Instruction Manual

App-55
IM 04L31A01-17E
App
Appendix
• Other Communication Errors
An English error message is returned via the communication interface. It is not
displayed on the screen.
Code Message
400 Input username.
401 Input password.
402 Select username from ‘admin’ or ‘user’.
403 Login incorrect, try again!
404 No more login at the specified level is acceptable.
410 Login successful. (The special user level)
411 Login successful. (The general user level)
420 Connection has been lost.
421 The number of simultaneous connection has been exceeded.
422 Communication has timed-out.
• Status Messages
Code Message
512 Because memory save is ‘manual’ mode, FTP is not available.
520 Connecting to the line...
521 The data file is being transferred.
530 Setting data cannot be saved during output of setting data.
551 FTP test is being executed...
564 Program parameter cannot be changed during FE4 executing.
566 The specified data cannot be loaded during FE4 executing.
568 The specified data cannot be loaded during program operation.
• Errors Related to Control Operation
Code Message Explanation/Countermeasures/Ref. section
724 Can not operate in the present situation. –
725 Modbus Communication Error. Check the wiring or communication settings.
Chapters 3 and 4.
726 The specified target is not assigned to the control group. Specify another loop.
Appendix 7 Messages