Event code
Event
name
Meaning Assumed cause
Level
Refer-
ence
M
aj
P
rt
M
i
n
O
b
s
I
n
f
o
00200000 hex Non-vola-
tile Memo-
ry Hard-
ware Error
An error occurred
in non-volatile
memory.
• Non-volatile memory fail-
ure
¡
page
5-9
90400000 hex
Event Log
Cleared
The event log was
cleared.
• The event log was cleared
by the user.
¡
page
5-10
5-3-4
Meaning of Error
This section describes the information that is given for individual errors.
If your NX Unit is connected to a Communication Control Unit, replace CPU Unit with Communication
Control Unit in the descriptions provided for “For the NX bus of CPU Units” in the tables below
.
How to Read Error Descriptions
The items that are used to describe individual errors (events) are described in the following copy of an
error table.
Event name Gives the name of the error. Event code Gives the code of the error.
Meaning Gives a short description of the error.
Source Gives the source of the error. Source details Gives details
on the source
of the error.
Detection tim-
ing
T
ells when the
error is detect-
ed.
Error attrib-
utes
Level Tells the level of influence on
control.
*1
Log category Tells which log the error is saved
in.
*2
Recovery
Gives the recovery method.
*3
Effects User program Tells what will
happen to exe-
cution of the
user program.
*4
Operation Provides special information on the operation that
results from the error
.
Indicators Gives the status of the built-in EtherNet/IP port and built-in EtherCAT port indicators. Indicator status is
given only for errors in the EtherCAT Master Function Module and the EtherNet/IP Function Module.
System-de-
fined varia-
bles
V
ariable Data type Name
Lists the variable names, data types, and meanings for system-defined variables that provide direct error
notification, that are directly affected by the error
, or that contain settings that cause the error.
Cause and
correction
Assumed cause Correction Prevention
Lists the possible causes, corrections, and preventive measures for the error.
Attached in-
formation
This is the attached information that is displayed by the Support Software or an HMI.
*5
,
*6
Precautions/
Remarks
Provides precautions, restrictions, and supplemental information. If the user can set the event level, the
event levels that can be set, the recovery method, operational information, and other information are al-
so provided.
5 Troubleshooting
5-7
NX-series System Units User's Manual (W523)
5-3 Checking for Errors and Troubleshooting on the Support Software
5
5-3-4 Meaning of Error
To Next Page
Need help?
General
