Mitsubishi Electric Q80BD-J61BT11N, User Manual

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MELSEC
15 ERROR CODE
Detectability
Error code
(hexadecimal)
Error description Cause of error (details) Corrective action
Master
station
Local
station
B407
Transient
communication number
mismatch error
The numbers for request data and
response data do not match.
Check the line.
B510
Sending channel in use
(own station)
The selected channel is already in use.
The same channel cannot be
used at the same time. Change
the channel number or try not to
use the same channel at the
same time.
B511
Receiving channel in
use The channel of the target station is
already in use.
Execute the mdSend instruction
after a while. Check to see if
more than one request is made
to the channel of the target
station from own station and/or
multiple stations.
B512 Arrival wait timeout
The arrival monitor time has exceeded
(when the resend count is 0) or the
mdReceive instruction was executed
when the mdReceive instruction
execution request flag was not turned
on.
Increase the arrival monitor time
if this error occurred in the
mdReceive instruction and when
another station was executing
the SEND instruction (mdSend
instruction in case of the CC-Link
Ver.2 board).
Increase the arrival monitor time
when own station was executing
an instruction.
If the error persists, check the
network and target station.
B513
Number of retries
exceeded The number of retries exceeded the
set number.
Increase the arrival monitor time.
If the error persists, check the
network and target station.
B515 Channel number error
A channel number is out of the setting
range. Set the channel of own station
and target station to "1 or 2."
B519 Resend count error
The number of resends is out of the
setting range. Set a value in the range from "0
to 15 (times)."
B51A Arrival monitor time error
The arrival monitor time is out of the
setting range. Set a value in the range from "0
to 32767 (seconds)."
B520
Target station number
error "Other than 0" is set for the target
station number. Set the target station number to
"0."
B524 Target station CPU error The target station's CPU is faulty. Check the target station's CPU.
B601
Access code setting
error Nonexistent access code/attribute was
set. Set the correct access
code/attribute.
B602
Transient request
overload error There are too many transient requests
to the corresponding station.
Wait a while and then send the
requests (transient transmission
overload status).
B603
Transient request
overload error There are too many transient requests
to the corresponding station.
Wait a while and then send the
requests (transient transmission
overload status).
B604 Line test in progress
A transient transmission was
performed while a line test was in
progress.
Wait a while and then resend.
B605
Cannot access the
communication buffer. Access to the communication buffer
failed.
Wait a while and then resend.
B607 Target station CPU error
There is an error in the target station's
CPU.
Check the target CPU.
B771
Transient request
overload error
There are too many transient requests
to the corresponding station (when the
requesting station is the AJ65BT-G4,
A8GT-J61BT13 or CC-Link Ver.2
board).
Wait a while and then resend
(transient transmission
overloaded status).