Using the IE system apps to preprocess PLC data and push it to the cloud
This example demonstrates how to use the Industrial Edge System Apps to read data from a PLC, preprocess it and to push it to the cloud
The SIMATIC S7 Connector is used to read status data from the PLC in a 100ms cycle and publishes it to the IE Databus The IE Flow Creator is used to read the data and calculate the flow in m3/min and publish it back to the IE Databus The IE Cloud Connector then reads this preprocessed data and publishes it to the AWS cloud.
To set up this example, the IE Databus, the SIMATIC S7 Connector and the IE Cloud Connector have to be configured.
- SIMATIC S7 Connector V 1.0.22
- SIMATIC S7 Connector Configurator V 1.0.9
- IE Databus V 1.0.11
- IE Databus Configurator V 1.0.44
- IE Cloud Connector V 1.0.15
- IE Cloud Connector Configurator V 1.0.9
- IE Flow Creator V 1.0.3
- Industrial Edge Device V 1.0.0-34
- PLC: CPU 1511 FW 2.8.3
- The Bottle filling example project is loaded to a PLC on which a OPCUA server is running.
- The minimum publishing interval and sampling interval of the OPC UA server of the PLC is set to 100ms
- SIMATIC S7 Connector is installed on the industrial edge device (IED)
- IE Cloud Connector is installed on the IED
- IE Flow Creator is installed on the IED
- Access to AWS with permission to create IoT Devices and policies
The used TIA Portal project can be found in the miscellenous repository under the following name and is also used for several further application examples:
Please refer to the Installation documentation
To publish preprocessed data of the PLC to the cloud, the IE Flow Creator is used to receive the data published to the databus by the SIMATIC S7 Connector, prepocess it and publish the result to the topic the IE Cloud Connector is listening to.
In the bottlefilling and the following flow, the filling level of the tank is used to calculate the flowrate of the tank filling wich is then published to the aws IoT thing. Configure the IE System Applications according to the Installation documentation and deploy the provided flow into the IE Flow creator. Before deploying the flow enter the user credentials configured in IE Databus in the MQTT-Node.
Start the flow and the PLC Programm. The calculated flowrate is now visible in the aws IoT management console:
You can find the flow here
- You can find further documentation and help in the following links
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