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Error code
Error details
(hexadecimal)
Message transmission
BC53
handshake timeout
BC54
Message transmission
handshake failure
BC55
BC57
Multiple requests error
BC58
Message transmission
handshake failure
BC59
BC5A
System error
Abnormal response
BC5B
received
Message transmission
BC5C to BC5F
handshake failure
Invalid number of messages
BC60
that were simultaneously
transmitted
No. of concurrent execution
error
BC70
(Remote device station
access)
Unsupported function error
BC71
(Remote device station
access)
Target station error
(Remote device station
BC72
access)
372
Cause of error occurrence (details)
In 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.
With the message transmission function,
abnormal data were received.
Execution of multiple requests for message
transmission or remote device station access
from a peripheral was attempted to the same
station.
With the message transmission function,
abnormal data were received.
With the message transmission function, an
abnormal response was received.
With the message transmission function,
abnormal data were received.
• The message transmission function was
executed simultaneously for five or more
remote device stations.
• The message transmission function was
executed simultaneously for five or more
intelligent device stations.
Too many remote device station accesses
were requested from peripherals.
Execution of the remote device station
access function was attempted from a station
other than the master station.
The target of remote device station access
from the peripheral is any of the following.
• Does not exist among network
parameters.
• Does not have the start station No.
• Has been set as a reserved station.
• Has a data link error (including errors on
all stations).
Corrective action
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.
Execute the message transmission
function again. If the same error
persists, the master module or
remote device station may be faulty.
Please consult your local Mitsubishi
representative.
Execute a request after completion
of another processing.
Execute the message transmission
function again. If the same error
persists, the master module or
remote device station may be faulty.
Please consult your local Mitsubishi
representative.
Please consult your local Mitsubishi
representative.
Check the operation of the target
remote device station.
Execute the message transmission
function again. If the same error
persists, the master module or
remote device station may be faulty.
Please consult your local Mitsubishi
representative.
Execute four requests or less at the
same time.
Execute four requests or less at the
same time.
Execute the function from the master
station.
Check the parameters or operation
of the target station.
Detectability
Master
Local
station
station
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Table of Contents
Troubleshooting
