No PROFINET
communication
PROFINET I/O
communication cannot
be established. The
“Network Status” LED is
not solid green.
• Confirm that the card’s PROFINET device name matches the
name assigned in the controller’s configuration.
• Confirm that the card’s network settings match the settings
assigned in the controller’s configuration.
• Confirm that the I/O cycle update time is set to 1ms or larger.
• Ensure that the card is connected to a 100Mbps full duplex
capable switch.
• Ensure that the card can be discovered using the controller’s
Unable to control the
inverter via network
communications
Cannot write to
command parameters
via network
communications, or
writing to these
parameters has no
apparent effect
• Set the inverter to NET mode. The inverter will reject all
command and parameter write requests from the network if it
is not in NET mode. Refer to section 3.2.
• If using the inverter’s terminal contacts, refer to the inverter’s
instruction manual to determine the appropriate behavior and
priority
• Clear all parameter settings to default and reconfigure the
XML socket
connection failed
Message on web server
tab information window
TCP port 843 is blocked by a firewall, router or some other
intermediate network equipment.
content not loading
after web server
Old web server content
is displayed
The internet browser has cached the old web server content. Clear
the internet browser’s cache before attempting to load the new
web server content.
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