YASKAWA CC-Link SI-C3 Installation Manual page 59

L.RUN SD
○ ×
○ ×
○ ×
× ○
× ○
× ○
× ○
× ×
× ×
× ×
× ×
× ×
○ ○
YASKAWA TOEP C730600 83A CC-Link Installation Manual
RD L.ERR
○ × No station address received
× □ Problem with the hardware
× × Problem with the hardware
A response was received after
polling, but a CRC error
○ □
occurred when the reflex data
was checked.
○ × Problem with the hardware
× □ Problem with the hardware
× × Problem with the hardware
CRC errors occurs when the
○ □
station address is checked.
• No station address
• Cannot receive station
○ ×
address due to electrical noise
interference
× □ Problem with the hardware
Data cannot be received (CC-
× × Link communications cable may
be disconnected)
The station address or
＊ ○ communications speed is set
incorrectly.
The station address or
communications speed was
○ □
changed without cycling power
afterwards.
Cause
Check the PLC program and the
operation where the problem
occurred.
• Try cycling the power.
• Try cycling the power.
Remove the source of electrical
noise interference.
• Try cycling the power.
• See if the master device is
• Try cycling the power.
• Try cycling the power.
Remove the source of electrical
noise interference.
Remove the source of electrical
noise interference.
• Try cycling the power.
Check the wiring.
Enter the proper settings and
cycle power.
• Return any incorrect settings
• Enter the proper settings and
9 Troubleshooting
Possible Solutions
Replace the CC-Link Option
if the problem continues.
Replace the CC-Link Option
if the problem continues.
Replace the CC-Link Option
if the problem continues.
actually set to function as a
remote device station.
Replace the CC-Link Option
if the problem continues.
Replace the CC-Link Option
if the problem continues.
Replace the CC-Link Option
if the problem continues.
to their original values and
cycle power.
cycle power.
59