Rockwell Automation 1788-EN2PAR EtherNet/IP and ControlNet to PROFIBUS PA Linking Device User Manual - Manual (Page 40)

40 Rockwell Automation Publication 1788-UM058B-EN-P - September 2014
Chapter 2 Set Up in the Studio 5000 Logix Designer Application
A short on either bus is indicated in the Studio 5000 Logix Designer application,
or in the AOP as shown in
Figure 7 .
Figure 7 - Bus Short/Open Circuit
The PA network will keep operating, but we recommend that you remove the
short on the trunk, and use the AOP to reset the bus.
Reset the trunk on the 1788-PARJB junction box, since it will also be tripped.
IMPORTANT The linking device can only detect a short/open circuit on either of the trunks
that are connected directly to the linking device. If there is a fault between two
junction boxes, you will only see the fault by examining the junction boxes in
the field. The junction boxes will indicate a fault on either a trunk or a drop.