CSMS Integration Guide

Overview

This document describes how to integrate an amina OCPP charging station with a CSMS.

Connection Topology

The connection topology between the charging station and the CSMS is quite straight forward, and is shown Image 3.1: Connection topology.

Image 3.1: Connection topology

What is important to understand is that the charging station is only directly connected to the CSMS central system. Any other system that the CPO wants to have interact with the charging station must go through the CSMS. Our charging station is NOT connected to any proprietary cloud services.

Hands-Off Charging Station Configuration

As opposed to the more common approaches of comprehensive on-site commissioning during installation, or remote commissioning using a proprietary cloud service, amina offers charging station provisioning in the spirit of “power-up and leave”. This means configuring a charging station towards a CSMS during production without the need for any direct interaction between the charging station and the CPO or CSMS. This is accomplished as part of the ordering process, where the CPO provides all the required configuration parameters for correctly configuring the charging stations in the ordering process. Then, during production, each charging station is provisioned with the parameters for the order, allowing it to connect to the CSMS without any further interaction.

Provisioning

Each charging station is provisioned with a unique serial number, which is used to identify the charging station in the CSMS. The serial number is provided to the CPO as part of the production data for the order. The format of the serial number is

[model][revision]-[serial]

amina C with hardware revision 1 would produce a hypothetical serial number of C1-1234567890, and amina M with revision 1 would produce a hypothetical serial number of M1-1234567890.

The product assembly variant based on what tethered cable is used is not included in the serial number. So a charging station with a 20A tethered cable will have the same model and revision as a charging station with a 32A tethered cable, but the information of the maxium charging current can we read over OCPP GetConfiguration command and derived from the value of read-only parameter Cst_MaxCurrentRotarySwitchSetting

All the configuration parameters provided by the CPO as part of the PO are provisioned during production, and will be present on the device when received by the CPO.

By default, charging stations connects to a CSMS using 4G LTE. Certificates are provisioned that allows the charging station to connect to the CSMS. The charging station combines the CSMS endpoint URL and its own serial number to form the final URL by which it connects to the CSMS. It is important that the charging station’s serial number is accepted by the CSMS. Otherwise the charging station will fail to connect to the CSMS.

Commissioning

The only on-site commissioning required is connecting the charger to the grid and setting the max charging current (Rotary Switch Setting). This must be done as described in the User & Installer Guide pamphlet that comes in the product’s box.

Power Up

When the charging station is correctly installed and powered on the LED indicates the status of the charging station. The charging station normally uses less than 30 seconds from being powered on to having successfully connected to the CSMS. The following table shows the charging station’s LED indicator statuses:

LED Indicator	Description
1 white blink every 4 sec	Charger powering up
2 white blink every 4 sec	Searching and connecting to 4G LTE network
3 white blink every 4 sec	Establishing connection to CSMS
Static white	Connected to CSMS
Alternating green/white	Waiting for authorization from RFID or app
Rapid alternating green/white	Authorization in progress
10 rapid yellow blinks	Authorization failed