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Other errors
Problem
PROFINET IO Controller Unit is
configured. Some, but not all IO
Devices exchange data.
PROFINET IO Controller Unit is
configured. All IO Device have
been in data exchange, but it
has now stopped.
PROFINET IO Controller Unit is
configured. All IO Devices are in
Data Exchange, but the output
data is not set. The input data is
correctly updated.
78
Probable cause
Network cabling is not correct.
•
IO Controller's NS LED indicator is
flashing and/or Unit's BF LED indicator
is ON or Flashing.
•
IO Controller Status 2 error flags may
provide more information (IO
Controller CIO Word n+6, bit 00 to 03,
see Note).
•
IO Controller CIO Words n+9 to n+16
show which IO Devices have
problems.
The IO Controller's configuration is not
correct:
•
IO Controller NS LED indicator is
Flashing.
•
IO Controller CIO Words n+9 to n+16
show which IO Devices have
problems.
•
Use CX-ConfiguratorFDT and DTMs to
determine IO Device diagnostics.
No power is supplied to the system. All
LED indicators on the system are OFF.
The PROFINET IO Controller Unit is in
OFFLINE mode.
•
The IO Controller's NS LED is OFF
and the MS LED is ON Red or blinking
Red.
•
A PROFINET IO interface error has
occurred: see IO Controller Status 2
error flags (IO Controller CIO Word
n+6, bit 00 to bit 03, see Note) for
details.
Verify the network installation is correct:
•
Verify all IO Devices are powered up
and functioning correctly.
•
Verify all IO Devices are correctly
connected to the network.
•
Check the cable lengths.
The IO Controller is not sending the
Provider Status Good with its Data
Exchange messaging:
•
In case Provider Status is User Bit
Controlled, the CIO bit n.12 is not set
to ON.
•
In case Provider Status is PLC Mode
Dependent, the PLC is in PROGRAM
Mode.
Correction
Verify the network installation is correct:
•
Verify all IO Devices are powered up and
functioning correctly.
•
Verify all IO Devices are correctly
connected to the network.
•
Check the cable lengths.
Verify that the configuration is correct:
•
Verify Device Name of the targeted IO
Device matches the configured device
name.
•
Verify that the IO Device parameter and
configuration settings are correct.
•
Verify no duplicate IP address exist
within the network.
•
Verify that power is supplied to the
system.
Determine the mode of the IO Controller
Unit: Check the IO Controller Status 1 Word
(CIO Word n+5, bit 00 to bit 03, see Note). If
Unit is in OFF-LINE mode:
•
Verify that the IO Controller does not use
the same Device Name or IP address as
another Unit on the network. Correct the
IO Controller Unit's Device Name or IP
address.
Network cabling is not correct.
•
IO Controller's NS LED indicator is
flashing and/or Unit's BF LED indicator is
ON or Flashing.
•
IO Controller Status 2 error flags may
provide more information (IO Controller
CIO Word n+6, bit 00 to bit 03, see
Note).
•
IO Controller CIO Words n+9 to n+16
show which IO Devices have problems.
Depending on the Provider Status Control
Setting:
•
Correct the Provider Status to Good by
setting the CIO n.12 to ON or to set the
PLC in RUN/MONITOR mode.
Section 4-3
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Troubleshooting
