I am setting up an application which publishes values to Ignition SCADA through MQTT using the SparkPlugB specification.
However, now I want to go in the other direction. I want Ignition to be able to change values and my application can read those changes.
The problem arises when I try to actually write to values in Ignition, sometimes nothing happens and sometimes it says that I cannot write these values.
What configuration / SparkPlugB specification needs to be set in order for Ignition to be able to write these values?
I have tried reading the SparkPlugB spec but so far found nothing that aids me in my quest.
