
AW T 210
H A R T 2- W I R E T R A N SM I T T ER | CO M/AW T 2 10/H A R T- EN R E V. B
9
5 Appendix
Introduction
This appendix contains descriptions of the HART commands
available through the HART universal, common practice and
device specific command sets.
Device-specific command details such as data bytes and
response codes are described in the AWT210 HART field device
specification (
)
Supported HART commands
The following HART Commands are supported on the AWT210.
Universal HART commands
Command
Description
3
Read Dynamic Variables And Loop Current
PV,SV,TV
and QV14
1
14
Read Primary Variable Transducer Information
Table 1 Universal HART commands
Common practice HART commands
Command
Description
34
Write PV Damping Value
*
35
Write PV Range Values
*
36
Set PV Upper Range Value
*
37
Set PV Lower Range Value
*
40
Enter/Exit Fixed Current Mode
*
41
Perform Self-Test
*
42
Perform Device Reset
*
44
Write PV Units
*
45
Trim Loop Current Zero
*
46
Trim Loop Current Gain
*
48
Read Additional Device Status
59
Write Number of Response Preambles
*
71
Lock Device
*
76
Read Lock Device State
*Requires HART login (Command 168) to Advanced level or higher if HART login is enabled
via Configuration -> Advanced-> Device Setup -> Security -> HART Login -> Enabled
Table 2 Common practice HART commands
1
AWT does not support device variables, only dynamic variables. Hence,
Command 9 returns a response code of 14 (Dynamic Variables returned for
Device Variables) as required by the HART specification. However, this return
value is seen as an error by Simatic PDC software. This response code may
be turned off in the device by enabling PDM compatibility at the following
menu: Device Setup > PDM Compatibility > Enable.
Device-specific HART commands: general
Command
Description
122
Login to Service Level
123
Read Board Object
*
124
Write Object
*
125
Read Memory
*
126
Write Memory
*
128
Reset Software Write Protection
129
Read Revision
130
Write Current Alarm Selection
131
Read Write Protection
132
Write Software Write Protection
134
Recognize Temperature Compensation Type
135
Reset to Factory Default
136
Write Temperature Compensation Type
137
Read Front End Board Data
138
Write Manual Temperature Setpoint
139
Write Reference Temperature
140
Read PV and Temperature Calibration Slope and Offset
141
Write PV Calibration Slope and Offset
142
Write Temperature Calibration Slope and Offset
143
Log Out HART Service Code
168
HART Login with Password
2
200
Read Diagnosis Masking
201
Write Diagnosis Masking
202
Read Diagnosis Simulation
203
Write Diagnosis Simulation
210
Write HART Version
243
Write Sensor Diagnostic Option
249
Write Temperature Unit
250
Read Conductivity Units Mode
251
Write Conductivity Units Mode
253
Read Condensed Status Mapping Array
*Requires HART Login to Service Level (Command 122)
Table 3 Device-specific HART commands: general
2
HART commands that write to the device can be protected with access
control. This is similar to the access control within the device that has
Read Only, Calibrate, Advanced
and
Service
levels.
Access control for HART can be enabled at the following menu:
Device Setup > Security Setup > HART Logging > Password Protected.
If this option is enabled, the user will have to log in with the appropriate
access level password before sending write commands to the device. Please
see details of command 168 in the HART Field Device Specification
document for AWT210.