Mitsubishi MELSEC Q Series User Manual

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18.4 Error Code and Error Message Lists
18.4.1 Actions by error codes generated at function execution
18
TROUBLESHOOTING
18.4 Error Code and Error Message Lists
This section explains the error codes and messages returned at occurrence of errors.
18.4.1 Actions by error codes generated at function execution
The error code returned when the bus interface function or MELSEC data link function is
executed is returned unchanged as a return value.
(1) Common error codes returned by bus interface functions and MELSEC
data link functions
The following provides the error descriptions and corrective actions corresponding to
individual error codes returned in common at the time of execution of the bus interface
functions and MELSEC data link functions.
* 1 In a single CPU configuration, reset the C Controller module.
In a multiple CPU configuration, reset CPU No.1.
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Table18.8 Common error codes returned by bus interface functions and MELSEC data link functions
Return value
(HEX)
Error description Corrective action
0 Normal completion
1
(0x1)
Driver not started
The driver has not been started.
Correct the error occurred when starting the
driver.
Check the status of the system ROM drive.
Check if the system is operating normally.
2
(0x2)
Timeout error
The timeout occurred while waiting for the response of process.
Check the operation status of the access
station(s).
Retry.
Set MD function timeout value long by the C
Controller setting utility.
66
(0x42)
Already opened
Selected channel has been already opened.
Open once
67
(0x43)
Already closed
Selected channel has been already closed.
Close once
69
(0x45)
Processing code error
An unsupported processing code was issued.
Use the supported processing code.
70
(0x46)
Station specification error
The specified station is incorrect.
A process that should have been requested to other station was
requested to the own station. Or, the station number corresponds to
the own station (0xFF) but the network number is not 0.
Correct the specification of the station number
in the user program.
71
(0x47)
No reception data error (during RECV request)
Data has not been received.
Wait until data is received.
77
(0x4D)
Memory error
Enough memory could not be secured.
Terminate other application(s) currently
running.
Check if the system is operating normally.
Reboot the system.
*1
85
(0x55)
Network channel number error (When a SEND / RECV request is
issued.)
Channel number error.
Check the specified channel number when a
SEND / RECV request is issued.
102
(0x66)
Data sending error
Data sending has failed.
Retry.
Check if the system is operating normally.
Reboot the system.
*1

Mitsubishi MELSEC Q Series Specifications

General

Brand	Mitsubishi
Model	MELSEC Q Series
Category	Controller
Language	English