I have two scenarios that I would like to use a unique write access type for.
The first is at MQTT topic that publishes a 1 followed by a 0 shortly afterwards. Once I see this value change from 0 - 1 I would like to send some MQTT data back to the broker.
I have tried to configure the write as shown in the screen shot attached.
The second is another MQTT topic that publishes a timestamp as a string. Once this changes value I would like to trigger a write for some data to be sent to my plc. image of setup attached.
Can anyone please tell me where I am going wrong?