7
COMMUNICATION USING BUILT-IN ETHERNET
PORTS OF CPU MODULE
7.4 MC Protocol Communication
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(5) Error codes for communication using MC protocol
Table7.6 shows the error codes, error descriptions, and corrective actions that will be
sent from the CPU module to an external device when an error occurs during
communication using the MC protocol.
Table7.6 List of available devices in QnUDE(H)CPU
No.
Error code
(Hexadecimal)
Description
Corrective action
1
4000
H
to 4FFF
H
CPU detected error (Error that occurred in other than
communication using the MC protocol)
Refer to the QCPU User's Manual (Hardware Design,
Maintenance and Inspection) and take corrective action.
2
0055
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 the online change setting on the Built-in Ethernet port
tab of PLC parameter in GX Developer and write data to the
CPU module.
• Change the status of the CPU module to STOP and write data.
3
C050
H
When the communication data code setting is set to ASCII code in
the QnUDE(H)CPU, ASCII code data that cannot be converted to
binary code was received.
• Set the communication data code to binary code and restart the
QnUDE(H)CPU for communication.
• Correct the send data on the external device side and resend
the data.
4
C051
H
to C054
H
The number of device points for reading/writing is outside the
allowable range.
Correct the number of device points for reading/writing and resend
the data to the QnUDE(H)CPU.
5
C056
H
The read/write request data exceeds the allowable address range.
Correct the start address or the number of device points for
reading/writing, and resend the data to the QnUDE(H)CPU.
(Do not exceed the allowable address range.)
6
C058
H
The request data length after the ASCII to binary conversion does
not match the data size of the character area (a part of text data).
Check and correct the text data or the request data length of the
header data, and resend the data to the QnUDE(H)CPU.
7
C059
H
• The command and/or subcommand are specified incorrectly.
• The command and/or subcommand not supported in the
QnUDE(H)CPU are specified.
• Check the request data.
• Use commands and/or subcommands supported in the
QnUDE(H)CPU.
8
C05B
H
The QnUDE(H)CPU cannot read/write data from/to the specified
device.
Check the device for reading/writing data.
9
C05C
H
The request data is incorrect. (ex. specifying data in units of bits for
reading/writing of word devices)
Correct the request data (such as subcommand correction) and
resend the data to the QnUDE(H)CPU.
10
C05D
H
Monitor registration is not performed.
Perform the monitor registration before monitor operation.
11
C05F
H
The external device sent a request that cannot be executed in the
target CPU module.
• Correct the network number, PC number, request destination
module I/O number, and request destination module station
number.
• Correct the read/write request data.
12
C060
H
The request data is incorrect. (ex. incorrect specification of data for
bit devices)
Correct the request data and resend the data to the
QnUDE(H)CPU.
13
C061
H
The request data length does not match the data size of the
character area (a part of text data)
Check and correct the text data or the request data length of the
header data, and resend the data to the QnUDE(H)CPU.
14
C06F
H
The CPU module received a request message in ASCII when the
communication data code setting is set to binary code, or received
a request message in binary when the data code setting is set to
ASCII code.
(As for this error code, only error history is registered. The error
response message is not returned.)
• Send request messages corresponding to the communication
data code setting.
• Set the communication data code corresponding to the request
message.
15
C070
H
The device memory extension cannot be specified for the target
station.
Read/Write data to the device memory without specifying the
extension.
16
C0B5
H
Data that cannot communicate in the CPU module or Ethernet
module is specified.
• Check the request data.
• Stop the current request.
17
C200
H
The remote password is incorrect.
Check the remote password and perform unlock/lock processing
again.
18
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.
19
C204
H
The external device is different from the one that quested remote
password unlock processing.
Have the same external device which has requested unlock
processing request remote password lock processing.
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