Rockwell Automation 1794-OF8IH FLEX Isolated Input/Output HART Analog Modules User Manual
Page 126
Publication 1794-UM065B-EN-E - September 2010
114 Additional HART Protocol Information
110
Read all dynamic
variables
—
None
—
0
PV units code
—
1…4
PV value
(F)
5
SV units code
—
6…9
SV value
(F)
10
TV units code
—
11…14 TV value
(F)
15
FV units code
—
16…19 FV value
(F)
(1)
0 = burn EEPROM, 1 = copy EEPROM to RAM.
(2)
Truncated after last requested code.
(3)
0 = edit fixed current mode.
(4)
No a number when fixed output mode.
(5)
A = ASCII string (packed 4 characters in 3 bytes).
F = floating point data type (4 bytes) per IEEE 754,
D = date (day, month, year-1900).
B = bit mapped flags.
Unmarked types are 8-, 16-, or 24-bit integers.
(6)
Truncated after last requested variable.
(7)
24 bits each.
(8)
LSB and MSB return to AO #1…#24.
Common Practice Commands
Command
Data in Command
Data in Reply
#
Function
Byte
Data
Type
(5)
Byte
Data
Type
(5)