418 Rockwell Automation Publication 1783-UM007G-EN-P - February 2017
Chapter 9 Troubleshoot the Switch
Troubleshoot the Installation
The status indicators on the front panel provide troubleshooting information
about the switch. They show power-on self-test (POST) failures, port
connectivity problems, and overall switch performance. You can also get
statistics from the browser interface, the command-line interface (CLI), or a
Simple Network Management Protocol (SNMP) workstation.
Switch POST Results
As power is applied to the switch, it begins the POST, a series of tests that runs
automatically to help ensure that the switch functions properly. It can take
several minutes for the switch to complete POST.
POST starts with status indicator tests that cycle once through the EIP Mod,
EIP Net, Setup, Pwr A, and Pwr B status indicators. While POST proceeds,
the EIP Mod status indicator blinks green, and all other status indicators
remain off.
If POST completes successfully, the Setup status indicator changes to solid
green, and the other status indicators display their normal operating status. If
the switch fails POST, the Setup status indicator turns red.
POST Results with a Terminal
If you have a terminal that is connected to the console port, you can also view
POST status and test results on the terminal. If the terminal displays unclear
characters, try resetting the terminal-emulation software to 9600 bits per
second.
ATTENTION: POST failures are fatal to the switch. Contact your Rockwell
Automation technical support representative if your switch does not pass
POST.
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