Mitsubishi FX3U-ENET, Руководство пользователя

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MELSEC-F
11 TROUBLESHOOTING
Is initial
processing normally completed
(BFM#27=
0001
H
)
NO
(BFM#27=
0001
H
)
YES
Check and fix the faulty part for each
communication processing.
Sending error in fixed buffer communication See Section 11.5.1.
Receiving error in fixed buffer communication See Section 11.5.2.
Error in the MC protocol communication See Section 11.5.3.
Send error during communication by e-mail See Section 11.5.4.
Receive error during communication by e-mail See Section 11.5.5.
1)
Perform initial processing.
(See Section 5.2.1.)
If the initial processing parameters set
with FX Configurator-EN and the
sequence program for initial processing
overlap, delete the sequence program
for initial processing.
1 See Section 11.1 when the value of BFM#27 is "0000
H
" or when the display LED COM.ERR (communication error detection display)
lights up.
(Check an error code that is stored in the buffer memory in reaction to an error occurrence, then check the contents of the error and
take corrective actions by referring to Section 11.4.)
2 Error codes not found in the error code list may be returned to the external device side if the communication data settings on the
Ethernet module side (see Section 4.6) and the data code settings on the external device side are different.
The Ethernet module cannot decode commands correctly if data with different data codes is received. The Ethernet module returns
error responses according to the communication data code settings.
[example] When communication is performed using a fixed buffer.
60
H
00
H
Text
End code Subheader
Data length
Subheader
External device side
(Set to binary code)
The external device side
receives this portion
as an end code.
45
H
30
H
35
H
34
H
Subheader
Ethernet module side
(Set to ASCII code)
3 If the FG terminals of the Ethernet module are not set, the communication line is closed (disconnected) due to the effects of noise, and
as a result communication with an external device may not be performed.