9 Troubleshooting
9.1 Troubleshooting procedure
60
FX
3U
-64CCL User's Manual
9. Troubleshooting
This chapter describes major problems that may occur during the CC-Link system construction and lists the
items to be checked and confirmed for troubleshooting.
→
For details, refer to the master unit manual.
9.1
Troubleshooting procedure
The table below lists the items to be checked and confirmed for each troubleshooting problems.
Problem
Checkpoint
Action
64CCL cannot be linked.
Is external power supply (24V) supplied?
The POWER LED display is checked.
Is there an error in the station number setting, the
number of occupied stations / expanded cyclic
setting, or transmission rate / hardware test setting?
The following description is checked.
Check the error code BFM#29 b0-b2.
Check the switch setting status (SW006A).
Check the master station setting
Can the master station carry out link stop?
The LED display of the master station is checked.
Is it a reserved station?
The setting of the master station is checked.
Is the CC-Link cable wired correctly?
Cable wiring is checked.
Master station cannot
receive data stored in the
remote inputs (RX) or
remote registers (RWr) of
the 64CCL.
Is the 64CCL performing data link?
Use the following method:
Check the LED display of the unit.
Check the station data link status of the master
station (SW0080).
Is data being written to the correct addresses of the
remote inputs (RX) or remote registers (RWr)?
Check the sequence program.
Is it a reserved station?
Check the parameters.
Are there any station numbers that are overlapped? Check the station number setting.
Master station cannot turn
ON/OFF remote outputs
(RY) of 64CCL, or cannot
write data to remote
registers (RWw) of 64CCL.
Is the 64CCL performing data link?
Use the following method:
Check the LED display of the unit.
Check the station data link status of the master
station (SW0080).
Is data being read from the correct addresses of the
remote outputs (RY) or remote registers (RWw)?
Check the sequence program.
Is it a reserved station?
Check the parameters.
Are there any station numbers that are overlapped? Check the station number setting.
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