Mitsubishi Electric MELSEC-Q Series User Manual page 280

Problem Check item
A2-1 Station number
Transmission
A2-2
speed
Online status
A2-3
(slave station)
A station
cannot perform
data link.
Parameter
A2-4
setting
278
Description
Is the station number correctly
set for the faulty station?
Is the transmission speed
value correctly set for the
faulty station?
Is the CC-Link interface of the
faulty station online?
• Are the network parameters
for CC-Link, such as the
number of stations and
station information,
correctly set?
• Does the master station
have no error?
• Are the network parameters
for a network other than
CC-Link correctly set?
Are the settings correct?
(Automatic CC-Link startup)
Check method
Check the station number setting.
Check the transmission speed.
Check the faulty station.
Check the network parameters of
the CPU module on the master
station using the programming
tool.
Check SW0068, SW0069,
SW0070, SW0071, SW0072,
SW0074 to SW0077, SW0098 to
SW009B, SW009C to SW009F,
and SW0144 to SW0147.
Check if values are not set in the
intelligent function module switch
setting.
Corrective action
Correct the setting.
Set the value same as
that set for other
stations.
Set it online.
Correct the network
parameter.
Format the CPU
module memory then
write the network
parameters.
Disable the intelligent
function module switch
setting of the
programming tool.
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