14-4
Checking with the Sysmac Studio, an
HMI, and Instructions That Read Error
Status
You can check for current Controller errors in the NX-series EtherNet/IP Unit, a log of past errors, error
sources, error causes, and corrections with the Sysmac Studio, HMI, and instructions that read error
status.
Refer to Checking with the Troubleshooting Function of Sysmac Studio, Checking with the
Troubleshooter of an HMI, and Checking with Instructions That Read Error Status in the NJ/NX-series
Troubleshooting Manual (Cat. No. W503) for details on how to use each of the above.
The following describes the errors in the X Bus Ethernet Function Module and the X Bus EtherNet/IP
Function Module, which are the communications errors that occur in the NX-series EtherNet/IP Unit.
The definitions of the X Bus Ethernet Function Module and the X Bus EtherNet/IP Function Module
are as follows.
Function module Definition
X Bus Ethernet Func-
tion Module
A function module that performs Ethernet functions of the X Bus Unit other than the
EtherNet/IP function.
With the NX-series EtherNet/IP Unit, a function module that performs TCP/IP or SNMP
agent.
X Bus EtherNet/IP
Function Module
A function module that performs EtherNet/IP function of the X Bus Unit.
With the NX-series EtherNet/IP Unit, a function module that performs tag data links or
CIP message communications.
Additional Information
The function modules related to the X Bus Unit other than the above include the X Bus Function
Module and the X Bus Unit Common Function Module. The definitions of each module are giv-
en in the following table.
Function module Definition
X Bus Function
Module
A function module that manages the status of X Bus Unit which is connected to the
X Bus of CPU Unit and also performs the processing of I/O refresh with the X Bus
Unit, etc. as an X Bus master.
X Bus Unit Com-
mon Function
Module
A function module of the X Bus Unit that manages the X Bus Unit common informa-
tion, i.e. total power ON time and unit version, etc., the event log of X Bus Unit, and
the status, and also performs the processing of I/O refresh with the CPU Unit, etc.
Refer to Errors in the X Bus Function Module in the NJ/NX-series Troubleshooting Manual (Cat.
No. W503)
for details on errors in the X Bus Function Module.
Refer to Errors in the X Bus Unit Common Function Module in the NJ/NX-series
Troubleshooting Manual (Cat. No. W503) for details on errors in the X Bus Unit Common Func-
tion Module.
14-4-1
Types of Communications Errors
The communications errors that occur in the NX-series EtherNet/IP Unit are classified by the source
as follows.
14 Troubleshooting
14-6
NX-series EtherNet/IP Unit User's Manual (W627)