Mitsubishi Melsec-Q Series User Manual page 341

(From the previous page)
Is a response returned in
PING test?
NO
NO
Does transmission
pass through a router?
YES
Is the same network address set
for IP addresses of the target
device, router, and CPU?
YES
Is there default router IP address
and subnet mask pattern settings in
CPU parameters?
YES
Are the router IP address and
subnet mask set on the target
device side?
YES
1)
Any error in the router?
YES
Are the router
4
settings correct? *
YES
*4: Check the following.
(To the next page)
YES
Is the same network
address set for IP addresses of the target
device and CPU?
Is the same subnet mask used?
YES
NO
Set the same network address for the IP addresses.
Is Ethernet
NO
communication available with
the target device?
NO
Enter a default router IP address and subnet
mask pattern correctly.
Is Ethernet
NO
communication available with
the target device?
NO Set the router IP address and subnet
mask correctly.
Is Ethernet
NO
communication available with
the target device?
NO
Remove the error in the router.
Is Ethernet
NO
communication available with
the target device?
NO
Modify the router settings.
Is Ethernet
NO
communication available with
the target device?
Are the routing settings for the Built-in Ethernet port QCPU and target devices correct?
Isn't communication with the Built-in Ethernet QCPU disabled by any security or
security software?
CHAPTER12 TROUBLESHOOTING
NO
Does transmission
pass through a router?
YES
(To the next page)
1)
NO
Correct the network
address and subnet mask
of the IP address.
(To the next page)
YES
YES
YES
YES
YES
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