HART Communications
4.1 Universal HART Commands
F US Clamp-on Communications Protocol Manual
Hardware Installation Manual, 11/2015, A5E34981613-AC
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Table 4- 11 Command 12 - Read Message
Table 4- 12 Command 13 - Read Tag, Descriptor, Date
<write Descriptor CMD 18>
Table 4- 13 Command 14 - Read Primary Variable Transducer Information
Transducer Limits and Min Span Units
3 Enum
PV Units Code
Minimum Span 12-15 Float
PV Span
Table 4- 14 Command 15 - Read Device Information
PV Transfer Function Code
PV Upper and Lower Range Units Codes
< write units CMD 35 or 44>
PV Upper Range Value 3-6 Float
< write PV Upper Range CMD
PV Lower Range Value 7-10 Float
< write PV Lower Range CMD
Table 4- 15 Command 16 - Read Final Assembly Number