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Initialization Errors
MS
NS
segment
❍
●
Red
❍
●
Red
❍
❍
Red
Red
✳
●
Red
❍
Indicators:
: Lit,
Exception Processing
MS
NS
segment
❍
●
Red
❍
●
Red
❍
Indicators:
: Lit,
CompoNet Gateway Unit for CC-Link Operation Manual
Seven-
Item
display
H3
Hardware test
error, CC-Link
ASIC test
H3
Hardware test
error, CompoNet
ASIC test
H3
Hardware test
error, RAM test
H4
Communications
mode setting
error
✳
●
: Flashing,
: Not lit,
---
Seven-
Item
display
Not lit
Unit-related error
Not lit
Unit WDT error
✳
●
: Flashing,
: Not lit,
---
Unit operation
Probable cause of
error
An error was
The Gateway Unit
detected while
stops operating
checking the CC-
and goes into
Link ASIC in the
standby mode.
Gateway Unit.
An error was
detected while
checking the
CompoNet ASIC in
the Gateway Unit.
An error was
detected while
checking the RAM in
the Gateway Unit.
An illegal rotary
switch setting was
detected for the
communications
mode (i.e., the switch
is set to 7, 8, or 9).
: Not applicable
Unit operation
Probable cause of
error
A hardware error
WDT refreshing is
occurred.
stopped and the
Gateway Unit
completely stops.
There was a WDT
The Gateway Unit
timeout for the Unit.
completely stops.
: Not applicable
Troubleshooting
after error
Countermeasures
detection
Replace the
Gateway Unit.
Correct the
communications
mode setting, and
then restart the
Gateway Unit.
after error
Countermeasures
detection
There may be some
noise or other
interference
occurring. Eliminate
the source of the
noise and then turn
ON the power to the
Gateway Unit again.
5
5 - 2
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Troubleshooting
