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In this document, Compleo explains which functions are important for a backend provider when using a payment terminal and, if necessary, which should be implemented in order to ensure convenient operation for CPOs.

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the QR Code function for Ad-Hoc payment, how it is implemented and how it can be used by the operator.

Hardware

All AC-Hardware with a P5 Controller can use this feature once updated to 6.12.0 or higher.

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USE-Case

For public charging stations the AFIR requires a safe payment solution.
In the Case of AC charging stations and wallboxes this safe payment solution can be QR Code in the display that links to a payment site.
The payment site, operated by the backend operator, can than handle the payment and send a RemoteStartTransaction to the charging point.
The AFIR additionally requires the QR-Codes to be charge point specific.

Implementation

The charging stations with FW 6.12.X and the following have the possibility for the operator to display a QR Code on the display.

The configuration keys listed below can be used to display a payment QR Code on the station.

The charging stations with more than one charge point have separate keys for the right and left charge-point, and the QR code is displayed in the usual rotation of the different screens.

Image Added

If no value is entered into the keys, then no QR-Code will be displayed.

If the charge-point is in ‘ChargeForFree’ Mode no QR Code will be displayed.

In case of a communication error where the backend can not be reached a QR-Code will not be displayed to avoid problems with authentication. There will be an indication to the user that Ad-hoc payment is temporarily unavailable.

Configuration-Keys