App - 20 App - 20
MELSEC-Q
APPENDIX
Numbers in the B00
H
range • • • Errors related to communication with the PLC CPU
Error code
Meaning
Corrective action
B10
H
A station with the specified PC number does not
exist.
Check the specified station.
B11
H
Communication error between the
communication module and PLC CPU.
Check the communication module or CPU.
B12
H
A special function module cannot be found at
the specified I/O address.
Check the special function module at the specified
address.
B13
H
A step number (address) exceeding the
parameter range is specified.
Specify a step number (address) within the parameter
range.
B18
H
A remote RUN/STOP was executed from
another module.
Cancel the remote RUN/STOP from the other
module.
B20
H
The MELSECNET (II) is not operating correctly.
Check the MELSECNET (II).
B21
H
Cannot access the specified special function
module.
Check to see if the special function module has failed.
B40
H
Time out error
Check the CPU.
B41
H
Data communication error with the CPU
Check to see if there is a CPU error.
B46
H
The specified CPU is faulty.
Check to see if there is a CPU error.
B80
H
The contents of the control table for the PCRD
and PCWT instructions are incorrect.
The data storage area is too small.
Check the contents of the control table.
Increase the data storage area.
B81
H
It is attempted to execute processing that the
specified CPU cannot perform.
The specified processing cannot be performed in the
applicable CPU.
B82
H
Device name (device code) is incorrect.
Specify the correct device code.
B83
H
Device number is incorrect.
Specify a device number in the allowable range.
B84
H
It is attempted to monitor before performing
monitor registration.
Monitor after performing monitor registration.
B85
H
The PC number is different from at the time of
monitor registration.
Use the same PC number as at the time of monitor
registration.
B86
H
The system configuration is different from at the
time of monitor registration.
Use the same system configuration as at the time of
monitor registration.
B87
H
There are too many points to be monitored.
Decrease the number of monitoring points.
B88
H
Cannot be executed in the specified block
number of the extension file registers.
Change to extension file registers where the
execution is possible.
B89
H
It is attempted to change a program or
parameters while the ROM is operating.
Do not change programs or parameters while the
ROM is operating.
B8A
H
It is attempted to perform a processing that
cannot be performed while the CPU is running.
Perform the processing after stopping the CPU.
B8D
H
A processing code for the PCRD and PCWT
instructions is incorrect.
Specify the processing code correctly.
BA4
H
An error that occurred in the CPU was returned
to the PCRD/PCWT instruction.
Check the detailed error code using the format 2
control table of the PCRD/PCWT instruction. See the
manual for the CPU that was accessed or the CPU
that was routed through prior to the accessed CPU
for the meaning and corrective action for the detailed
error code.
BA7
H
An error that occurred in the intelligent
communication module was returned to the
PCRD/PCWT instruction.
Check the detailed error code using the format 2
control table of the PCRD/PCWT instruction. See the
error code table in Appendix for the meaning and
corrective action for the detailed error code.
BAC
H
An error that occurred in Ethernet was returned
to the PCRD/PCWT instruction.
Check the detailed error code using the format 2
control table of the PCRD/PCWT instruction. See the
manual for the Ethernet module that was routed
through prior to the access target for the meaning and
corrective action for the detailed error code.
BAF
H
An error that occurred in the network module
was returned to the PCRD/PCWT instruction.
Check the detailed error code using the format 2
control table of the PCRD/PCWT instruction. See the
manual for the network module that was routed
through prior to the access target for the meaning and
corrective action for the detailed error code.
