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4.9
Cloud configuration
4.9.1
Notes on data structuring and configuration
Writing values to outputs
• Outputs and PLC tags
• DB tags
Data structures
Depending on the cloud provider, the data is structured differently for transfer to the broker:
● AWS / Azure / IBM Cloud
– Topics
● MindConnect IoT Extension / Other Cloud
– Groups
– Topic
Structure of the topic names
Because the requirements on the format of the topics can be different depending on the
receiver (broker, cloud), a topic name is made up of different parts.
Prefix and suffix generally apply to all topics.
Prefix and suffix are not relevant for groups.
SIMATIC CC7
Operating Instructions, 10/2019, C79000-G8976-C503-02
WARNING
When referencing to outputs and PLC tags with write access, note that the values are
written immediately to the outputs of the CPU without first being processed by the user
program.
Writing values has a direct influence on the process.
When referencing to DB tags, written values are only used when processed by the user
program.
A topic is the channel for the transfer of values of one or more data points.
You can create several topics.
No groups can be configured.
A group can contain one or multiple data points.
You can create one or more groups.
You can assign different topics to the groups.
MindConnect IoT Extension: In the default setting, the groups are assigned to the
standard topic "s/us" of the MindConnect IoT Extension.
Configuration
4.9 Cloud configuration
75
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