Question

Which sequence correctly describes how a KNX sensor works?

KNX BasicLearnKNX Bus DevicesMedium
Answer

C — The application module reports its inputs to the BCU, which codes the data and sends it on the bus

Correct: This is the sensor data path stated in the text.

Source

KNX Basic Course Documentation — 1.3 — p. 125

All proposed choices (exam context)
  1. A.The BCU receives a telegram from the bus and the application module switches a load
  2. B.The application module sends telegrams directly onto the bus without the BCU
  3. C.The application module reports its inputs to the BCU, which codes the data and sends it on the bus
  4. D.The controller reads the inputs and the sensor regulates the actuators
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Last updated: 19 May 2026

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