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APPENDICES
A
Appendix 1 Error Codes
Appendix 1.11 Error codes returned to request source during communication with CPU module
4D21
H
SLMP frame
send
instruction error
The external device IP address setting of the
dedicated instruction is incorrect.
Correct the IP address of the external device, and
execute the instruction again.
QnUDV
LCPU
4D22
H
SLMP frame
send
instruction error
The port number setting is incorrect. Check and correct the port number.
QnUDV
LCPU
4D23
H
SLMP frame
send
instruction error
The number of resends is specified incorrectly. Check and correct the number of resends.
QnUDV
LCPU
4D24
H
SLMP frame
send
instruction error
The arrival monitoring time setting is incorrect.
Set the arrival monitoring time within the allowable
range.
QnUDV
LCPU
4D25
H
SLMP frame
send
instruction error
Sending messages by using the SP.SLMPSND
instruction has failed.
• Check the operation of the external device or
switching hub.
• The line may be congested with packets.
Resend data after a while.
• Check whether the cables are securely
connected.
• Check that there is no connection failure with the
switching hub.
• Execute a communication status test. If the test
completes with an error, take an action to correct
the error.
• Check the module for error by conducting the
module communication test.
• Check whether the IP address specified as
target is correct.
QnUDV
LCPU
4D26
H
SLMP frame
send
instruction error
The CPU module was not able to receive a
response to the request.
• Check and correct the response waiting time.
• Check the external device operation.
• Check whether the external device supports the
function executed.
QnUDV
LCPU
4D27
H
SLMP frame
send
instruction error
The CPU module received a response with the
data length out of the range, which was sent by
the SP.SLMPSND instruction.
• Correct the request data so that the response
data length will be within the specified range,
and execute the instruction again.
• If the same error code is displayed again even
after taking an action, please consult your local
Mitsubishi representative.
QnUDV
LCPU
7D00
H
Predefined
protocol related
error (built-
in/adapter
serial)
Setting value of protocol No. is out of range in
the control data of S(P).CPRTCL instruction.
Check the setting value of protocol No. LCPU
7D02
H
Predefined
protocol related
error (built-
in/adapter
serial)
• Protocol was executed while SM1332 is off.
• S(P).CPRTCL instruction was executed while
the protocol setting data was checking.
• S(P).CPRTCL instruction was executed while
error occurred in the protocol setting data.
• Protocol setting file has not been written to
valid drive.
• Execute the S(P).CPRTCL instruction after
SM1332 is turned on.
• Write the protocol setting data after turning the
CPU to STOP so that S(P).CPRTCL instruction
is not concurrently executed.
• Execute the S(P).CPRTCL instruction after
rewriting protocol setting data to CPU.
• If the same error is displayed again after
rewriting, the cause is a hardware failure of the
CPU module. Please consult your local
Mitsubishi representative.
LCPU
7D10
H
Predefined
protocol related
error (built-
in/adapter
serial)
• Protocol No. which was not registered to CPU
was specified at S(P).CPRTCL instruction
control data.
• S(P).CPRTCL instruction was executed
though the protocol setting data have not been
written to CPU.
• Check whether the specified protocol No. is
correct.
• Check whether the specified protocol No. has
been registered by the value for the with/without
protocol registration (SD1342 to SD1349).
• Execute the S(P).CPRTCL instruction again
after rewriting the protocol setting data.
LCPU
Error code
(Hexadecimal)
Error item Error details Corrective action
Corresponding
CPU
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