Parameter Reading/Writing Fails - Mitsubishi Electric MELSEC Q Series User Manual

(c) Telnet connection fails
Check the following items.
The Ethernet cable is not connected to the user Ethernet
port (CH1 and CH2).
The Ethernet cable is not connected to the built-in
Ethernet port (CH1 and CH2).
User name and password is not sure.
A message "Sorry, session limit reached." appears.
(d) FTP connection fails
Check the following items.
The Ethernet cable is not connected to the user Ethernet
port (CH1 and CH2).
The Ethernet cable is not connected to the built-in
Ethernet port (CH1 and CH2).
User name and password is not sure.
There are 11 or more FTP connections to one C Controller
module.
A FTP connection can be established normally from the
®
Windows command prompt.
23.4.3

Parameter reading/writing fails

Check the following items.
Setting/monitoring tools for the C Controller module is
connected by a user name without "Administrator" access
authority.
Administrator's user name and password is not sure.
404
Check item
Check item
Check item
Corrective action
Connect the Ethernet cable.
Initializes a C Controller module.
(Page 62, Section 6.1)
Terminate the Telnet connection from another personal
computer and take any of the following actions:
• Reconnect after the Telnet connection timeout time has
elapsed
(Page 195, Section 12.1.1 (4))
• Reset the C Controller system
Corrective action
Connect the Ethernet cable.
Initializes a C Controller module.
(Page 62, Section 6.1)
Make an adjustment so that the number of FTP
connections becomes 10 or less.
Change to a FTP client tool that can establish a
connection normally.
Corrective action
Connect to Setting/monitoring tools for the C Controller module
by a user name with "Administrator" access authority.
Initializes a C Controller module.
(Page 62, Section 6.1)