Profibus pa redundancy setup, Hardware – Rockwell Automation 1788-EN2PAR EtherNet/IP and ControlNet to PROFIBUS PA Linking Device User Manual User Manual
Page 36
36
Rockwell Automation Publication 1788-UM058B-EN-P - September 2014
Chapter 2
Set Up in the Studio 5000 Logix Designer Application
PROFIBUS PA Redundancy
Setup
The linking device provides PROFIBUS PA and Ethernet architectures. This
section describes the PROFIBUS PA redundancy options that are available, and
highlights the benefits and sets required to implement them.
Hardware
This section describes the hardware redundancy for media and master devices.
Media Redundancy
For media redundancy, you can select from dual trunk or ring redundant media
architecture. When selecting the architecture, select the correct setup in the
linking device AOP. See
for more details. Here are examples
of dual trunk and ring architectures.
Figure 2 - Dual Trunk Media Redundancy
Figure 3 - Ring Media Redundancy
IMPORTANT
To create the redundant media architecture, use the 1788-PARJB junction box.
IMPORTANT
When using dual trunk redundancy, the total difference in cable length
between trunk cable A and trunk cable B must not exceed 250 m (820 ft). This
applies even when using multiple junction boxes.