![background image](http://html1.mh-extra.com/html/omron/cj1w-drm21/cj1w-drm21_operation-manual_742341234.webp)
9 Troubleshooting and Maintenance
9-4
CJ-series DeviceNet Units Operation Manual for NJ-series CPU Unit(W497)
*1
The 7-segment indicator will alternate between the Unit's node address and the code given in the tables in this section.
*2
The most common causes of Unit status errors during settings switch operations are listed below:
•
The master was stopped and a software switch operation relating to the master function was performed. (This does not
include the master enable switch operation.)
•
The scan list was enabled and a software switch operation was performed that can only be performed while the scan list
is disabled. (Scan list enable and fixed allocation setting operations)
•
The scan list was disabled and a software switch operation was performed that can only be performed while the scan
list is enabled. (Clear scan list and Backup Unit settings file operations)
•
The slave was stopped and a software switch operation relating to the slave function was performed. (This does not
include the slave enable switch operation.)
9-1-2
Troubleshooting Errors Occurring in the DeviceNet Unit
Indicators
Error
category
Error
Likely cause
DeviceNet Unit
response
Error
log
(Hex)
MS
NS
7-seg-
ment
*1
-
-
A0
Master
function
Remote
I/O com-
munica-
tions
stopped by
a commu-
nications
error
Pin 3 on the master's DIP
switch is set to stop com-
munications in the event of
a communications error
and communications have
been stopped due to a
remote I/O communica-
tions error, network power
supply error, or transmis-
sion timeout.
•
Remote I/O communica-
tions as a master will
stop. Remote I/O com-
munications as a slave
and message communi-
cations will continue.
•
Records the error in the
error log.
0346
-
-
C0
Software
settings
errors
CPU Unit
status error
The software switch opera-
tion couldn't be performed
because the CPU Unit
wasn't in PROGRAM
mode.
•
The only response is the
error code displayed on
the 7-segment indicator.
•
The error display will be
cleared the next time
that a software switch
operation is completed
normally.
-
-
-
C2
Unit status
error
The software switch opera-
tion failed because the
Unit could not perform the
requested process in its
current status.
*2
-
-
-
C4
Structure
error
The software switch opera-
tion failed because a struc-
ture error occurred.
-
Содержание CJ1W-DRM21
Страница 12: ...Manual Structure 10 CJ series DeviceNet Units Operation Manual for NJ series CPU Unit W497 ...
Страница 42: ...Revision History 40 CJ series DeviceNet Units Operation Manual for NJ series CPU Unit W497 ...
Страница 214: ...6 Message Communications 6 26 CJ series DeviceNet Units Operation Manual for NJ series CPU Unit W497 ...
Страница 345: ...Index 1 CJ series DeviceNet Units Operation Manual for NJ series CPU Unit W497 I Index ...
Страница 349: ......