An error
occurred
Basic
troubleshooting
steps
done
CPU module error
or modules error
ERROR L ED O N
ERROR L ED b linking
normally
(every 0 .5 sec.)
ERR OR LED blink ing
slowly (every 1 sec. ,
stop for 3 sec.)
Other LED blinking
Refer to section 12 1 1 for. .
Basic troubleshooting steps
Yes
No
1. Refer to section 1 2.1.4 f or the s ystem log
2. Refer to section 1 2.4 f or error codes and
L ED indicators for CPU modules
3. Refer to section 1 2.3 f or troubleshooting f or
I/O modules
Yes
No
No
Yes
No
Yes
Yes
No
Yes
Yes
No
CPU module
error
Module
error
ERROR L ED b linking
fast
(every 0 .2 sec.)
After going t hrough
troubleshooting s teps,
the issues a re s till not
resolved.
No
The system runs normally.
1. Refer to section 1 4 for the system log 1 2. .
2. Refer to section 1 2.4 f or error codes and
L ED indicators for CPU modules
3. Refer to section 1 2.2 f or troubleshooting f or
CPU modul es
1. Refer to section 1 4 for the system log 1 2. .
2. Refer to section 1 2.4 f or error codes and
L ED indicators for CPU modules
3. Refer to section 1 2.2 f or troubleshooting f or
CPU modul es
1. Refer to section 12 1 4 for the system log. .
2. Refer to section 1 2.4 f or error codes and
L ED indicators for CPU modules
3. Refer to section 1 2.2 f or troubleshooting f or
CPU modul es
1. Refer to section 1 4 for the system log 1 2. .
2. Refer to section 1 2.4 f or error codes and
L ED indicators for CPU modules
3. Refer to section 1 2.2 f or troubleshooting f or
CPU modul es
1. Refer to section 1 4 for the system log 1 2. .
2. Refer to section 1 2.4 f or error codes and
L ED indicators for CPU modules
3. Refer to section 1 2.2 f or troubleshooting f or
CPU modul es
If the p roblem persists, please c ontact
support.
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