Ethernet Communication With The C Controller Module Cannot Be Established - Mitsubishi Electric MELSEC Q Series User Manual

23.4.2
Ethernet communication with the C Controller module cannot
be established
Issue PING from the personal computer to the C Controller module and check the response.
(1) PING response is incorrect
Check the following items and take appropriate actions so that the PING response becomes normal.
The IP address segments of the personal computer and C
Controller module are different.
The duplicated IP addresses of personal computer and C
Controller module exist in the connected LAN.
Replacement of the C Controller module makes PING not
responding normally.
IP address not in the correct range is specified.
The system in a multiple CPU system is faulty.
A large number of files and directories stored in the root
directory of the drive.
To set parameters of the C Controller module, connect Setting/monitoring tools for the C Controller module to the USB
connector.
(2) PING response is correct
Check the reference of any relevant trouble and take appropriate actions.
No.
1 Setting/monitoring tools for the C Controller module cannot be connected
2 CW Workbench connection fails
3 Telnet connection fails
4 FTP connection fails
402
Check item
Problem
Corrective action
Set both the personal computer and C Controller module
to the same segment.
(Page 129, Section 8.7 (3))
If it is relayed through another segment LAN via the
gateway, contact the network administrator of the
connected LAN.
Contact the LAN network administrator to eliminate the IP
address duplication.
Resets all terminals of the network to which the C
Controller module is connected.
Check the following items and specify a right IP address.
• The IP address shall start with a number from 1 to 233,
excluding 127.
• There shall be no space in the IP address.
Reset the multiple CPU system and restart it.
The number of files and directories stored in the root
directory are reduced to 100 or less. Or, move to the
subdirectory. (Page 309, CHAPTER 18)
Page 403, (2)(a) in this
section
Page 403, (2)(b) in this
section
Page 404, (2)(c) in this
section
Page 404, (2)(d) in this
section
Reference