October 2018
Intermediate to advanced
962 pages
40h 41m
English
Content preview from Industrial Communication Systems
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LonWorks 41-11
Composite types are structures (struct) and unions (union) of basic types. Each SNVT eld has a scale
and an oset to represent values with a resolution lower than one. SNVT _ temp has, for example, a scale
of 0.1 and an oset of −2740 to represent a range of −274.0°C to 6,279.5°C by raw values 0–65,535 (2 bytes).
Other SNVTs, which are used in the example, are described in Table 41.1.
SCPT types oen reference SNVT types. For example, SCPTtempOffset, which is used as calibra-
tion oset of temperature probes, references SNVT _ temp _ diff _ p, which describes a temperature
dierence.
Manufacturers
can
use
their
own
user-dened ...
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