Omron CJ Series Operation Manual page 231

Initialization Errors
MS NS 7-seg-
indi- indi- ment
cator cator display
Unit number setting
H1
error
Red
The CPU Unit is
H2
defective.
Red
Hardware test error
H3
(Unit interface test)
Red
Hardware test error
H3 (Communications
Red
ASIC test)
Hardware test error
H3
(RAM test)
Red Red
Communications
H4
mode setting error
Red
The CPU Unit is
H6
defective.
Red
Not registered in Unit
H7
Configuration
Red
Insufficient CPU Unit
--- HA
memory
Red
--- Hb Event timeout
Red
--- HC Setting table error
Red
Indicators
: Lit
: Flashing
: Not lit
---: Not applicable
CJ-series CompoNet Master Unit Operation Manual for NJ-series CPU Unit (Cat. No. W493)
Error his-
Item Probable cause of error
tory (hex)
One of the following errors
occurred in the unit number
setting for the Master Unit.
• An illegal unit number was
---
set.
• A unit number already
being used for another Unit
was set.
---
An error was detected during
--- the Master Unit interface
check.
An error was detected during
--- the Master Unit communica-
tions ASIC check.
An error was detected during
---
the Master Unit RAM check.
An illegal rotary switch setting
was detected for the commu-
--- nications mode (i.e., the
switch is set to 4, 5, 6, 7, or
9).
000F
The Master Unit is not regis-
0006 tered in the Unit Configuration
in the CPU Unit.
An error response was
detected when reading the
0012
routing tables from the CPU
Unit.
A timeout was detected for a
0011 system setting read request
to the CPU Unit.
A logical error (such as an
out-of-range error) occurred
in routing tables read from the
021A
CPU Unit at initialization, or a
sum error or an error other
than a timeout was returned.
Unit operation after
error detection
The Master Unit stops
---
operating and goes into
standby mode.
After the error is
---
recorded in the error
history, the Master Unit
stops operating and
goes into standby
mode.
After the error is
recorded in the error
history, operation con-
tinues without the rout-
ing tables.
After the error is
recorded in the error his-
tory, operation contin-
ues while the interface
with the CPU Unit is
stopped.
After the error is
recorded in the error
history, operation con-
tinues without the rout-
ing table.
7 Troubleshooting
Countermeasures
Correct the unit number, and
then restart the Master Unit.
Either of the following methods
can be used to restart the Master
Unit:
1) Cycle the power supply to the
Controller.
2) Change the Special I/O Unit
Restart Flag to TRUE.
3) Execute the ResetUnit
instruction.
4) Restart the Master Unit from
the Unit Configuration in the
Sysmac Studio.
Restart the Master Unit. If the
same error occurs again, replace
the Master Unit.
If the same error occurs even
when the Unit is mounted to
another CPU Unit, replace the
Master Unit.
Correct the communications
mode setting, and then restart
the Master Unit.
Restart the Master Unit. If the
same error occurs again, replace
the Master Unit.
Create the Unit Configuration.
Restart the Master Unit. If the
same error occurs again, replace
the Master Unit.
Correct or delete the routing
table.
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