Intermittent errors are the bane of an integrator’s life.
Use KNXMonitor to pick all those spurious telegrams, find out what the triggers are, and fault find installations without being onsite.
We heard of a case the other day where the owner of a KNX house was complaining that the underfloor heating was always turning on in the bathroom overnight. Without having a network monitor onsite, or leaving a laptop with ETS connected to the project, the integrator used KNXMonitor to log the traffic in the building.
Imagine his surprise when he discovered that the underfloor heating was actually being turned on by accident, at the pushbutton in the bathroom, by the customer’s son when he got up to use the toilet in the night. Simple fix was to swap the position of the light and underfloor heating buttons on the switch!