Rockwell Automation Publication 1718-UM001A-EN-E - December 2019
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Additional HART Protocol Information
Appendix C
HART PV, SV, TV, and
FV Status
HART PV, SV, TV, and FV are dynamic variables that contain the values of
device variables, which are various direct or indirect process measurements
performed by the HART field device.
Some devices let a set of their internal device variables be mapped to the PV, SV,
TV, FV dynamic variables that are automatically collected in the 1719-IF4HB
and 1719-CF4H
Input Tag.
This mapping is part of the field device configuration, usually performed via a
handheld configurator or asset management system, such as FactoryTalk
AssetCentre or Hauser FieldCare system.
107
Write Burst mode
transmitter
variables (for
command 33)
0
1
2
3
Transmitter variable
code for slot 0
Transmitter variable
code for slot 1
Transmitter variable
code for slot 2
Transmitter variable
code for slot 3
As in command
108
Write Burst mode
command
number
0
Burst mode command
number
As in command
109
Burst mode
control
0
Burst mode control code
(0 = exit, 1 = enter)
110
Read all dynamic
variables
None
0
1…4
5
6…9
10
11…14
15
16…19
PV units code
PV value
SV units code
SV value
TV units code
TV value
FV units code
FV value
(F)
(F)
(F)
(F)
x
x
x
x
x
x
x
x
x
x
x
x
(1) 0 = exit Fixed Current mode.
(2) Truncated after last requested code.
(3) 0 = burn EEPROM, 1 = copy EEPROM to RAM.
(4) Truncated after last requested code.
(5) Not a number exits Fixed-output mode.
(6) (A) = Packed ASCII, (B) = 3-byte integer, (D) = Date, (F) = Floating Point (HART format), (H) = HART flag
(7) Truncated after last requested code. Truncated after last requested variable.
(8) Truncated after last requested level.
Table 4 - Common Practice Commands
Command
Data in Command
Data in Reply
Contained in
No.
Function
Byte
Data
Type
(6)
Byte
Data
Type
(6)
Input
Tag
CIP MSG
