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10 TROUBLESHOOTING
10.2 Checking the LEDs
When the D LINK LED turns off
When the D LINK LED turns off, check the following items.
Check item
Action
Is the safety remote I/O module on the network operating normally?
Connect the engineering tool to the master station, and check that the safety remote I/
O module is data-linked using the CC-Link IE TSN/CC-Link IE Field diagnostics.
User's manual for the master station used
Are Ethernet cables used compliant with the relevant standard?
Replace the cable with an Ethernet cable compliant with the relevant standard.
User's manual for the master station used
Is the station-to-station distance 100m or less?
Change the station-to-station distance to 100m or less.
Does the cabling condition (bending radius) meet the specifications?
Refer to the manual for the Ethernet cable used, and correct the bending radius.
Is any Ethernet cable disconnected?
Replace the Ethernet cable.
Does the switching hub in use normally operate?
• Check that the power supply of the switching hub is turned on.
• Check that the switching hub compliant with the specifications of the master module
in use is used. (
User's manual for the master station used)
• Disconnect the Ethernet cables and then reconnect them.
• Power off and on the switching hub.
Are other stations connected to the safety remote I/O module
normally operating?
• Check that the power supplies of the other stations are turned on.
• Disconnect the Ethernet cables and then reconnect them.
• Power off and on the switching hub.
Is the IP address of the safety remote I/O module duplicated with any
of other stations within the access range of CC-Link IE TSN?
Change the IP address so that no IP address duplication occurs in the access range of
CC-Link IE TSN.
Does another station between the master station and the safety
remote I/O module link up at the desired communication speed?
Change the communication speed of another station or the switching hub to satisfy the
communication speed conditions.
Summary of Contents for CC-Link IE-NZ2GNSS2-16DTE
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Page 17: ...1 PRODUCT LINEUP 1 1 List of Products 15 1 MEMO ...
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Page 162: ...160 APPX Appendix 7 Added and Changed Functions MEMO ...
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