Mitsubishi Electric MELSEC iQ-R Series User Manual page 98

Error code Classification
(hexadecimal)
0202H Minor error
Restoration
possible
*1
0203H Minor error
Restoration
possible
0204H Minor error
Restoration
possible
*1
0205H Minor error
Restoration
possible
*1
0206H Minor error
Restoration
possible
0207H Minor error
Restoration
possible
*1
0208H Minor error
Restoration
possible
*1
0209H Minor error
Restoration
possible
020AH Minor error
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10.7 Error Code List
Error name Description and cause
Non-volatile memory data The error history data stored in
error (error history) the non-volatile memory is
incorrect.
Remote buffer memory An area outside the range of
access error the remote buffer memory
areas has been accessed using
the REMFR/REMTO
instructions.
Station number switch The station number setting
changed error switches have been changed
with the module power-on.
Double input discrepancy A double input discrepancy was
detection error detected in a pair of inputs (X0
and X1, X2 and X3, ...).
Input dark test error During an input dark test, test
pulses were not detected.
I/O data error An error was detected by the I/
O diagnostic.
Output read-back error A discrepancy of an output
read-back value and an output
value was detected.
Output dark test error During an output dark test, test
pulses were not detected.
Access error when An access error has occurred
network parameters are when network parameters are
invalid invalid.
Action
• The module will automatically recover immediately
after the error occurs. Note that the error history of
the errors that have occurred will be lost.
• If the same error occurs again, the module may be in
failure. Please consult your local Mitsubishi
representative.
• The module will automatically recover immediately
after the error occurs.
• Correct the setting data of the REMFR/REMTO
instruction to access the remote buffer memory.
The module will recover from this error by setting the
switches to the previous station number that was set
when the module power supply was powered on.
• Review the connected devices and wiring.
• When the connected devices and wiring have no
errors, there may be an influence from noise or a
hardware failure. Take measures to reduce noise.
• Power on the load power supply at the same timing of
power-on of the module power supply.
• If the same error occurs again even after the
measures have been taken, the module may be in
failure. Please consult your local Mitsubishi
representative.
• The module will recover from this error after the
double input discrepancy is eliminated.
• Review the connected devices and wiring.
• When the connected devices and wiring have no
errors, there may be an influence from noise or a
hardware failure. Take measures to reduce noise.
• Power on the load power supply at the same timing of
power-on of the module power supply.
• If the same error occurs again even after the
measures have been taken, the module may be in
failure. Please consult your local Mitsubishi
representative.
• If double outputs are in discrepancy state, eliminate
the error factor.
• Review the connected devices and wiring.
• When the connected devices and wiring have no
errors, there may be an influence from noise or a
hardware failure. Take measures to reduce noise.
• Power on the load power supply at the same timing of
power-on of the module power supply.
• If the same error occurs again even after the
measures have been taken, the module may be in
failure. Please consult your local Mitsubishi
representative.
• Review the connected devices and wiring.
• Check that 24V is supplied to the load power supply
using a tester.
• Check that the external connection is not overloaded.
• When the connected devices and wiring have no
errors, there may be an influence from noise or a
hardware failure. Take measures to reduce noise.
• Power on the load power supply at the same timing of
power-on of the module power supply.
• If the same error occurs again even after the
measures have been taken, the module may be in
failure. Please consult your local Mitsubishi
representative.
Correctly set module parameters of the master station.