Overview

The function blocks of the Tc3_IoTCommunicator PLC library can be used to execute a data exchange between the local TwinCAT PLC and a mobile end device (smart device) via an MQTT message broker. Symbols can be sent and received. To do this, the TwinCAT IoT Communicator app must be installed and running on the mobile end device.

If push messages sent from the PLC are to be received on the mobile end device, the TwinCAT IoT Communicator Push Agent must also be connected to the same message broker. The push agent communicates the messages with the TwinCAT IoT Communicator Push Server hosted by Beckhoff. This is then responsible for sending the push messages to the mobile end devices via a push notification service.

The TwinCAT IoT Communicator app can be downloaded free of charge from the Apple® AppStore or Google™ PlayStore.

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