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MELSEC-Q
8 TROUBLESHOOTING
8.3 Error Code List
When an error is detected, the QJ71AS92 turns the ERR. LED on and displays the
status on the CODE LED with any of the following numbers.
At error occurrence, the error code is also stored into "Error Code, Error History"
(buffer memory addresses C0
H
to C5
H
: Un\G192 to Un\G197) of the buffer memory.
Number
Error Code
“CODE” LED
Detail
39
H
39
A configuration error has not occurred.
40
H
40
The QJ71AS92 is in the offline phase.
41
H
41
The QJ71AS92 is in the detection phase.
42
H
42
The QJ71AS92 is in the activation phase.
43
H
(0 to 31) *
1
A configuration data mismatch occurs in the configuration mode.
A00
H
to A1F
H
A LED ON
Communication with the slave of the corresponding slave address in group
A cannot be performed in the protected operation mode.
B00
H
to B1F
H
B LED ON
Communication with the slave of the corresponding slave address in group
B cannot be made in the protected operation mode.
C00
H
to C1F
H
0 to 31 *
2
A/B LED ON
or OFF
Communication with the non-grouped slave of the corresponding slave
address cannot be performed in the protected operation mode.
(AS-i Ver. 2.04-compatible I/O slave, analog slave)
E51
H
51
E52
H
52
E53
H
53
Internal error: Please consult your local Mitsubishi service center or
representative, explaining a detailed description of the
problem.
E80
H
80
The slave address 0 was recognized. The QJ71AS92 cannot end the
configuration mode.
E81
H
81
A general error occurred during a slave address change.
E82
H
82
The QJ71AS92 has been set in the switch operation disabled status from
the CPU module.
E90
H
90
An error occurred during slave address change. The slave of the slave
address 0 does not exist.
E91
H
91
An error occurred during slave address change. The assigned slave
address has already been used.
E92
H
92
An error occurred during slave address change. A new slave address
cannot be set.
E93
H
93
An error occurred during slave address change. The new slave address can
be stored into only the nonvolatile memory of the slave.
E94
H
94
An error occurred during slave address change in the protected operation
mode. The configuration information of the slave is in error.
E95
H
95
An error occurred during slave address change in the protected operation
mode. The slave address that caused the setting error is the slave used
instead of the old slave.
F50
H
50
Hardware error: Please consult your local Mitsubishi service center or
representative, explaining a detailed description of the
problem.
F70
H
70
Hardware error: EEPROM write error. Please consult your local Mitsubishi
service center or representative, explaining a detailed
description of the problem.
F72
H
72
F73
H
73
Hardware error: Please consult your local Mitsubishi service center or
representative, explaining a detailed description of the
problem.
F74
H
74
EEPROM write error: The processing of write to the EEPROM is performed
more than 1000 times during continuous CPU module
operation.
- pg
EEPROM write in execution. (This is rarely displayed since write is
completed in a short time.)
- gd
EEPROM
write
completed.
*1: Any of No. 0 to 31 is displayed.
*2: Slave address detected in the configuration mode. The error code is not stored.
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