How to retrieve data from your Siemens PLC using Ewon Edge and Ewon Cloud.

25 Jan 2025

The Ewon Edge & Cloud solution allows users to read data from their PLC, meters, controllers,... and forward them to Aws IoT or Azure IoT Hub cloud.  The communication drivers supported today are Siemens (S7), Allen Bradley (Ethernet IP) and Modbus TCP.

 

APPLICABLE PRODUCTS

Ewon Edge
Ewon Cloud

PRE-REQUISITES

Your Ewon Edge must be registered to Ewon cloud : more details here

IN THIS ARTICLE

PLC Communication Settings

  • Open the Ewon devices properties and click "Devices"
  • Click the "..." icon and select "Add a new Device to your Gateway"
  • Enter a Device Name and Description, then choose Siemens ISO-TCP as the Protocol.
  • Select the PLC Type:
  • Type the PLC IP address, the Rack number and the Slot number. (Ex : S7-1500 standard config is Rack 0, Slot 1)
  • Define the polling interval to read the data

 

Tag Configuration

  • Click the Tab "Tag configuration"
  • Type a Tag name and Description
  • Type the Address of your Tag (Same syntax as in TIA Portal)
    • Mxxx (Ex : M26)
    • DBx.DBx (Ex : DB8.DB16)
    • Qx.x (Ex : Q0.1)
  • Select the Data type :
  • Repeat this for every tag you want to define. 

    By using the icons you can also export and import your Tags via a XLS file.

Once the device and the tag configuration are properly setup, click the icon to push the configuration to your Ewon Edge gateway or if you want to apply the new configuration locally via USB.

 

The next step, adding a Destination to send your Tag values, will be covered in separate articles.