Rockwell Automation 1756-OF8H ControlLogix HART Analog I/O Modules - Manual (Page 92)

92 Rockwell Automation Publication 1756-UM533C-EN-P - February 2011
Chapter 7 Configure the Modules with RSLogix 5000 Software
HART Configuration
The Input Data formats on the General tab let you access HART field device data
through automatic collection of the HART Field Device Process Variables and
Health information.
You can also access HART field device data with pass-through messages. See
Getting HART Data By Using CIP MSG on page 121 and HART Modules
Used with Asset Management Software on page 141 for more information.
Table 20 shows which configuration options provide HART data in the input tag
and which provide pass-through message access.
Even if you are not enabling HART on all channels, the Analog and HART PV
input tag includes space for the data, but it will be marked with a HARTFault to
indicate it is not valid. This lets you add HART instruments later without
disturbing the tag layout.
Table 20 - HART Data Configuration Options
Input Data Format Enable HART Checkbox HART Data Input Tag Present? Pass-through Message Access for
MSG or Asset Management
Analog only Not checked No No
Checked Yes
Analog and HART PV Not checked Fields present in tag, but data for
this channel not valid No
Checked Yes Yes
Analog and HART by Channel Not checked Fields present in tag, but data for
this channel not valid No
Checked Yes Yes