MQTT Connector
MQTT is a world wide standard for IoT messaging. It's protocol characteristics enables to transmit data in large amounts, even at a low level of broadband connection, securely and reliable to various participants.
The integrated MQTT client of the FlowChief system enables to capture data from third party systems (Cloud, LPWAN, databases) into the FlowChief system (subscribe). Simultaneously, data can be published to third party systems.
MQTT is not a classical point-to-point connection (compared to OPC UA). The broker organizes the communication between the clients.
Scenarios
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Linkage of IoT and cloud platforms AWS, Azure, Google Cloud-Platform)
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Linkage of LPWAN technologies (Lora, Sigfox, Narrow-Band IoT, LTE-M)
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Data hub - bidirectional communication between various participants
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Linkage of gateways, Edge devices and IoT sensors
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FlowChief Edge functionality - preprocessing and transmission of data to the cloud
| Details | |
| Amount of parallel connections | No limitation from software |
| Security Client | Authentication (user name, password), SSL/TLS can be activated |
| Subscription of multiple Topics per connection | Possible with Topic filters |
| Topic Filters | # (Wildcard) and + (Level-Filter) |
| Payload Interpreter | JSON and standard text |
| Acquisition of time stamps from Payload | Yes, possible if available, if not then server timestamp |
| Publishing activated per process item | Yes, configuration in process item properties |
| Frontend Configuration |
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| Symbolic addressing | Yes, are captured by the broker and can be addressed symbolic |
| Tag Browsing | Yes, Topic Browsing incl. text filter |
| Engineering Wizard | Yes, automatic acquisition of structures |
| Acqusition of meta data for configuration (e.g. unit, labels) | Yes, possible. |
| Licensing | |
| Optional Add-on | FC_MQTT (only License type Standard) |
| External Resources | |
| Webinar (German only) | Wie Sie Anlagen mit FlowChief 7.1 sicher und funktional vernetzen |