Sending Errors During Fixed Buffer Communication (Common To Procedure Exist And No Procedure) - Mitsubishi MELSEC-F User Manual

11 TROUBLESHOOTING
11.5.1 Sending errors during fixed buffer communication
(common to procedure exist and no procedure)
Check the open status of the
connection with an external device.
corresponding connection
If so, modify the program.
Read the open abnormal code (BTF
#229...) of the error log area and
check that no errors have occurred.
Read the content of the communication
abnormal code storage area (BFM
#125, 135...) corresponding to the
fixed buffer of the buffer memory and
check whether or not a communication
error has occurred.
Has a communication
Check that "send" is set in the
parameter open settings.
IP address of the external device,
11 - 37
Sending error
Are the
LEDs (C1-C8) lit?
YES
Have parameter
errors occurred?
YES
error occurred?
YES
1)
Send is set
YES
Is the parameter,
correct?
YES
1)
Execute the open processing of the
NO
applicable connection. (For details,
see Section 5.6.)
NO
Fix the error according to the error
code (see Section 11.4).
NO
Fix the error according to the error
code (see Section 11.4).
NO
Change parameters to "send".
NO
Correct the IP address of the external
device.
MELSEC-F
11 - 37