Skip to main content

Integration of DEFA AC charging station into the Eponet portal

These instructions are Step 3 for connecting a DEFA charging station to the Eponet Portal. 

You can find Step 1 via this link: Basic guide to integrating charging stations

DEFA-Power-charging-Done_transparent_0002_1000x1000-768x768-2892968207.png

Tested with software version 4.3.8

 

 

Prepare the charging station using the Power Setup app

Open the DEFA Power Setup app and connect to the charging station via Bluetooth.

IMG_2425.jpeg

You should now see this screen.

IMG_2426.jpeg

Scroll further down and tap ‘Edit’ under ‘Charger Settings’.

IMG_2427.jpeg

Now configure all settings as shown.

IMG_2431.jpeg

IMG_2432.jpeg

Confirm these settings, scroll further down and tap “New Handover”.

IMG_2433.jpeg

Now enter the name of the charger here and select ‘Eponet’ as the backend. Then click on ‘Hand Over’.

IMG_2434.jpeg

You can now scroll right to the bottom and select “Complete Setup”.

IMG_2435.jpeg

From this point onwards, the charging station is connected to Eponet and should appear online on the Eponet portal.

To start a charge using an RFID card, this feature must first be activated. To do this, follow the steps below.

Follow arrows 1 and 2. Then select the relevant charging station and click on arrow 3.
At arrow 4, you can now search for “authCtrlr”.

Bildschirmfoto 2025-11-19 um 10.29.55.png

You will now see a short list of configuration options.

Select the entry shown below.
Click ‘Edit’ next to arrow 1 and change the value from ‘false’ to ‘true’.

Bildschirmfoto 2025-11-19 um 10.29.35.png

Then click ‘Save’.
An RFID card can now be used.

Important settings for correct billing via the Eponet Portal:

‘EVConnected’ must be changed to: ‘EVConnected,Authorized’

grafik.png

Supplement to the commissioning instructions from the Swiss distributor Ferratec

 

The DEFA charging station can be configured in a variety of ways. This also requires the following settings to be configured:
DOWNLOAD ZIP file containing an Excel list from Ferratec.

Priority Setting Setpoint Meaning What needs to be done?
Important AuthCtrlr / Enabled true Enables authentication and allows a load to be started using an RFID card. Change from false to true.
Important AuthCtrlr / OfflineTxForUnknownIdEnabled false Prevents unknown RFID cards from charging when the backend connection is interrupted. Must not be enabled.
Important TxCtrlr / TxStartPoint EVConnected + Authorized Starts a transaction upon the first occurrence of either of the following events: vehicle connected or RFID successfully authorised. Select both values. Technically, this is a list/array with two entries.
Important TxCtrlr / TxStartPoint – Display EVConnected,Authorized Many user interfaces or Excel exports display the two list entries as comma-separated text. Check that two values are stored internally, rather than a single unknown text value.
Recommended TxCtrlr / EVConnectionTimeOut 120 Allows 120 seconds to connect the vehicle following RFID authorisation or remote start. Set to 120 seconds.
Recommended TxCtrlr / TxBeforeAcceptedEnabled false Prevents transactions before Eponet has accepted the station following the boot process. Set to false.
Important AlignedDataCtrlr / Enabled true Enables the regular transmission of energy and power values. Must be enabled.
Important AlignedDataCtrlr / Interval 900 Sends time-aligned measurement values every 15 minutes. If set to 0, no periodic Aligned Data values are sent. Set to 900
Important AlignedDataCtrlr / Measurands Energy.Active.Import.Register,Power.Active.Import Transmits the cumulative energy meter reading in kWh and the current active power in kW. Enter both measured values
Important AlignedDataCtrlr / TxEndedMeasurands Energy.Active.Import.Register Transmits the cumulative final meter reading at the end of charging. Set to Energy.Active.Import.Register.
Important SampledDataCtrlr / Enabled true Enables measurement values within a running OCPP transaction. Must be enabled
Important SampledDataCtrlr / TxStartedMeasurands Energy.Active.Import.Register Sends the initial meter reading when charging begins. Set or leave as is.
Important SampledDataCtrlr / TxEndedMeasurands Energy.Active.Import.Register Sends the final meter reading when charging ends. The difference gives the kWh supplied. Set or leave as is.
Optional SampledDataCtrlr / TxDefaultMeasurands Energy.Active.Import.Register,Power.Active.Import Defines current energy and power values during charging. Only enter this if the DEFA station stores the value.
Optional SampledDataCtrlr / TxDefaultSamplingInterval 60 Sends current measured values every 60 seconds. DEFA does not store this…
Optional SampledDataCtrlr / TxEndedSamplingInterval 60 or empty Optional sampling in connection with the end of a transaction. DEFA does not store this…

Checklist:

  • Authentication required > must be enabled

  • Deactivate authorisation if the charging stations are offline > must not be enabled

  • Is the charging station online on the Eponet Portal?

Important information before proceeding to step 4:
The DEFA AC charging station communicates exclusively via OCPP 2.0.1 – this must be selected when activating the station on the Eponet Portal!

Bildschirmfoto 2025-11-19 um 09.09.52.jpg

Now continue with step 4.

Back to top