Firmware 1.9 added support for HART Short Address (0-15) rather than just Poll Address 0. Manual 19 provides a step-by-step flowchart: MENU > HART > Polling > Short Address > Enter Number . Many users miss this because earlier manuals omit the "Short Address" submenu.
: Includes a VTR input for external media devices and a dedicated port for a backup (reversing) camera. Common Issue: "Insert Correct Map Disc" Ndda W55 Manual 19
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