

USB Extension Card

Ewon Flexy – FLA 3501pdfv1.23.30 MB

PSTN Extension Card – reference guide

Ewon Flexy – FLB 3271pdfv1.62.80 MB

Wi-Fi Extension Card – reference guide

Ewon Flexy – FLB 3202pdfv1.66.93 MB

3G GSM Extension Card - reference guide

Ewon Flexy – FLX 3402pdfv1.22.21 MB

8DI-4AI-2DO Ext. Card – reference guide

Ewon Flexy – FLX 3101pdfv1.45.62 MB

Single Ethernet Ext. Card – reference guide

Ewon Flexy – FLA 3301pdfv1.37.32 MB

2 Serial Ports Ext. Card – reference guide

Ewon Flexy – FLC 3701pdfv1.1552.27 kB

MPI Extension Card – reference guide

Ewon Flexy – FLB 3205pdfv1.0700.23 kB

4G (NA) Extension Card – reference guide

Ewon Flexy – FLB 3204pdfv1.2636.65 kB

4G (Europe) Extension Card – reference guide


eVCOMexe1.3.1.341.36 MB

Simulation of virtual com port

Ewon – Declaration of Conformitypdf2019-05239.02 kB

EC Declaration of conformity for Ewon CD family

Ewon Talk2M STAR (White Paper)pdf2019-051.51 MB
Ewon Talk2M ISO 27001 (White Paper)pdf2019-050.96 MB
Certificate ISO 27001 (Ewon/Talk2M)pdf2019-05736.24 kB
Certificate STAR (Ewon/Talk2M)pdf2019-05566.51 kB


General Features

RoutingRouting capability between LAN and WAN Ethernet interface and Ethernet to serial gateway
Ethernet to Serial Gateways


Data Acquisition Protocols

OPC UA, MODBUS/RTU, MODBUS/TCP, Unitelway, DF1, PPI, MPI (S7), PROFIBUS (S7), FINS Hostlink, FINS TCP, EtherNet/IP™, ISO TCP, Mitsubishi FX, Hitachi EH, ASCII, BACnet/IP. Stored in 2500 internal tags

Data Publishing Protocols



Alarms notification by email, SMS, FTP put and/or SNMP traps. 4 Thresholds : low, lowlow, high, highhigh + deadband and activation delay.Alarm logs in http and via FTP, Alarm cycle: ALM, RTN, ACK and END


Internal data base for data logging (real-time logging and historical logging up to 1,000,000 timestamps). Retrieval of the database with files transferred by FTP or email

SD card reader

YES, for easy commissioning (firmware upgrade, backup, Talk2M registration).


IP filtering, IP forwarding, NAT, Port forwarding, Proxy, Routing table, DHCP client/server

VPN TunnellingOpen VPN either in SSL UDP or HTTPS
VPN Security

VPN sessions are end-to-end encrypted using SSL/TLS protocol. Communications between the remote user and the eWON are fully encrypted using the SSL/TLS protocol, thereby ensuring data authenticity, integrity & confidentiality. Indeed, all users and eWON units are authenticated using x509 SSL certificates and end-to-end traffic is encrypted using strong symmetric & asymmetric algorithms that are part of the SSL/TLS protocol cipher suite.


Script interpreter for Basic language, Java 2 Standard Edition environment

SynchronizationEmbedded real-time clock, manual setup via http or automatic via NTP

File Management

FTP client and server for configuration, firmware update and data transfer


Embedded web interface with setup wizards for configuration and maintenance (no extra software needed). Authentication with login/password and session control for security. Possibility of uploading custom web GUI. Compatible with viewON web HMI.

User Flash Disk

up to 30MB available for user application


SNMP and/or via FTP files

Temperature Range

Operating: -25°C to +70°C, 10 to 95% relative humidity (non-condensing)

Storage: -40°C to +70°C, 10 to 95% relative humidity (non-condensing)

Warranty36 months

Flexy 205 Base Module


Din Rail or wall screw fixing system

Dimensions: 133 x 122 x 55 mm (H x D x W );

Weight: 280 g without extension card

Power supply

12 - 24VDC +/-20%, LPS

Consumption: depending on the extension card installed (see Installation guide on our website)


2x digital input: 0 to 12/24VDC; 1.5kV isolation

1x digital output: open drain (MOSFET) 200mA; 1.5 kV isolation

Flexy 205 base module interface

4 x RJ45 Ethernet 10/100 Mb .Configurable LAN/WAN ports, port 1 always LAN

Flexy Extenstion Cards:

Dual serial ports (FLA3301)

Number of ports

1x male SUBD9 serial port RS232/422/485 configurable by dipswitch and 1x male SUBD9 RS232 serial port with RTS, CTS signals

Cellular 3G+ (FLB3202)


Pentaband UMTS/HSPA+ modem (800/850, 900, AWS1700, 1900, 2100 MHz)

Quad band GPRS/EDGE (850, 900, 1800, 1900 MHz)

Antenna ConnectorType SMA - Female


Not included in the delivery

EU 4G LTE (FLB3204)


4G: B7(2600), B1(2100), B3(1800), B8(900), B20 (800)MHz

3G: B1 (2100), B8 (900) MHz

2G: B3 (1800) , B8(900) MHz

Antenna ConnectorType SMA - Female
AntennaNot included in the deliver

WiFi (FLB3271)

Wan connectivityWiFi: 802.11 b/g/n WiFi/WLAN client for remote connection
FrequenciesChannels: 1 to 11 ( inclusive )
SecurityWPA2, WPA and WEP
Antenna ConnectorReverse SMA male connector

included in the delivery; frequency: 2.4 GHz; impedance: 50 Ohms, gain:2.0 dB

I/O card (FLX3402)

Number of inputs/outputI/O card with 8x DI, 2x DO, 4x AI (0-10V, 4-20mA)

AI : voltage mode 0-10V - 16 bit resolution or current mode 4-20mA, user selectable with Dip Switch configuration. DI : 0 to 12/24 VDC,DO: 2A/30V VAC/VDC


AI: 1.5kV from power supply, DI: 1.5 kV from electronic AND power supply, DO: 1.5kV from electronic AND from power supply

3 USB Ports Card (FLB3601)

Leds4 leds : 1 global status, 1 for each port status

Type A female

Current limit

Each port has its own 500mA current limit. Global current limit on the board is 500mA

Port activationAll ports will be enabled/disabled together

Earth GND isolation is limited to 500V due to USB connector design

Ethernet WAN (FLX3101)

Ethernet port

1x RJ45 Ethernet 10/100 base Tx; 1.5kV isolation

MPI (FLC3701)

1 x female SUBD9 MPI port, 1.5kV functional isolation from power supply

Talk2M PRO

The Pro service of Talk2M provides secure on-demand access for a large number of remote machines and devices, ranging from a few hundred to several thousand. Combined with an eWON industrial router, it facilitates perfect integration with a large variety of PLCs and automated devices.

Additionally, Talk2M Pro enables several users to access many machines at the same time.
A fully detailed connection report itemized by machine is available each month. Now it is possible to provide Web API* features for third-party applications, which makes Talk2M Pro a powerful remote service platform that can grow with your needs.

eCatcher, the PC client client, provides an intuitive user interface for accessing a large number of machines and devices over the Internet. Users can work independently and manage their own accounts (other users and remote machines) without any need for IT experts. For example, user access can be restricted to a specific group of machines, and users can be granted or denied the ability to manage other users. This major breakthrough facilitates easy deployment while circumventing IT complexity. eCatcher is the engineer"s machines address book.


  • The professional Talk2M service
  • Mission critical SaaS hosting
  • Get powerful access control
  • Pay per concurrent connection

Video eWON Flexy 205

General video about Ewon Flexy

Configure an Ewon for Remote Access

Configure your Ewon for Remote AccessTalk2M Easy Setup for Ethernet
Talk2M Easy Setup for Wi-FiTalk2M Easy Setup for cellular
Další videa:
Talk2M Easy Setup - USB stick processEwon Flexy - Internet Wizard for Ethernet connection
Reach an Ewon with ezDHCPEwon Flexy - Internet Wizard for Wi-Fi connection
Ewon Flexy - Internet Wizard for cellular connectionEwon Flexy - Internet Wizard for cellular connection with APN helper
Ewon Flexy - Talk2M WizardTalk2M Automatic Registration using an SD card
Set the IP Address of your Ewon

Manage a Talk2M Free+ Account

Introduction to Talk2M Free+ accountCreate a Talk2M Free+ account
Add an Ewon in Talk2MAdd a User to Talk2M
Další videa:
Custom Fields in Talk2mTalk2M Easy Setup for Wi-Fi
Map ViewTalk2M Easy Setup for cellular
M2Web PlatformTalk2M Easy Setup - USB stick process
Talk2M Automatic Registration using an SD cardM2Web - List view
Talk2M Easy Setup for EthernetM2Web - on Smartphone
M2Web - Map viewM2Web - Logo Program

Remote Connection

Connect Remotely to a PLC using direct IP addressConnect remotely to USB Devices
Connection LogseCatcher vs M2Web
Další video:
Triggered Connection: wake up & put asleep

Security - Talk2M Free+

Security - Talk2M Free+ : Password ManagementSecurity - Talk2M Free+: Two Factor Authentication
Security - Talk2M Free+ : User vs AdminSecurity - Talk2M Free+ : LAN Devices & Firewall

Security - Talk2M Pro

Security - Talk2M Pro: Two Factor AuthenticationSecurity - Talk2M Pro: Access Control
Security - Talk2M Pro: Password Management

M2Web - An easy way to check your machine status from anywhere, at any time

Security - Ewon device

Security - Ewon device: Change the default passwordSecurity - Ewon device: Change LAN IP address with eBuddy
Security - Ewon device: SD card configurationSecurity - Ewon device: WAN protection
Další video:
Security - Ewon device: Change the default password


Normally, if your environment is running smoothly, no firmware update is required. We recommend upgrading the firmware only if you want to take advantage of new features or fixes. 

New important features or fixes are also announced through our news section . And here are Detailed release notes.

How to upgrade?

Use our eBuddy software to upgrade the firmware of your Flexy.

Via this Companion tool, you will download the latest firmware version available for your Flexy onto your computer and upgrade it then directly via eBuddy. Here's how to proceed:

  1. Launch eBuddy
  2. Download latest Flexy firmware : 

eBuddy Process 1

Be sure to select the right product with the corresponding language:

eBuddy Process 2

  1. Upgrade the firmware of your eWON Flexy  
    You will need to distinguish a minor from a major firmware upgrade

    If you are simply changing the Service version, for example from v8.1 s0 to v8.1 s4 , this is considered as a minor upgrade. For any other upgrade, for example from v8.1 to v8.2 or v8.2 to v9.0, it is considered as a major upgrade.

    For major upgrade

    For minor upgrade

    • Make sure your PC has a compatible IP address with the eWON IP address (LAN or VPN)
    • Select the update firmware wizard inside eBuddy
    • Encode the IP address of your eWON (or use the Browse function)
    • Confirm the firmware update
    • Wait until eWON reboots with new eWON firmware.

In addition to the eBuddy firmware upgrade process, there are alternative methods such as upgrading the firmware using FTP, downgrading firmware, etc. Find more in the firmware section.

Talk2M FREE+

The Free+ service of Talk2M is an Internet connectivity tool designed to address the growing need for broadband and wireless access in the automation world for remote maintenance and access to remote equipment.

The key added value of Talk2M is full integration of IT security standards by enabling Internet tunneling between the user and the remote machine without requiring any changes to IT network security settings at either end. This major breakthrough facilitates easy deployment while hiding the complexity of the IT network infrastructure.

On request or permanently (depending on the integrated modem of the eWON unit), the eWON unit establishes a secure VPN connection to the Talk2M web server using a UDP or TCP HTTPS port, thereby passing through the firewall and proxy server. At the other end, the user establishes a secure VPN connection to the Talk2M web server. The Talk2M server acts as a relay to interconnect the two VPN tunnels. The information exchanged during the communication session is encrypted (128-bit SSL), and only authenticated users can connect to the eWON unit.


  • Get instant connection with machines at broadband speed
  • One click to connect within fully secure VPN tunnel
  • No need for IT experts" assistance
  • Keep track who access the machines with connections report
  • No initial investment, go for SaaS hosting
  • Start using Talk2M now, unlimited in time free service


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