10.1 Troubleshooting Flow
10.1.4 D LINK LED is OFF
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10
TROUBLESHOOTING
10.1.4
D LINK LED is OFF
The following flowchart shows the procedures to be taken when D LINK LED is OFF.
Figure 10.5 When D LINK LED is OFF
D LINK LED is OFF.
Check error factors with CC IE Control Network
Diagnostics and take corrective actions according
to the troubleshooting section.
Connect a cable to the CC-Link IE controller
network module.
Is a cable connected to
the CC-Link IE controller
network module?
Perform a unit test to the CC-Link IE controller
network module.
Use a cable that meets the specification.
Lay a cable correctly.
Use a cable that can be used for the CC-Link IE
controller network module.
Is D LINK LED turned ON?
No
Yes
Is a recommended cable used?
No
No
No
Yes
Are overall and
station-to-station cable distances
within specified ranges?
Yes
Is bending radius within
the allowable range?
Yes
No
Yes
End
Section 2.2.1 Order of optical fiber cables
(Optional)
Section 3.1 Performance Specifications
Section 5.4 Testing the CC-Link IE controller
network module
Section 10.4 Checking the Error Description
with the CC IE Control Network Diagnostics
Summary of Contents for QJ71GP21-SX
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