--- title: "MQTT Broker for Manufacturing | OEE, MES & UNS | ConnectMQ" description: "A managed MQTT broker for manufacturing: connect PLCs, edge gateways, MES and SCADA in an ISA-95 unified namespace for live OEE and predictive maintenance." url: "https://connectmq.com/industries/manufacturing/" language: "en" --- ![](https://connectmq.com/images/industries/hero/manufacturing.webp) # One unified namespace for every line and plant PLCs, CNCs, robots and test stations publish once through edge gateways; your MES, SCADA, historian, OEE dashboards and maintenance tools subscribe. ConnectMQ runs the MQTT broker, so your OT team doesn’t have to. [Try it free](https://app.connectmq.com/signup) [Use cases](#use-cases) No card required The challenge ## Plant data stuck in point-to-point links 1. 01 ### Integration spaghetti Every new dashboard, MES module or analytics project means another OPC UA session, another Modbus poll or another script against the same PLC. Nobody knows any more what depends on what. 2. 02 ### Islands of automation Each line, machine builder and plant has its own SCADA project, tag names and historian. Comparing OEE across sites turns into a spreadsheet exercise at the end of the month. 3. 03 ### Downtime you see too late Spindle vibration, motor temperature and cycle-time drift are already in the controller, but they reach maintenance as a breakdown and a CMMS ticket after the line has stopped. Why ConnectMQ ## Why manufacturing teams choose ConnectMQ MQTT is the de facto transport for a unified namespace. ConnectMQ gives you a private broker for it — without a server to install and patch in the plant DMZ. - ### A managed broker for your UNS Your own isolated broker instance, MQTT 3.1.1 and 5 over TCP, TLS and WebSocket. Edge gateways such as Ignition, Kepware or Node-RED connect with standard settings. - ### Outbound TLS, per-machine ACLs Gateways open outbound TLS connections, so you add no inbound firewall rules into the OT network. Each gateway and application gets its own credentials and topic permissions. - ### ISA-95 structure built in Model enterprise, site, area, line and cell in the ISA-95 topic workspace, and let MES, ERP, historian and analytics subscribe to exactly the branch they need. - ### See the shop floor live The dashboard and topic monitor show values as they arrive, threshold rules alert on temperature, vibration or stoppages, and the 3D Digital Twin puts live values on each machine. Key use cases ## Key use cases in Manufacturing Most plants start with machine condition and OEE, then add energy and AI agents on the same namespace — no new integrations at the machine. [ ### Predictive Maintenance Stream vibration, temperature and motor current to your models and open work orders before a machine fails Explore the use case](https://connectmq.com/use-cases/predictive-maintenance/)[ ### Asset Performance Tracking Live OEE, availability and performance of critical assets across every site Explore the use case](https://connectmq.com/use-cases/asset-performance-tracking/)[ ### Industrial Agentic AI Operations Give your AI agents live plant data and a guarded way to act, through the unified namespace Explore the use case](https://connectmq.com/use-cases/industrial-agentic-ai/)[ ### Energy Management Sub-metered energy per site, line and asset, with peak-demand alerts in real time Explore the use case](https://connectmq.com/use-cases/energy-management/) Architecture ## From the shop floor to your systems - PLCs & CNC machines - Edge gateways (OPC UA, Modbus) - Robots & test stations - Energy & condition sensors **ConnectMQ**MQTT 3.1.1 · 5 · TLS - MES & ERP - SCADA & historian - OEE dashboards & analytics - CMMS & AI agents Example topic namespace ``` acme/dallas/assembly/line-2/station-05/telemetry acme/dallas/assembly/line-2/station-05/alarms acme/dallas/assembly/line-2/station-05/state (retained) acme/dallas/assembly/line-2/oee (retained) acme/dallas/assembly/line-2/mes/work-order (retained) ``` Related solutions ## Solutions for Manufacturing [ ### Industrial IoT & Smart Manufacturing Machines, PLC gateways, OEE and quality data Learn more](https://connectmq.com/industrial-iot/)[ ### Connected Robots & Physical AI Robot fleets talking to fleet managers and AI pipelines Learn more](https://connectmq.com/robotics/) ## Manufacturing: frequently asked questions What is a unified namespace (UNS) and how does MQTT fit in? A unified namespace is one hierarchical topic tree — usually enterprise/site/area/line/cell, following ISA-95 — where every system publishes its current state and events. MQTT is the usual transport: machines publish once, and MES, SCADA, ERP and analytics subscribe to what they need. ConnectMQ is the broker that holds the tree, and its ISA-95 workspace helps you design and browse it. MQTT vs OPC UA for manufacturing: which should I use? Usually both. OPC UA is strong close to the equipment, reading a PLC or machine with a rich information model. MQTT is better at distributing that data to many consumers across the plant and the cloud. A typical setup is an edge gateway that reads OPC UA or Modbus and publishes to an MQTT broker such as ConnectMQ. How do I connect PLCs to an MQTT broker? Most PLCs don’t publish MQTT natively, so an edge gateway does it: Ignition, Kepware, Node-RED or a vendor IIoT gateway reads tags over OPC UA, Modbus TCP, S7 or EtherNet/IP and publishes them to ConnectMQ over TLS with its own credentials. Newer controllers with a built-in MQTT client can connect directly. Is a cloud MQTT broker secure enough for OT data? Connections are opened from the plant outbound over TLS, so no inbound ports into the OT network. Every gateway and application authenticates with its own username and password, and per-topic ACLs limit what each one can publish or subscribe to. Keep control loops and safety functions on the PLC, and use MQTT for monitoring, reporting and supervisory data. ## Pilot your unified namespace on ConnectMQ Start on the Free plan — no card required. Connect one line, build your first live OEE dashboard, then move to Basic or Scale when you go live. No overage charges, cancel anytime. [Get started](https://app.connectmq.com/signup) [See pricing](https://connectmq.com/pricing/) ## Other industries - [Automotive](https://connectmq.com/industries/automotive/) - [Oil & Gas](https://connectmq.com/industries/oil-gas/) - [Utilities](https://connectmq.com/industries/utilities/) - [Renewable Energy](https://connectmq.com/industries/renewable-energy/) - [Chemicals](https://connectmq.com/industries/chemicals/) - [Pharma & Life Sciences](https://connectmq.com/industries/pharma-life-sciences/) - [Food & Beverage](https://connectmq.com/industries/food-beverage/) - [Healthcare](https://connectmq.com/industries/healthcare/) - [Transportation & Logistics](https://connectmq.com/industries/transportation-logistics/) - [Retail & E-commerce](https://connectmq.com/industries/retail-ecommerce/) - [Telecom](https://connectmq.com/industries/telecom/) - [Financial Services](https://connectmq.com/industries/financial-services/) - [Agriculture](https://connectmq.com/industries/agriculture/) ## Articles [All articles](https://connectmq.com/blog/) Managed MQTT Cloud ### [How to Choose an IoT MQTT Broker: 12 Criteria and the Questions to Ask Your Vendor](https://connectmq.com/blog/how-to-choose-an-iot-mqtt-broker/) A practical 12-point checklist for choosing an IoT MQTT broker, a table of questions to ask every vendor, and a five-minute hands-on test you can run against broker.connectmq.com. September 21, 20269 min read Managed MQTT Cloud ### [What Is a Managed MQTT Broker? Benefits, Costs and How to Choose](https://connectmq.com/blog/managed-mqtt-broker/) A managed MQTT broker lets you run IoT messaging without operating servers, certificates or patches yourself. Compare managed and self-hosted, pick a deployment model and connect your first client in five minutes. September 1, 202610 min read Industrial IoT ### [Sparkplug B and the Unified Namespace: Structuring Industrial IoT Data on MQTT](https://connectmq.com/blog/mqtt-sparkplug-b-unified-namespace/) Sparkplug B gives industrial MQTT a strict session and payload model, while a Unified Namespace gives your plant data a single, readable home. Here is how they fit together, with topic design tips and live examples. August 26, 20269 min read