Mitsubishi Electric melsec q03ud(E)cpu, Руководство пользователя

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(2) When A-compatible 1E frame is used
An end code and abnormal code are added to a response in MC protocol communication that uses A-compatible
1E frames.
(a) End codes
(b) Abnormal codes
If the end code is "5B
H
," an abnormal code is attached immediately after the code. The following table lists the
abnormal codes to be attached, error details, and required actions.
End code Description Corrective action
00
H
Data is communicated successfully. -
54
H
When the communication data code setting is set to ASCII code in the Built-in Ethernet
port QCPU, ASCII code data that cannot be converted to binary code was received. Correct the send data on the external
device side.
55
H
When the setting for online change is disabled on the Built-in Ethernet port tab of PLC
parameter in GX Developer, an external device requested online change to the CPU
module. • Enable online change and write data.
• Change the status of the CPU module to
STOP and write data.
56
H
An external device specified the incorrect device. Specify the device correctly.
57
H
• The number of points for a command specified by an external device exceeds the
maximum number of processing points (number of points can be processed per
communication) for each processing.
• The number of points specified from the start address (start device number) exceeds
the maximum address (maximum device number) for each processing.
• The length of a command message is too short to analyze.
• Correct the number of points specified or
the start address (start device number).
• Check the command.
Monitoring was requested without monitor data being registered. Register the monitor data.
58
H
The start address (start device number) of a command specified by an external device
exceeds the setting range. Correct the start address within the setting
range for each processing.
The file register (R) cannot be specified. Check the device.
• A word device is specified in a command for bit devices.
• In a command for word devices, the start number of a bit device is specified by a value
other than a multiple of 16.
Correct the command or the specified
device.
5B
H
The CPU module cannot process requests from an external device.
Identify an error location according to the
abnormal code and correct the error.
Abnormal code Description Corrective action
4000
H
to
4FFF
H
CPU detected error (Error that occurred in other than communication using the MC
protocol)
Refer to the following manual.
QCPU User's Manual (Hardware
Design, Maintenance and Inspection)
C080
H
PC number of another station (01
H
to 80
H
)
is specified.
Specify the PC number of own station
(FF
H
).
C201
H
The communication target port is in the remote password locked status. Or, when the
communication data code setting is set to ASCII code, any data of subcommands and
later cannot be converted to binary code since the remote password is locked.
Perform remote password unlock
processing before communication.
When the end code is a value other than "5B
H
"
Response format Subheader End code 0000
H
When the end code is "5B
H
"
Response format Subheader End code Abnormal code
"5B
H
"
An abnormal code is stored.