Mitsubishi FX2N-16CCL-M User Manual page 176

FX2N-16CCL-M CC-Link System Master Block
Trouble description
Data link cannot
be stopped.
Data link cannot
be restarted.
Parameters cannot
be registered to
the EEPROM.
A remote station
cannot start up.
Faulty stations
cannot be
detected.
Faulty stations
occur depending
on the
transmission
speed.
Details to be checked
Is the data link stop (SB0002) ON?
Has an error occurred?
Is the data link stop (SB0000) ON?
Has an error occurred?
Is the write request for parameter
registration to EEPROM (BFM# A
ON?
Has an error occurred?
Are the settings consistent between the
station information (parameter) and the
remote station?
Does the station number overlap with
another module?
Are stations specified as error invalid
ones?
Does the station number overlap?
Can faulty stations be detected by the
communication status in other stations
(SW0080)?
Is normal communication established
when the transmission speed is slowed
(to 156 kbps, for example)?
Confirmation method
Confirm the sequence program.
Check the data link stop result
(SW0045).
Confirm the sequence program.
Check the data link restart result
(SW0041).
b10)
Confirm the sequence program.
H
Check the EEPROM registration status
(SW00B9).
Confirm the contents of the parameters.
Check the station number setting
switch.
Confirm the contents of the parameters.
Check the station number
• Check the switch settings in the
faulty station.
• Check whether the cable wiring is
correct.
• Check whether the cable shield is
grounded.
Troubleshooting 13
13-4