Mitsubishi L26CPU-BT, User Manual

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15 TROUBLESHOOTING
15.2 List of Problems
15.2.1 When disconnecting a slave station
(1) Problems on slave station disconnection (when creating a new CC-
Link system or modifying the existing system)
Description of problem Check item Check contents Check procedure Corrective action
A1-2 Transmission speed
Is the setting within the
transmission speed setting
range?
Do the settings of the master
station and slave stations differ
from each other?
Check the setting of the
transmission speed for each
station.
Set the transmission speed
properly.
A1-3 Mode
Is the master station in other than
online mode? Check the mode setting of the
master station.
Set the online mode.
Check the contents of the
network parameters for the
programmable controller CPU of
the master station.
Check the station number
(SW0061), transmission speed
(SW005B) and mode (SW0060)
settings.
•
Are the network parameters
(such as unit number or
station information) correct?
•
Is some error occurring at the
master station?
•
Network parameter of the GX
Works2
Check SW0068, SW0069,
SW0070, SW0071, SW0072,
SW0074 to SW0077, SW0098 to
SW009B, SW009C to SW009F
and SW0144 to SW0147.
Set the network parameter
properly.
Execute the memory format of
the programmable controller CPU
and then write the network
parameter.
A1-4 Parameter setting
Is not the setting wrong?
(Automatic CC-Link startup)
Check if any value is set to the
intelligent function module switch
setting. Disable the intelligent function
module switch settings in GX
Works2.
Is there any disconnection, short-
circuit, incorrect wiring, faulty
connection, or status out of
specifications (transmission
distance, distance between
stations, transmission cable,
coexistence of different cables or
FG connection)?
Check if the cable between the
master station and slave station is
not disconnected.
Connect the cable properly.
A1-5 Cables
Are the terminating resistors
connected?
Check if the terminating resistors
are connected to the both
terminals of the CC-Link system. Connect the terminating resistors
to the both terminals of the CC-
Link system.
Is the programmable controller
CPU in the RESET status? (when
setting the network parameter) Check if the RESET switch of the
programmable controller CPU is
not at the RESET position.
Set the RESET switch to the
center position.
Unable to link the
entire system.
A1-6 Link start
Does CC-Link startup
automatically?
Check if any value is set to the
intelligent function module switch
setting. Disable the intelligent function
module switch settings in GX
Works2.
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