Push messages

Messages can be received for each instance of the FB_IotCommunicator function block. These messages can be sent from the PLC using the methods SendMessage and SendMessageEx and are then displayed in the messages section of the app. Push notifications can also be received via the push agent. Further information on this can be found later in the chapter.

Categories can be set for messages as an option. The messages can then be filtered in the app using the check marks at the top of the screenshot. A maximum of 255 messages are stored for a device, after which a ring buffer principle is applied and the oldest message is removed.