13 Troubleshooting
13-20
CJ-series EtherNet/IP Units Operation Manual for NJ-series CPU Unit (W495)
13-3 Connection Status Codes and Error
Processing
This section explains how to identify and correct errors based on the tag data link's connection status.
The connection status can be read using the Connection Tab Page of the Network Configurator's Moni-
tor Device Window. For details, refer to 13-1 Checking Status with the Network Configurator.
The following table shows the possible originator/target configurations.
The following table shows the likely causes of the errors causes for each configuration and connection
status (code).
Originator Target
Configu-
ration 1
CS1W-EIP21, CJ1W-EIP21, CJ2H-CPU@@-EIP,
CJ2M-CPU3@, NJ501-@@@@, and NJ301-
@@@@
CS1W-EIP21, CJ1W-EIP21, CJ2H-CPU@@-EIP,
CJ2M-CPU3@, NJ501-@@@@, and NJ301-
@@@@
Configu-
ration 2
CS1W-EIP21, CJ1W-EIP21, CJ2H-CPU@@-EIP,
CJ2M-CPU3@, NJ501-@@@@, and NJ301-
@@@@
Other company’s device
Configu-
ration 3
Other company’s device CS1W-EIP21, CJ1W-EIP21, CJ2H-CPU@@-EIP,
CJ2M-CPU3@, NJ501-@@@@, and NJ301-
@@@@
Connection status
Source of error
Handling
General
Status
(hex)
Additional
Status
(hex)
Configuration
1
Configuration
2
Configuration
2
00 0000 Normal status code:
The connection has been
opened and the tag data link
is communicating normally.
--- --- ---
01 0100 Error code returned from tar-
get:
Attempted to open multiple
connections at the same con-
nection.
This error does
not occur.
Depends on
the target’s
specifications.
(Contact the
target device’s
manufacturer
for details on
preventing the
error from
occurring in the
future.)
Depends on
the originator’s
specifications.
(Contact the
originator
device’s manu-
facturer for
details on pre-
venting the
error from
occurring in the
future.)
01 0103 Error code returned from tar-
get:
Attempted to open a connec-
tion with an unsupported
transport class.
This error does
not occur.
Confirm that
the target sup-
ports Class 1.
Confirm that
the originator
supports Class
1.
01 0106 Duplicate consumers:
Attempted to open multiple
connections for single-con-
sumer data.
If the tag data
link is stopped
or started, this
error may occur
according to
the timing, but
the system will
recover auto-
matically.
Depends on
the target's
specifications.
(Contact the
target device's
manufacturer.)
If the tag data
link is stopped
or started, this
error may occur
according to
the timing, but
the system will
recover auto-
matically.
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