Mitsubishi Electric MELSEC iQ-R Series User Manual page 368

Check item
Are 121 or more slave stations connected?
Do CC-Link IE TSN devices, Ethernet devices, and
EtherNet/IP devices coexist on the same network
line?
Is the IP address of the slave station blocked by the
IP filter setting of the master station?
Is the IP address of the master station blocked by
the IP filter setting of the slave station?
Are time synchronization devices with time
synchronization priority of 0 to 15 connected?
Is the connected NZ2MHG-TSNT operating
normally?
When the L ER LED turns on
When the L ER LED turns on, check the following.
Check item
Are the Ethernet cables used normally?
Is the switching hub used operating normally?
Is there any source of noise near the module or
cables?
Is the module operation mode setting of the master
station set to "Online"?
When the LINK LED turns off
When the LINK LED turns off, check the following.
Check item
Do the used Ethernet cables conform to the
Ethernet standard?
Does the station-to-station distance meet the
specifications?
Does the cabling condition (bending radius) meet
the specifications?
Is any Ethernet cable disconnected?
Is the switching hub used operating normally?
Are other stations connected to the CC-Link IE TSN
Plus module operating normally?
Does the communication speed of the connected
device match the communication speed set in
"Communication Speed"?
If "Communication Speed" is set to 100Mbps for the
master station and local station to connect a device
with a communication speed of 100Mbps, is the
auto-negotiation of the device valid?
15 CHECKING WITH LED
366
Action
Change the connection of the slave stations to 120 stations or less.
Correct the mixed structure of the Ethernet device. ( Page 26 CC-Link IE TSN SYSTEM
CONFIGURATION)
Correct the "IP Filter Settings" under "Application Settings". ( Page 88 IP Filter Settings)
Remove time synchronization devices with time synchronization priority of 0 to 15, or change the priority
setting to between 16 and 255. ( Manual for the time synchronization devices used)
Power off and on the NZ2MHG-TSNT.
Set the parameters for the NZ2MHG-TSNT as follows.
• Enable each port of the NZ2MHG-TSNT.
• Set the communication speed and port type to Auto.
• Match the settings of the time synchronization and communication cycle of the NZ2MHG-TSNT to
those of the master station.
• Match the VLAN setting of the master station to the VLAN setting of the slave station.
For the setting method, refer to the following.
 CC-Link IE TSN Industrial Managed Switch User's Manual
Action
• Use an Ethernet cable that conforms to the standard. ( Page 71 Wiring products)
• Set the station-to-station distance within range. ( Page 60 Performance Specifications of CC-Link
IE TSN)
• If the Ethernet cable is disconnected, reconnect it.
• Use a switching hub that conforms to the standard. ( Page 72 Switching hub (when the system
configured with CC-Link IE TSN))
• Power off and on the switching hub.
Change the location of the module or cables.
Set "Module Operation Mode" under "Application Settings" of the master station to "Online". ( Page
87 Module Operation Mode)
Action
Replace the cables with Ethernet cables which conform to the standard. ( Page 71 Wiring products)
Set the station-to-station distance within range. ( Page 60 Performance Specifications of CC-Link IE
TSN)
Refer to the manual for the Ethernet cable, and correct the bending radius.
Replace the Ethernet cable.
• Use a switching hub that conforms to the standard. ( Page 72 Switching hub (when the system
configured with CC-Link IE TSN))
• Power off and on the switching hub.
Check the manual of the module used for the other stations and take action accordingly. ( User's
manual for the module used)
Connect the device with the communication speed set in "Communication Speed".
Enable the auto-negotiation of the connected device. Or, connect a device with auto-negotiation
enabled.