Rockwell Automation 1756-L6x_L7x ControlLogix System User Manual - Manual (Page 100)

100 Rockwell Automation Publication 1756-UM001O-EN-P - October 2014
Chapter 5 Communication Networks
The HART protocol combines digital signals with analog signals to ready the
digital signal for the Process Variable (PV). The HART protocol also provides
diagnostic data from the transmitter.
Figure 16 - HART Protocol Example
For more information about using the HART I/O modules, see the
ControlLogix HART Analog I/O Modules User Manual, publication
1756-UM533 .
For more information about the ProSoft HART interface, see the
ProSoft Technologies website at http://www.prosoft-technology.com .
• ControlLogix
• 1756-IF8H or
• 1756-OF8H
HART Field Devices