Allen-Bradley ControlLogix Manuel d'utilisateur Page 100

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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
ProSoftTechnologies
website at http://www.prosoft-technology.com.
ControlLogix
1756-IF8H or
1756-OF8H
HART Field Devices
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