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10 TROUBLESHOOTING
10.4 Troubleshooting by Symptom
A CC-Link IE TSN Class A device does not perform data link.
When "Not to Use TSN HUB" is set
When "TSN HUB Setting" in "Connection Device Information" under "Basic Settings" is set to "Not to Use TSN HUB", check
the following.
When "Use TSN HUB" is set
When "TSN HUB Setting" in "Connection Device Information" under "Basic Settings" is set to "Use TSN HUB", check the
following.
Check item Action
Is a CC-Link IE TSN Class B device connected to a CC-Link IE TSN Class A
device via an industrial switch (for CC-Link IE TSN Class B)?
• Set "TSN HUB Setting" in "Connection Device Information" under "Basic
Settings" to "Use TSN HUB".
• Connect the CC-Link IE TSN Class B device and CC-Link IE TSN Class A
device directly. Alternatively, connect them via an industrial switch (for CC-
Link IE TSN Class A).
Is an industrial switch (for CC-Link IE TSN Class B) used for connection
between CC-Link IE TSN Class B devices?
• Set "TSN HUB Setting" in "Connection Device Information" under "Basic
Settings" to "Use TSN HUB".
• Do not use an industrial switch (for CC-Link IE TSN Class B) for connection
between CC-Link IE TSN Class B devices.
Check item Action
Are a CC-Link IE TSN Class B device and CC-Link IE TSN Class A device
connected directly or via an industrial switch (for CC-Link IE TSN Class A)?
• Set "TSN HUB Setting" in "Connection Device Information" under "Basic
Settings" to "Not to Use TSN HUB".
• Connect the CC-Link IE TSN Class B device and CC-Link IE TSN Class A
device via an industrial switch (for CC-Link IE TSN Class B).
• Connect the master station and CC-Link IE TSN Class A device directly or
via an industrial switch (for CC-Link IE TSN Class A).
• Ensure that the total cyclic data size of all device stations on the CC-Link IE
TSN Class A device side that form a boundary between CC-Link IE TSN
Class B and CC-Link IE TSN Class A devices does not exceed 2K bytes.
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