Structure of the HART-specific settings
* When the number of HART preamble bytes = 0, the number of preamble bytes required by the
connected field device are used, but no fewer than 5.
When the number of HART preamble bytes = 255, then 20 preamble bytes are used.
F-AI 8xI 2-/4-wire HART HA
Equipment Manual, 09/2021, A5E50557845-AA
HART operating data records
A.7 HART-specific settings
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