Data Streams

If variables are available for recording they will be shown automatically as a so called Stream. At the moment it is possible to record data directly from the EtherCAT process image or from the PLC application.

Data Streams 1:

PLC Application:

If variables from PLC should recorded by the Analytics Logger, the user must set an attribute in front of each variable in the variable declaration.

The attribute syntax is: {attribute 'TcAnalytics'}

Data Streams 2:

As already described a new stream is automatically add to the Analytics Logger configuration after rebuild of the PLC project. In the stream a Selection tab is available to choose finally the variables by checkboxes who should be recorded.

Data Streams 3:

Process Image:

If an EtherCAT process image is available in the given configuration, an additional stream will be shown under the Data Logger tree node.

Data Streams 4:

On the Selection tab the user can choose again the values who should be recorded by the Analytics Logger.

Data Streams 5:

Start Record

With the activation of the TwinCAT configuration the Analytics Logger starts logging. Depending on the basic settings to a MQTT Message Broker or into a local binary file. By the given format there are different settings possibilities on the Data Handling tab of each Stream. See therefore the following chapter.

Further Information