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Communication with eWON industrial routers

Basic information:
 
The Belgian eWON company is one of the leading manufacturers of industrial VPN routers for remote device management. The eWON Flexy line of industrial routers is fully compatible with PLCs produced by renowned manufacturers: Siemens, Allen-Bradley, Modicon, Wago, ABB, Omron, Hitachi, Mitsubishi, VIPA, etc. ..
 
Producer Belgium: www.ewon.biz.
Distributors Czech republic: www.foxon.cz
Distributors Slovakia: www.controlsystem.sk
 
Compact industrial router eWON CD allows remote connection to devices (using VPN) and it is also possible to use it as hardware data concentrator (the 2000 family for online data, the 4000 family also provides logging capability into local memory).
 
The modular industrial router eWON Flexy allows (VPN) connectivity to remote sites where communication technologies may change in time, or where it is required to communicate with devices using various communication protocols. The Flexy basic unit can be complemented with additional modules, e.g.: LAN module, modem (3G, 4G, PSTN...), serial links (RS232/485/422), WiFi module (803.11 b, g, n), IO module (8x DI, 4x AI, 2x DO) etc. The Flexy also has internal memory for local datalogging.
 
eWON CD and eWON Flexy features:
 
These routers can read data from various devices using built-in communication protocols and also enable the data to other systems/devices by the Modbus protocol (in principle, these devices can also be used as hardware communication converters from various protocols to Modbus), by FTP or by HTTP in XML format. eWON Flexy and eWON CD of the 4000 family can also log the data locally (as datalogger). It is possible to keep log of more than 1 million values with a timestamp.
 
Supported communication protocols: Modbus RTU, Modbus TCP/IP, Uni-Telway, EtherNet/IP, DF1, FINS TCP, FINS Hostlink, ISOTCP, PPI, MPI, PROFIBUS, Mistubishi FX, Hitachi EH, ASCII
VPN support: secured remote access via VPN
Alarm notification: E-mail, SMS, SNMP trap, put FTP
HMI web server: integrated user web server for remote monitoring
 

Communication of eWON router with PROMOTIC SCADA software

Reading online data:

Reading online data is possible if the PROMOTIC application runs in common local network with the eWON device, if the eWON device is directly visible on the internet (unsecure communication), or if the eWON device is connected via VPN (secure communication managed by the eCatcher software).

 
Communication by the Modbus protocol:

This way of data reading from eWON router appears to be the simplest option. In order to make this work, it is necessary to configure the Modbus TCP server in the eWON router. Visibility of each eWON tag via MOdbus TCP must be enabled (in "Tag visibility" section) and corresponding registry address must be set.

The following preconfiguration(s) can be used for reading online data via the Modbus TCP protocol:

Preconfigurations PmModbusMr - Communication set with data and panel for non-defined device

 
HTTP communication:

The EBD (Export Block Descriptor) can be used in order to read online (and also historical) data from the eWON device. The data is read in CSV format.

The following preconfiguration(s) can be used for reading online data via the HTTP protocol:

Preconfigurations eWON HttpRequest - Communication with eWON industrial routers - Communication set with data and panel

 
Reading historical (offline) data:

Historical data can be read both localy and remotely. The eWON device can also save the data into a public cloud service by using the Talk2M internet service or into its own cloud managed by the eFive VPN Server.

 
HTTP communication:

The EBD (Export Block Descriptor) can be used in order to read historical (and also online) data. The data is read in CSV format.

The following preconfiguration(s) can be used for reading historical (offline) data via the HTTP protocol:

Preconfigurations eWON HttpRequest - Communication with eWON industrial routers - Communication set with data and panel

 
Reading data from Talk2M cloud:

The DataMailbox WEB API can be used in order to read historical data from Talk2M cloud in JSON format.

The following preconfiguration(s) can be used for reading historical (offline) data from Talk2M cloud:

Preconfigurations eWON HttpRequest - Communication with cloud service Talk2M Mailbox - Communication set with data and panel

 
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