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Mitsubishi Electronics FX3G User Manual

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893
FX
3S
/FX
3G
/FX
3GC
/FX
3U
/FX
3UC
 Series
Programming Manual - Basic & Applied Instruction Edition
38 Error Check Method and Error Code List
38.4 Error Code List and Action
31
FNC277
-F
NC2
79
Da
ta
 
Trans
fer 3
32
FNC28
0-F
NC
289
H
igh-Speed 
Process
ing 2
33
FNC2
90-
FNC299
Ex
tensi
on Fi
le
 
Register C
ontrol
34
FN
C300-
FNC30
5
FX
3U
-C
F-
AD
P
35
SFC
•STL
Programming
36
Interrupt 
Function
37
Sp
ec
ia
l D
evi
ce
38
E
rror Code
A
Ve
rsi
on U
p 
Inform
ati
on
B
Ex
ecuti
on
 T
imes
38.4
Error Code List and Action
When a program error occurs in the PLC, the error code is stored in the special data registers D8060 to D8067,
D8438, D8449, D8487 and D8489, and the error bit turns ON in the special data register D8166 as follows.
The following actions should be taken.
Error 
code
PLC operation at 
error occurrence
Contents of error
Action
I/O configuration error [M8060(D8060)]
Ex-
ample: 
1020
Continues
operation
The head number of unconnected I/O device
•
1st to 3rd digits: Device number
FX
3G
/FX
3GC
:10 to 177
FX
3U
/FX
3UC
:10 to 337
•
4th digit: I/O type
(1 = input (X), 0 = output (Y))
Example: When 1020 is stored in D8060
Inputs X020 and later are unconnected.
Unconnected I/O relay numbers are programmed.
The PLC continues its operation. Modify the program, 
check wiring connection, or add the appropriate unit/
block. 
Serial communication error 2 [M8438(D8438)]
0000
⎯
No error
3801
Continues
operation
Parity, overrun or framing error
•
Ethernet communication, inverter communication, 
computer link and programming:
Ensure the parameters are correctly set according to 
their applications.
•
N:N network, parallel link, MODBUS communication, 
etc.:
Check programs according to applications.
•
Remote maintenance:
Ensure modem power is ON and check the settings of 
the AT commands.
•
Wiring:
Check the communication cables for correct wiring.
3802
Communication character error
3803
Communication data sum check error
3804
Communication data format error
3805
Command error
3806
Communication time-out detected
3807
Modem initialization error
3808
N:N network parameter error
3809
N:N Network setting error
3812
Parallel link character error
3813
Parallel link sum error
3814
Parallel link format error
3820
Inverter communication error
3821
MODBUS communication error
3830
Memory access error
When the memory cassette is used, check whether it is 
mounted correctly.
If the problem persists or if the memory cassette is not 
used, something may be malfunctioning inside the PLC. 
Consult your local Mitsubishi Electric representative.
3840
Special adapter connection error
Check connection of the special adapter.
PLC hardware error [M8061(D8061)]
0000
⎯
No error
6101
Stops
operation
Memory access error
When the memory cassette is used, check whether it is 
mounted correctly.
If the problem persists or if the memory cassette is not 
used, something may be malfunctioning inside the PLC. 
Consult your local Mitsubishi Electric representative.
6102
Operation circuit error
Isolate the PLC and supply power to it using a different 
power supply.
If the ERROR(ERR) LED turns OFF, noise may be 
affecting the PLC. Take the following measures.
-
Check the ground wiring, and reexamine the 
wiring route and installation location.
-
Fit a noise filter onto the power supply line.
If the ERROR(ERR) LED does not turn OFF even after 
the above actions are taken, consult your local Mitsubishi 
Electric representative.
1 0 2 0
1: Input (X), 0: Output (Y)
Device number
Example: When X020 is unconnected
BCD conversion value