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M-Bus Secondary Addressing

Reference page for M-Bus secondary addressing and meter discovery implications.

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What Secondary Addressing Means

Secondary addressing is the M-Bus mechanism used when primary addresses are not enough or when installed meter inventories need more dependable identification. It is often central to discovery and reconciliation work on real sites.

Why It Matters

  • It affects how meters are found and matched to documentation.
  • Sites with weak records often rely on secondary identification to rebuild inventory.
  • Discovery workflow changes when the bus has many similar devices.