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10 TROUBLESHOOTING
10.4 Troubleshooting by Symptom
10.4 Troubleshooting by Symptom
This section describes troubleshooting by symptom. Perform the troubleshooting by symptom when a data link cannot be
performed with the target station even though no error occurs in the FX5-CCLGN-MS. If an error has occurred in the FX5-
CCLGN-MS, identify the error cause using the engineering tool. ( Page 201 Checking the Network Status)
When cyclic transmission cannot be performed
The following table lists the actions to be taken if cyclic transmission cannot be performed to the master station.
Check item Action
Is the D LINK LED of the FX5-CCLGN-MS turned on? Perform troubleshooting for when the D LINK LED turns off or is flashing.
( Page 196 When the D LINK LED turns off or is flashing)
Do the station types set in "Network Configuration Settings" of the master station
match those set for the connected device stations?
• Check 'Station type match status of each station' (SB00E8) and
'Station type match status' (SW00E8 to SW00EF) to correct the station
type of stations in which the station type does not match.
• Correct that "Network Configuration Settings" of the master station and
the actual system configuration match.
When "Connection Device Information" is set to "CC-Link IE TSN Class B Only", is
an industrial switch (for CC-Link IE TSN Class B) used?
Correct the industrial switch and its settings. For the setting method, refer
to the manual for the industrial switch used.
• For details on precautions and restrictions on the system configuration
when using an industrial switch (for CC-Link IE TSN Class B), refer to
the CC-Link Partner Association website. (www.cc-link.org)
• Correct the industrial switch delay time according to the industrial
switch used. ( Page 286 Communication cycle intervals) For the
industrial switch delay time of the industrial switch used, consult the
manufacturer.
When "Communication Speed" of the master station is set to "100Mbps", is "Basic
Settings" "Communication Period Setting" "Basic Period Setting" "System
Reservation Time" of the master station set to 20s?
Set "System Reservation Time" to 200s.
Does the IP filter setting mistakenly block communications from the IP address of
another station?
Change the IP filter setting parameter to allow communication for the IP
address of another station.
The connection device
information of the master
station is set to "CC-Link IE
TSN Class B Only".
Are CC-Link IE TSN Class A devices connected? Disconnect the CC-Link IE TSN Class A devices.
Is an industrial switch (for CC-Link IE TSN Class A)
connected between the CC-Link IE TSN Class B
devices?
Check the connected devices and remove the industrial switch (for CC-
Link IE TSN Class A) or connect the industrial switch (for CC-Link IE
TSN Class B).
The connection device
information of the master
station is set to "Mixture of
CC-Link IE TSN Class B/A
or CC-Link IE TSN Class A
Only".
For firmware version "1.002" or earlier
Are nine or more CC-Link IE TSN Class B devices
and industrial switches connected in total to each
port of the master station in the transmission path
from the master station to the CC-Link IE TSN Class
B device of the end?
Check the connected devices and reduce the number of CC-Link IE TSN
Class B devices and industrial switches to eight or less in total for each
port of the master station in the transmission path from the master station
to the CC-Link IE TSN Class B device of the end.
Is any CC-Link IE TSN Class B device other than the
master station connected in a star topology via an
industrial switch (for CC-Link IE TSN Class A)?
Other than the master station, do not connect CC-Link IE TSN Class B
devices to an industrial switch (for CC-Link IE TSN Class A) in star
topology. Alternatively, connect CC-Link IE TSN Class B devices to an
industrial switch (for CC-Link IE TSN Class B).
Is an industrial switch (for CC-Link IE TSN Class A)
connected between the master station and CC-Link
IE TSN Class B devices?
Check the connected device and connect the master station to CC-Link
IE TSN Class B devices in line topology instead of using an industrial
switch (for CC-Link IE TSN Class A).
Check the connected device and connect the master station with CC-
Link IE TSN Class B devices via an industrial switch (for CC-Link IE TSN
Class B).
For firmware version "1.002" or earlier
In multicast mode, is the CC-Link IE TSN Class A
remote station connected to the master station?
• Connect the CC-Link IE TSN Class A remote station to a local station
or remote station supporting the multicast filter.
• Set unicast mode.
In multicast mode, is the CC-Link IE TSN Class A
remote station connected to a local station or remote
station that does not support the multicast filter?
• Connect the CC-Link IE TSN Class A remote station to a local station
or remote station supporting the multicast filter.
• Set unicast mode.
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