User Manual

Form 1588 (09.14) ©SOR Inc. 
9/24
HART 
Command
Description
Command Data Command Reply Data
Byte Description Byte Description
0
(cont)
Read unique 
identifier
Read only
14-15 Configuration change counter
16 Extended field device status
17-18 Manufacturer ID
19-20 Private label distributor code
21 Device profile
1
Read primary 
variable
Read only
0 PV units code
1-4 PV
2
Read current/
voltage and 
percent of 
range
Read only
0-3 Current (mA) or voltage (V)
4-7 Percent of range
3
Read dynamic 
variables and 
loop current
Read only
0-3 "Current (mA) or voltage (V)
4 PV units code
5-8 PV
9 SV units code
10-13 SV
14 TV units code
15-18 TV
19 FV units code
20-23 FV
6
Write polling 
address
0 Polling address 0 Polling address
1 Loop Current Mode 1 Loop Current Mode
7
Read loop 
configuration
Read only
0 Polling address
1 Loop Current Mode
8
Read dynamic 
variable class
Read only
0 PV class
1 SV class
2 TV class
3 FV class
9
Read device 
variables with 
status
0
Device variable 
code slot 0
0 Slot 0: Device variable code
1
Device variable 
code slot 1
1 Slot 0: Device variable class
2
Device variable 
code slot 2
2 Slot 0: Units code
3
Device variable 
code slot 3
3-6 Slot 0: Device variable value
4
Device variable 
code slot 4
7 Slot 0: Device variable status
5
Device variable 
code slot 5
8 Slot 1: Device variable code 










