Error Code List And Action - Mitsubishi Electric MELSEC-Q Structured Programming Manual

FXCPU Structured Programming Manual
[Device & Common]
5.1.2

Error Code List and Action

PLC
Error operation
code at error
occurrence
I/O configuration error [M8060(D8060)]
Head unconnected I/O device number
Example: When X020 is unconnected
Example: Continues
1020 operation
• 1st to 3rd digits: Device number
• 4th digit: I/O type (1:Input X 0:Output Y)
Example: When D8060 stores "1020", inputs X020
Serial communication error [M8438(D8438)]
0000 - No error
3801 Parity error, overrun error or framing error
3802 Communication character error
3803 Communication data sum check error
3804 Data format error
3805 Command error
3806 Monitoring timeout error
3807 Modem initialization error
3808 Simple N:N link parameter error
3809 N:N Network setting error
Continues
3812 Parallel link character error
operation
3813 Parallel link sum check error
3814 Parallel link format error
3820 Inverter communication error
3821 MODBUS communication error
3830 Memory access error
3840 Special adapter connection error
PLC hardware error [M8061(D8061)]
0000 - No error
6101 Memory access error
6102 Operation circuit error
Stops
operation
6103 I/O bus error (while M8069 is ON)
6104 24V failure in function unit (while M8069 is ON)
6105 Watchdog timer error
6106 I/O table creation error (CPU error)
Contents of error
1 0 2 0 Value converted into BCD
Device number
1:Input X 0:Output Y
and later are unconnected.
5.1 FX3S/FX3G/FX3GC/FX3U/FX3UC PLCs
Action
Unconnected I/O relay numbers are programmed.
The PLC continues its operation.
Modify the program if necessary.
• Ethernet communication, Inverter communication, computer link
and programming:
Confirm that parameters are set correctly in accordance with the
application.
• Simple N:N link, parallel link, MODBUS communication, etc.:
Confirm that the program is set correctly in accordance with the
application.
• Remote maintenance:
Confirm that the modem power is ON, and that AT commands are
set properly.
• Confirm the wiring of communication cables.
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.
Check connection of the special adapter.
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.
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.
Verify that extension cables are correctly connected.
The sampling (scan) time exceeds the value stored in D8000.
Check the program.
24V DC power failure has occurred in a function unit when the power
is turned ON. (The 24V DC power is not supplied for 10 seconds or
more after the power is turned ON.)
I/O assignment to the CC-Link/LT (built in the FX
is disabled when the power is turned ON.
5 Errors
1
2
3
4
5
6
7
-32MT-LT/LT-2)
3UC
245