Mitsubishi Electric MELSEC iQ-R Series - Page 559

36 ERROR CODES
36.4 List of Error Codes
557
36
1830H Receive queue
full
• The number of transient receive
request exceeded the upper limit of
simultaneously processable requests.
Continue • Reduce the frequency of transient
transmission, and perform
transmissions again.
• Increase the frequency of
transient transmission by using
the COM instruction.
 Always
1831H Receive
processing error
• Transient reception failed. Continue • Reduce the frequency of transient
transmission, and perform
transmissions again.
System
configuration
information
Always
1832H Transient data
error
• Too much transient transmission
processing exists and transient
transmission cannot be performed.
Continue • Correct the number of transient
transmission executions.
 Always
1845H Transient data
buffer full
• Too much transient transmission
processing exists and transient
transmission cannot be performed.
Continue • Correct the number of transient
transmission executions.
 Always
1860H Network error • Tracking communications stopped
due to an error in the network or in the
redundant function module.
Continue • Check the network status by
executing module diagnostics
using the engineering tool and
take an action.
• If the error code is displayed again
even after taking an action, please
consult your local Mitsubishi
representative.
 Always
1861H Tracking
communication
error
• Tracking communications could not
be performed successfully due to an
error in the network or in the
redundant function module.
1900H Constant scan
time error
• The scan time exceeded the constant
scan time set in the CPU parameters.
Continue • Check and correct the constant
scan time setting.
Time
information
At END
instruction
execution
1B00H Network
configuration
mismatch
• The CC-Link IE Field Network
configuration differs between the
systems A and B. (The error is
detected in the standby system.)
Continue • Check that all network cables are
connected correctly.
• Take measures to reduce noise.
• Reset the CPU module and run it
again. If the same error code is
displayed again, the possible
cause is a hardware failure of the
network cable. Please consult
your local Mitsubishi
representative.
System
configuration
information
Always
1B20H System
consistency
check error
(operating
status)
• The operating status of the CPU
module differs between the systems A
and B. (The error is detected in the
standby system.)
Continue • Set the same operating status to
the CPU modules in both systems.
 Always
1B40H Redundant
system error
• Both systems were found to be set as
system A or system B when tracking
cables were connected. (The error is
detected in the control system or the
standby system.)
Continue • Set one system as system A and
th
e o
ther system as system B by
performing online operation. Then,
restart the CPU modules in both
systems.
 Always
1B42H Redundant
system error
• The CPU module operated in
redundant mode was connected to
the CPU module set to process mode
with tracking cables. (The error is
detected in the control system or the
standby system.)
Continue • Read the project stored in the
CPU module operated in
redundant mode, and write it to
the CPU module set to process
mode. Then, reset the CPU
module set to process mode, and
run it again.
 Always
Error
code
Error name Error details and cause Stop/
continue
Action Detailed
information
Diagnostic
timing