Mitsubishi Electric MELSEC iQ-R Series User Manual page 479

Error code Error
(hexadecima
l)
7D11H Protocol
simultaneous
execution error
7D12H Send monitoring
time timeout error
7D13H Receive wait
timeout error
7D14H Response
monitoring
timeout error
7D15H Response
monitoring
timeout error
7D16H Protocol cancel
request error
Description Signal
name
• The CPRTCL instruction CHn
and 'CH1 protocol ERR.
execution request' (Y3) or
'CH2 protocol execution
request' (YA) were
executed simultaneously
on the same channel.
• Send monitoring time has CHn
timed out. ERR.
Although the transmission
was retried the specified
number of retries, it did not
succeed.
• Receive wait time has CHn
timed out. ERR.
• Response monitoring time CHn
(timer 1) has timed out ERR.
during data transmission.
• Data to be sent to the
target device was not
obtained from the CPU
module within the
response monitoring time
(timer 1).
• Response monitoring time CHn
(timer 1) has timed out ERR.
during data reception.
• Data received from the
target device was not
stored into the CPU
module within the
response monitoring time
(timer 1).
• A cancel request was CHn
accepted during protocol ERR.
execution, and the
CPRTCL instruction was
completed abnormally.
• The CPRTCL instruction
was completed
abnormally because
protocol setting data were
written during CPRTCL
instruction execution.
• The STOP  RUN
operation was performed
on the CPU module.
Corrective action Protocol
MC
• Correct the program not to
execute the CPRTCL
instruction and 'CH1 protocol
execution request' (Y3)/'CH2
protocol execution request'
(YA) simultaneously on the
same channel.
• Check if the transmission is
interrupted due to some
reasons such as DTR control.
• Check whether the CS signal
is ON.
• Check if the cables are
disconnected.
• Check if the reception is
interrupted due to some
reasons such as DTR control.
• Check if the cables are
disconnected.
• Check if any errors occur on
the target device side.
■Using the circuit trace function
(send/receive data monitoring
function), check if;
• Transmissions from the target
device are interrupted.
• Any data are missing due to a
data reception error.
• The data (packet) sent from
the target device is incorrect.
• Increase the setting value for
the response monitoring time
(timer 1). (Default: 5 seconds)
• If an error occurred on the
CPU module, refer to the
following manual.
(MELSEC iQ-R CPU
Module User's Manual
(Application))
• Increase the setting value for
the response monitoring time
(timer 1). (Default: 5 seconds)
• If an error occurred on the
CPU module, refer to the
following manual.
(MELSEC iQ-R CPU
Module User's Manual
(Application))
• Check the cancelled
Predefined protocol in the
CPRTCL instruction's control
data (number of executions),
and eliminate the cause of the
cancellation.
• Clear the error information by
the 'Error initialization request'
(YE) as necessary.
• To prevent coincidental
execution of the CPRTCL
instruction, set the CPU
module in the STOP state
before writing the protocol
setting data.
• Execute the CPRTCL
instruction again.
Nonpr Bidire Prede
ocedu ctiona fined
ral l
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27 TROUBLESHOOTING
477
27.4 Error Code List
27