5 - 4
Troubleshooting
CompoNet Gateway Unit for CC-Link Operation Manual
5-
1-
2 Tro
uble
s
hoo
tin
g Sequ
en
ce
Wh
en an
Er
ro
r Occur
s
5
yy: Indicates the Slave Unit type, as shown below.
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.
Indicators:
❍
: Lit,
✳
: Flashing,
●
: Not lit,
---
: Not applicable
yy
Actual
display
Slave Unit type
i
Input (including I/O Slaves)
o
OUT
bi
Bit input
bo
Bit output
r
Repeater Unit
MS
NS
Seven-
segment
display
Item
Probable cause of error
Unit operation after error
detection
Countermeasures
✳
Red
---
E8
Registration
table logic error
1.
The registration setting
(REGS) is set to enable the
registration table even though
the registration table is not
enabled.
2.
The registration table is
corrupted.
The error is registered in the
error history.
Either turn OFF the
registration setting (REGS) or
press the RESET CompoNet
setting button to restart the
Gateway Unit.
✳
Red
---
E9
Memory
access error
One of the following errors
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.
For 1) or 2):
Further access to the
EEPROM is stopped. All
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.
Reset the Gateway Unit. If the
same error occurs again,
replace the Gateway Unit.
Summary of Contents for GQ-CRM21
Page 1: ...OPERATION MANUAL Cat No W489 E1 01 GQ CRM21 CompoNet Gateway Unit for CC Link ...
Page 21: ...1 Overview 1 1 Overview 1 1 ...
Page 25: ...2 Description of Gateway Unit 2 1 Specifications 2 1 2 2 Component Names and Functions 2 4 ...
Page 38: ...2 13 CompoNet Gateway Unit for CC Link Operation Manual 2 2 Component Names and Functions 2 ...
Page 102: ......
