Rockwell Automation 1794-OF8IH FLEX Isolated Input/Output HART Analog Modules - Manual (Page 43)

31 Publication 1794-UM065B-EN-E - September 2010
Chapter
5
1794-IF8IH and 1794-OF8IH Configuration
Overview This chapter explains how to configure your FLEX I/O module. Use RSLogix
programming software to install and configure your HART module. This
chapter describes how to configure your HART analog I/O modules, but is
limited to a relatively brief explanation of how to use the software. For more
information on the full capabilities of the software, see the software's online
help by clicking Help from dialogs.
See the table for a list of where to find specific information in this chapter.
Data Transfer Types The module will make use of three data transfer modes that will be supported
by the FLEX I/O Adapter.
The first mode is traditional real time data transfer called Cyclic Data Transfer
(CDT). This class 1 connection transfers a continuous block of 16 words
maximum, composed of Input, Output, and Configuration registers. CDT will
be used for standard Analog data transfers and is described in
1794-IF8IH
I/O Profile and Configuration Parameters below.
The second mode of data transfer makes use of the Cyclic EDT mode. Cyclic
EDT will be used for continuous Class 1 transfer of HART data. This includes
the first four dynamic HART Data variables, along with standard HART status
information.
Topic Page
Data Transfer Types 31
Real Time Data (RTD) Profile, Primary Input Parameters 45
Real Time Data (RTD) Profile, Primary Status Parameters 46
Secondary Input Data Table, Cyclic EDT Input Data 52
Interpret the Status Indicators 57
Module Configuration for the 1794-OF8IH 57
Real Time Data (RTD) Profile, Status Parameters 70
Real Time Data (RTD) Profile, Output Parameters 73
Secondary Input Data Table, Cyclic EDT Input Data 75
Status Indicators 75
Chapter Summary 76