Secure data transfer to mobile devices
The TwinCAT IoT Communicator from Beckhoff is said to simplify communication between PLCs and mobile devices by connecting the TwinCAT controller directly and securely to a messaging service through TLS encryption.
For smartphone and tablet users, the associated IoT Communicator App ensures that process data can be represented on all mobile devices in a clear overview. Alarms are sent to the device as push messages.
The TwinCAT 3 IoT Communicator exchanges data using a publish/subscribe mechanism. Because no special firewall settings are needed, integration into an existing IT network is easy. Information is exchanged via a message broker that uses the standardised MQTT protocol and acts as a central messaging service in a cloud or local network.
Transmitted process data can be displayed on mobile devices using the IoT Communicator App which also incorporates an integrated QR code scanner to facilitate entry of access data for communication between the broker and individual users.
The TwinCAT IoT Communicator offers a number of advantages over conventional e-mail and SMS messages by visualising live data, variables and status values.>
Source: Control Engineering Europe - All Articles