Connection Troubleshooting - GE RX3i PROFINET User Manual

Connection Troubleshooting

6.4
A PROFINET IO-Device can be challenging to troubleshoot if a connection to the PROFINET IO-Controller
will not establish. Below are some suggestions of possible things to consider:
• Verify the network cabling. Scan the network using both the DCP and Explore PROFINET Networks
tools in Proficy Machine Edition. The PROFINET IO-Controller and PROFINET IO-Devices should appear
in both tools.
• Verify the spelling of a Device Name in the DCP return value from the IO-Device versus the
corresponding Device Name in the PROFINET Controller configuration. Verify the PROFINET
IO-Controller configuration matches the configuration actually active in the IO-Controller.
• Simplify the configuration. Extra, unconfigured modules are generally not an error in PROFINET, so a
simpler configuration might connect.
• Invalid configurations will be rejected. For example, disabling all Ethernet ports would lead to
significant problems, so the connection with such a configuration is rejected outright. Simplifying the
configuration back to defaults can help isolate problem areas and settings.
• PROFINET configuration occurs using the Ethernet IP settings. If an IO-Device cannot be PINGed from
the PROFINET IO-Controller's network location, the problems are more likely to exist in the network or
in the DCP settings for the IO-Device (i.e. the IO-Device has an incorrect Device Name or no IP Address)
than in the IO-Device configuration.
• Verify the MRP Ring ports selected. If MRP is configured to use Ethernet ports that are not available,
then the connection will fail. This may be an MRP Ring port configured for a removable port (SFP) that
is not present, or an MRP Ring port configured for a removable port (SFP) that is malfunctioning.
Disabling MRP Client during debugging may help identify SFP problems.
GFK-2737F December 2016
Chapter 6. Diagnostics
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