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Error code
Error details
(hexadecimal)
BC02
System error
Message transmission
BC03
target station failure
Message transmission
BC04
target station error
Station No. out of range
BC05
(Message transmission
function)
Message transmission
BC06
function executing station
invalid
BC07
Send data size out of range
BC08 to BC09
BC30
BC33 to BC34
System error
BC35 to BC39
BC3A
Message transmission
BC50
handshake failure
Message transmission
BC51
handshake failure
Message transmission
BC52
handshake timeout
Cause of error occurrence (details)
The target station specified for the message
transmission function is in any of the
following status.
• No network parameter is set.
• The specified station No. is not the head
station number.
• The station has been set as a reserved
station.
• A data link error (including All stations data
link error) has occurred.
The message transmission was performed to
a station other than remote device stations
and intelligent device stations.
The station No. specified for the message
transmission function is out of the range
between 1 and 64.
Execution of the message transmission
function was attempted from a station other
than the master station.
The send data size was out of the range
when message transmission was executed.
With the message transmission function,
abnormal data were received.
During execution of message transmission, a
data link error has occurred on the
corresponding station.
During execution of message transmission,
some parameters were changed.
With the message transmission function,
abnormal data were received.
With the message transmission function, a
communication timeout has occurred.
Data link stop (SB0002) was executed during
the message transmission.
In the message transmission function, a stop
error in the CPU module has been detected.
CHAPTER 15 TROUBLESHOOTING
Corrective action
Please consult your local Mitsubishi
representative.
Check network parameters or target
stations' operations.
Check the target station.
Check the specified station No.
Execute the message transmission
function on the master station.
Change the send data size within the
range.
Please consult your local Mitsubishi
representative.
Check the program to see if any
prohibited remote output (RY) has
not been accessed. If the same error
persists after checking the above,
the master module or remote device
station may be faulty. Please consult
your local Mitsubishi representative.
Check the operation of the target
remote device station.
Stop the data link, then change the
parameters.
Check the program to see if any
prohibited remote output (RY) has
not been accessed. If the same error
persists after checking the above,
the master module or remote device
station may be faulty. Please consult
your local Mitsubishi representative.
Increase the value for Monitoring
time setting (SW0009). If the error
occurs again, check the request
destination module and cables.
Stop data link after completion of
message transmission.
Set "Continue" in "PLC Down Select"
to execute the message
transmission while the stop error has
occurred in the CPU module.
Detectability
Master
Local
station
station
15
371
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Table of Contents
Troubleshooting
