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152 Rockwell Automation Publication 2080-UM002N-EN-E - November 2022
Chapter 8 EtherNet/IP Network
0x0118
Module Configuration Rejected:
Format error.
An invalid configuration format was used.
Possible causes include the following:
• The configuration class that is specified does not match
the class that is supported by the module.
• The connection instance is not recognized by the module.
• The path that is specified for the connection is
inconsistent.
• The module in use (that is, the physical module) is
different than the module specified in the I/O
configuration tree and is therefore causing the
connection or service to fail.
• The fault may occur even when the module passes the
electronic keying test. This may result when Disable
Keying or Compatible Keying options were used in the
module configuration instead of the Exact Match option.
• Despite passing the electronic keying test, the module
being connected to does not have the same features or
settings as the module specified in the I/O configuration
tree and does not support the connection or service being
attempted.
Check the module in use and verify that it exactly matches
the module that is specified in the application. For more
information about electronic keying, see the user manual
for the module you are using.
0x0119
Connection Request Error:
Module not owned.
The controlling connection is not open.
Where a Listen Only connection is requested, the controlling
connection is not open.
0x011A
Connection Request Error:
Out of Connection Resources.
The controller is attempting to set up a connection with the
module and cannot because required resources are
unavailable.
• If the module is a 1756 ControlNet module, up to five
controllers can make Rack Optimization connections to
the module. Verify that this number has not been
exceeded.
• If the module is a 1794-ACN15, 1794-ACNR15, or
1797-ACNR15 adapter, only one controller can make a Rack
Optimization connection to the module. Verify that this
number has not been exceeded.
0x0127
Connection Request Error:
Invalid output size.
The controller is attempting to set up a connection with the
module and cannot because the output packet size is
invalid.
If generic Ethernet module is being used, check if the output
size is correct and expected by the target device.
0x0128
Connection Request Error:
Invalid input size.
The controller is attempting to set up a connection with the
module and cannot because the input packet size is invalid.
If generic Ethernet module is being used, check if the input
size is correct and expected by the target device.
0x0203 Connection timed out.
The owner or originator recognizes that the target device is
on the network or backplane. However, I/O data and
messages are not being responded to.
The target can be reached, but its response is not as
expected. For example, this fault may be indicated where
multicast Ethernet packets are not returned.
When this fault occurs, the controller usually attempts to
continuously remove and remake the connection. If you use
FLEX I/O modules, verify that you are using the correct
terminal device.
0x0204
Connection Request Error:
Connection request timed out.
The controller is attempting to make a connection; however,
the target module is not responding. The device also
appears to be missing from the backplane or network.
To recover, take the following steps.
• Verify that the module has not been removed and is still
functioning and receiving power.
• Verify that the correct slot number has been specified.
• Verify that the module is properly connected to the
network.
• If you are using FLEX I/O modules, verify that the correct
terminal block is used.
0x0205
Connection Request Error:
Invalid parameter.
The controller is attempting to set up a connection with the
module and has received an error (a parameter is in error).
Possible causes include the following:
• The module in use (that is, the physical module) is
different than the module specified in the I/O
configuration tree and is therefore causing the
connection or service to fail.
• The fault may occur even when the module passes the
electronic keying test. This may result when Disable
Keying or Compatible Keying options were used in the
module configuration instead of the Exact Match option.
• Despite passing the electronic keying test, the module
being connected to does not have the same features or
settings as the module specified in the I/O configuration
tree and does not support the connection or service being
attempted.
Check the module in use and verify that it exactly matches
the module that is specified in the application. For more
information about electronic keying, see the user manual
for the module you are using.
Table 25 - List of Connection Fault Codes (Continued)
Fault Code Display Text Fault Corrective Action