12
TROUBLESHOOTING
12.2 Troubleshooting
12.2.27 When Ethernet communication with the target device is not available
12 - 41
9
EMC AND LOW
VOLTAGE
DIRECTIVES
10
LOADING AND
INSTALLATION
11
MAINTENANCE AND
INSPECTION
12
TROUBLESHOOTING APPENDICES INDEX
(From previous page)
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
Does transmission
pass through a router?
Does transmission
pass through a router?
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(To next page)
1)
1)
Set the same network address for the IP addresses.
Remove the error in the router.
Are the router
settings correct? *
4
Modify the router settings.
Are the routing settings for the QnUDE(H)CPU and target device correct?
Isn't communication with the QnUDE(H)CPU disabled by any security/firewall setting?
Completed
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Is a response returned in
PING test?
Is the same network address set
for IP addresses of the target
device, router, and CPU?
Is there default router IP address
and subnet mask pattern settings in
CPU parameters?
Are the router IP address and
subnet mask set on the target
device side?
Set the router IP address and subnet
mask correctly.
*4: Check the following.
Correct the network
address and subnet mask
of the IP address.
Any error in the router?
Is the same network
address set for IP addresses of the target
device and CPU?
Is the same subnet mask used?
Enter a default router IP address and subnet
mask pattern correctly.
Is Ethernet
communication available with
the target device?
Is Ethernet
communication available with
the target device?
Is Ethernet
communication available with
the target device?
Is Ethernet
communication available with
the target device?
Is Ethernet
communication available with
the target device?
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