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12 Troubleshooting
NX-series EtherNet/IP Coupler Unit User’s Manual (W536)
12-3 Checking for Errors and Troubleshooting with Support Soft-
ware
12
12-3-2 Connection Status Codes and Troubleshooting
01 0128 Error code returned from the target:
A different data size is set for the
connection in the originator and tar-
get (data from the target to the origi-
nator).
Check the connection sizes set in the originator and target (data from the
target to the originator).
01 0203 Error code generated by originator:
The connection timed out.
Tag data link communications from the target timed out. Check the power
supply and cable wiring of the devices in the communications path,
including the target and switches. If performance has dropped due to
heavy traffic, change the performance settings. For example, increase
the timeout time or RPI setting.
01 0204 Error code generated by originator:
The connection open process timed
out.
There was no response from the target. Check the power supply and
cable wiring of the devices in the communications path, including the tar-
get and switches.
01 0205 Error code returned from target:
There was a parameter error in the
frame used to open the connection.
This error does not occur. Depends on the originator’s specifi-
cations. (Contact the originator
device’s manufacturer.)
01 0302 Error code generated by originator
or returned from target:
The tag data link’s allowable band-
width (pps) was exceeded.
Check the connection settings
(number of connections and RPI)
at the originator and target.
Check the connection settings (num-
ber of connections and RPI) at the
originator and target.
01 0311 Error code returned from target:
There was a parameter error in the
frame used to open the connection.
This error does not occur. Depends on the originator’s specifi-
cations. (Contact the originator
device’s manufacturer.)
01 0312 Error code returned from target:
There was a parameter error in the
frame used to open the connection.
This error does not occur. Depends on the originator’s specifi-
cations. (Contact the originator
device’s manufacturer.)
01 0315 Error code returned from target:
There was a parameter error in the
frame used to open the connection.
This error does not occur. Depends on the originator’s specifi-
cations. (Contact the originator
device’s manufacturer.)
01 0316 Error code returned from target:
There was a parameter error in the
frame used to close the connection.
This error does not occur. Depends on the originator’s specifi-
cations. (Contact the originator
device’s manufacturer.)
01 031C Error code generated by originator:
Some other error occurred.
This error does not occur. Depends on the originator’s specifi-
cations. (Contact the originator
device’s manufacturer.)
08 --- Error code returned from target:
There is no Forward Open or Large
Forward Open service in the target
device.
This error does not occur. Depends on the originator’s specifi-
cations. (Contact the originator
device’s manufacturer.)
D0 0001 Error code generated by originator:
The connection operation is
stopped.
The connection was stopped
because the Tag Data Link Stop
Bit was turned ON, or the set-
tings data is being downloaded.
Either turn ON the Tag Data Link
Start Switch, or wait until the set-
tings data has been downloaded.
This code includes fatal Control-
ler errors and Unit failure. To han-
dle these errors, refer to 12-1
How to Check for Errors.
Depends on the originator’s specifi-
cations. (Contact the originator
device’s manufacturer.)
D0 0002 Error code generated by originator:
The connection is being opened
(opening processing in progress).
Wait until the opening processing
is completed.
Depends on the originator’s specifi-
cations. (Contact the originator
device’s manufacturer.)
Connection status
Source of error
Handling
General
Status
(hex)
Additional
Status
(hex)
Configuration 1 Configuration 2
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