Mitsubishi Electric MELSEC-Q Structured Programming Manual page 254

FXCPU Structured Programming Manual
[Device & Common]
PLC
Error operation
code at error
occurrence
Special block error [M8449(D8449)]
*1
General data sum error
020
*1
General data message error
021
*1
System access error
022
*1
Access sum error in other station via CC-Link
025
*1
Message error in other station via CC-Link
026
*1
Memory access error
030
Continues
operation
*1
FROM/TO error
080
*1
Peripheral equipment access error
090
Special parameter error [M8489 (D8489)]
*2
Special parameter setting time-out error
01
*2
Special parameter setting error
02
Continues
operation
*2
Special parameter transfer target unconnected error
03
*2
Special parameter unsupported function
04
*1. The unit number 0 to 7 of the special function unit/block error is put in
*2. " " indicates the following values for each special adapter/special block where an error has
occurred.
If an error has occurred in 2 or more special adapters/special blocks, "
number among the special adapters/special blocks in which an error has occurred.
Value of
252
Contents of error
(decimal) Special adapter/special block where an error has occurred
00 Special block (Unit number 0)
10 Special block (Unit number 1)
20 Special block (Unit number 2)
30 Special block (Unit number 3)
40 Special block (Unit number 4)
50 Special block (Unit number 5)
60 Special block (Unit number 6)
70 Special block (Unit number 7)
81 Special adapter (Communication channel 1)
82 Special adapter (Communication channel 2)
5.1 FX3S/FX3G/FX3GC/FX3U/FX3UC PLCs
Action
Verify that extension cables are correctly connected.
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.
This error occurs in the execution of operation.
• Review the program and check the contents of the operands used
in applied instructions.
• Verify that specified buffer memories exist in the counterpart
equipment.
• Verify that extension cables are correctly connected.
• Check the cable connection between the programming panel (PP) /
programming device and the PLC.
• Verify that extension cables are correctly connected.
Turn OFF the power, and check the power supply and connection of
special adapters/special blocks.
Special parameters are set improperly.
• Confirm troubleshooting for special adapters/special blocks, and
set special parameters correctly.
• Set special parameters correctly, turn OFF the power, and then
turn ON the power.
Special parameters are set, but special adapters/special blocks are
not connected.
Check whether special adapters/special blocks are connected.
Check that special parameters with unsupported settings are not set
for connected special adapters/special blocks.
5 Errors
.
" indicates the lowest unit