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Connection issues Siemens Cloud Connect with IoT Central

Marek Sobala 20 Reputation points
2025-03-25T11:47:34.4966667+00:00

I am trying to connect a Siemens CC712 module to send data to my Azure IoT Central application. However, the set-up guide seems outdated, as most refer you to your IoT Hub name, which is not avaliable anymore, and in turns it is recommended to use the Azure Device Provisioning Service.

The Cloud Connect requires information such as:
Address

Port

TLS (which I would prefer to disable for now)

Username

Password

How do I configure this such that it connects and is able to send data to my IoT Central application?

Azure IoT Central
Azure IoT Central
An Azure hosted internet of things (IoT) application platform.
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  1. Sander van de Velde | MVP 36,131 Reputation points MVP
    2025-03-25T20:30:19.56+00:00

    Hello Marek Sobala

    welcome to this moderated Azure community forum.

    I see your documentation references the input of "Address, Port, TLS (which I would prefer to disable for now), Username, Password".

    This can never be a guide towards Azure IoT Central, simply because these fields are not part of a regular Azure IoT Hub or DPS connection.

    It seems you try to make use of a MQTT broker connection, probably using regular MQTT (v3.1.1 or v5) authentication and topics.

    Although Azure IoT Central and the Azure IoT Hub support MQTT as transport protocol, the topic usage and authentication differ from regular MQTT.

    Microsoft offers a 'vanilla' MQTT Broker as part of Azure EventGrid Namespace.

    Unfortunately, the authentication is highly secure and based on x509 certificates so a name/password combination is not enough at this moment.

    One alternative is hosting an open source MQTT broker in an Azure container environment as Azure Container Instances or Azure Kubernetes.

    Please connection with Siemens for other alternatives.

    If the response helped, do "Accept Answer". If it doesn't work, please let us know the progress. All community members with similar issues will benefit by doing so. Your contribution is highly appreciated.

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  1. Dominic 1,631 Reputation points Microsoft Employee
    2025-03-26T09:30:55.3333333+00:00

    Hi Marek - you could also consider using Azure IoT Operations (https://learn.microsoft.com/azure/iot-operations/) that deploys a fully standards compliant MQTT broker in a Kubernetes cluster at the edge. Azure IoT Operations includes multiple northbound connectors for other Azure cloud services such as Microsoft Fabric and Event Grid.

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