Rockwell Automation 1756-OF8H ControlLogix HART Analog I/O Modules - Manual (Page 197)

Rockwell Automation Publication 1756-UM533C-EN-P - February 2011 197
Additional HART Protocol Information Appendix C
Table 75 - HART Universal Commands
Command Data in Command Data in Reply Contained in
No. Function Byte Data Type (1) Byte Data Type (1) Input
Tag CIP
MSG
0 Read Unique
Identified None 0
1
2
3
4
5
6
7
8
9…11 254 (expansion)
Manufacturer identification code
Manufacturer device type code
Number of preambles required
Universal command revision
Device-specific command revision
Software revision
Hardware revision
Device function flags
(2)
Device ID number
(H)
(B)
x
x
x
x
x
x
x
x
x
x
1 Read primary
variable 0
1…4 PV units code
Primary variable
(F) x
x
x
2 Read current
and percent of
range None 0…3
4…7 Current (mA)
Primary variable % (F)
(F) x
x x
x
3 Read current
and four
(predefined)
dynamic
variables None 0…3
4
5…8
9
10…13
14
15…18
19
20…23 Current (mA)
PV units code
Primary variable
SV units code
Secondary variable
TV units code
Third variable
FV units code
Fourth variable
(3)
x
x
x
x
x
x
x
x
x
x
x
x
x
6 Write polling
address 0 Polling address As in command
11 Read unique
identifier
associated with
tag 0…5 Tag (A) 0…11
12 Read message None 0…23 Message (32 characters) (A) x
13 Read tag,
descriptor, date 0…5
6…17
18…20 Tag (8 characters)
Descriptor (16 characters)
Date (A)
(A)
(D) x
x
x
14 Read PV sensor
information 0…2
3
4…7
8…11
12…15 Sensor serial number
Units code for sensor limits and min span
Upper sensor limit
Lower sensor limit
Min span (B)
(F)
(F)
(F)
15 Read output
information 0
1
2
3…6
7…10
11…14
15
16 Alarm select code
Transfer function code
PV/range units code
Upper range value
Lower range value
Damping value (seconds)
Write-protect code
Private-label distributor code
(F)
(F)
(F)
x
x
x
x
x
x
16 Read final
assembly
number None 0…2 Final assembly number (B) x