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yy: Indicates the Slave Unit type, as shown below.
Actual
yy
display
i
o
bi
bo
r
zzz: Node address where the error occurred (2-digit decimal) (Note: The 100s digit is displayed with
dots.)
Errors in Memory Access Processing
The following indicator patterns show that an error has occurred in the Gateway Unit.
Seven-
MS
NS
segment
display
✳
E8
---
Red
✳
E9
---
Red
❍
Indicators:
: Lit,
CompoNet Gateway Unit for CC-Link Operation Manual
Slave Unit type
Input (including I/O Slaves)
OUT
Bit input
Bit output
Repeater Unit
Item
Probable cause of error
Registration
1.
The registration setting
table logic error
(REGS) is set to enable the
registration table even though
the registration table is not
enabled.
2.
The registration table is
corrupted.
Memory
One of the following errors
access error
occurred when the non-volatile
memory in the Unit was
accessed:
1.
Not all 64 records could be
used during initialization or
when registering an error in
the error history.
2.
An error history reading or
writing error occurred.
3.
An identity information
reading failure occurred
during initialization.
4.
A registration table
information reading or writing
failure occurred during
initialization.
✳
●
: Flashing,
: Not lit,
: Not applicable
---
Troubleshooting
Unit operation after error
detection
The error is registered in the
Either turn OFF the
error history.
registration setting (REGS) or
press the RESET CompoNet
setting button to restart the
Gateway Unit.
For 1) or 2):
Reset the Gateway Unit. If the
Further access to the
same error occurs again,
EEPROM is stopped. All
replace the Gateway Unit.
other normal operations
continue.
For 4):
Normal operations are
executed.
When reading for 4):
Other operations continue
without starting the
communications cycle.
When writing for 4):
Further access to the
EEPROM is stopped. All
other normal operations
continue.
5
Countermeasures
5 - 4
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Troubleshooting
