How to add a charger to HARMON-E

This guide explains how to connect a charging station to HARMON-E using OCPP. It is written for Support and Operations teams and focuses on practical, step-by-step instructions.

Before You Start

• A site exists in HARMON-E
• You have access to the charger’s local configuration interface
• You are able to restart the charger
• The charger has the required network connectivity (internet or LAN)

If the site does not exist yet, create it first: How to create a cloud site

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Step 1: Copy the OCPP URL from HARMON-E

1. Log in to HARMON-E
2. Open the relevant site
3. Open the Control Hub tab
4. Copy the OCPP URL shown there

Step 2: Check the site type (Cloud vs GATEWAY/FLEXBOX)

The OCPP URL format depends on how the site is connected. Always use the URL shown in the Control Hub.

Site type	Description	OCPP URL format
Cloud-connected site	Each charger connects directly via internet / mobile network	wss://prod.flexecharge.com/{site-UID}
GATEWAY / FLEXBOX-based site	Chargers connect via LAN to a local GATEWAY or FLEXBOX	wss://{gateway-or-flexbox-IP-address}/{site-UID}

Step 3: Configure the charger

1. Open the charger’s local configuration interface
2. Find the OCPP / Central System URL setting
3. Paste the HARMON-E OCPP URL
4. Save the configuration
5. Restart the charger

Step 4: Verify the connection

1. Open the site in HARMON-E
2. Navigate to the list of chargers / charging stations
3. Confirm that the charger appears as connected or online

If the charger is visible and online in HARMON-E, the OCPP connection has been established successfully.

What Happens Next?

Once connected, the charger communicates through HARMON-E, which then connects onward to your CPMS:

Charger ⇄ HARMON-E ⇄ CPMS

Continue with: How to configure a charging station