Mitsubishi Electric MELSEC iQ-R Series User Manual page 163

■ When the Motion module with the baseSystem version of "1.7" or earlier is used
When the Motion module with the baseSystem version of "1.7" or earlier is used, check the following.
Check item
Are 32 stations or more in total connected?
When "Connected
Device
Information" under
Are CC-Link IE TSN Class A devices in line topology?
"Basic Settings" of
the master station
is set to "Mixture of
CC-Link IE TSN
In line topology plus star topology, are CC-Link IE TSN
Class B/A or CC-
Class A devices connected in the device that is
Link IE TSN Class
connected to the master station in line topology?
A Only"
Are the master station and CC-Link IE TSN Class A
devices in line topology?
Are CC-Link IE TSN Class A devices connected to
each other?
Are a CC-Link IE TSN Class A device and an Ethernet
device in line topology?
Is a general-purpose hub in cascade connection?
Action
Check the connected device and reduce the maximum number of connectable
stations to 31 stations (master station: 1, device station: 30) or less.
• Check the connected device and do not connect the CC-Link IE TSN Class
A device in line topology.
• When connecting the CC-Link IE TSN Class B device and CC-Link IE TSN
Class A device, connect them via a general-purpose hub.
Check the connected device, and if the master station is connected in line
topology, only connect CC-Link IE TSN Class B devices.
Check the connected device, and if connecting the master station and a CC-
Link IE TSN Class A device, connect them with a general-purpose hub.
Check the connected device, and connect only one CC-Link IE TSN Class A
device to each port of a general-purpose hub.
Check the connected device and do not connect a CC-Link IE TSN Class A
device and an Ethernet device.
Check the connected device and do not connect it in cascade connection.
4.4 Troubleshooting by Symptom
4 TROUBLESHOOTING
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