Connect Any MQTT Device to Inuatek DCC
Flexible Industrial IoT connectivity – with or without a dedicated gateway
MQTT has become the de facto standard for Industrial IoT communication, supported by a growing number of PLCs, HMIs, controllers, and IoT devices.
With Inuatek DCC, any MQTT-enabled device can become part of a scalable edge-to-cloud Industrial IoT platform
🔧 Connect directly from your PLC or HMI
Instead of configuring another hardware device, you simply:
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Create a generic MQTT configuration on DCC
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Load the resulting certificates to your PLC or HMI
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Configure it to map tags to a simple JSON MQTT payload
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Publish this directly to DCC
👉 No extra infrastructure
👉 No additional gateway management
👉 No separate configuration tool
🔐 Secure by design – without compromising OT security
Connecting directly from a PLC or HMI to DCC via MQTT does not inherently compromise security or conflict with modern cybersecurity frameworks such as NIS2.
In many architectures, the device only establishes an outbound encrypted MQTT connection to the cloud:
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No inbound ports need to be opened
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No direct remote access to the PLC is required
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No VPN tunnel into the machine network is necessary
👉 The PLC or HMI simply publishes selected operational data securely to DCC.
This creates a clear separation between:
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Operational machine control
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Cloud-based monitoring and analytics
Modern MQTT implementations support:
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TLS encryption
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Authentication and certificates
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Controlled outbound communication policies
Combined with proper network segmentation and standard IT/OT security practices, direct MQTT publishing is often a simpler and lower-risk architecture than traditional remote access approaches.
👉 Secure cloud connectivity and NIS2 compliance are not about avoiding connectivity - but about implementing connectivity correctly.
🧩 WHY NOT OPC UA?
OPC UA and MQTT are often presented as alternatives, but many industrial architectures use both.
OPC UA can provide structured access to PLC and machine data inside the local OT environment, while MQTT transports selected information efficiently to cloud platforms such as Inuatek DCC.
MQTT can also carry structured industrial data using conventions such as Sparkplug B - or even act as the transport for OPC UA PubSub.
Read our complete OPC UA vs MQTT guide to understand the differences, security models, Sparkplug B, bidirectional communication and when to use each approach.