Other communication errors, Status messages, Errors related to control operation – Yokogawa Data Acquisition with PID Control CX2000 User Manual
Page 314

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