36 ERROR CODES
36.4 List of Error Codes
597
36
37A1H Parameter error
(redundant
function)
• A device that cannot be used is
specified for tracking transfer in the
CPU parameters.
Stop • Check the detailed information
(parameter information) of the
error by executing module
diagnostics using the engineering
tool, correct the parameter setting
corresponding to the displayed
number, and write parameters to
the CPU module again.
• Take measures to reduce noise. If
the same error code is displayed
again, the possible cause is a
hardware failure of the CPU
module or redundant function
module. Please consult your local
Mitsubishi representative.
Parameter
information
At power-on, at
RESET
37A2H
37A3H Parameter error
(redundant
function)
• Total amount of data set for tracking
transfer in the CPU parameters
exceeds the maximum limit.
Stop • Set the tracking capacity of each
block within the allowable range in
the CPU parameters.
Parameter
information
At power-on, at
RESET
37A4H Parameter error
(redundant
function)
• In the CPU module which operates in
redundant mode, parameters for the
unsupported function have been set
or parameters related to a redundant
system have not been set.
Stop • Check the detailed information
(parameter information) of the
error by executing module
diagnostics using the engineering
tool, correct the parameter setting
corresponding to the displayed
number, and write parameters to
the CPU module again.
• Correct the operation mode set in
the engineering tool. If the same
error code is displayed again, the
possible cause is a hardware
failure of the CPU module. Please
consult your local Mitsubishi
representative.
Parameter
information
At power-on, at
RESET, at
write
37A5H Parameter error
(redundant
function)
• In the CPU module, which does not
support SFC programs when
operating in redundant mode, the
number of points of the step relay (S)
is set to other than 0 in the CPU
parameters.
Stop • Replace the CPU module with the
one supporting SFC programs in
redundant mode.
• Set the number of points of the
step relay (S) to 0 in the CPU
parameters.
Parameter
information
At power-on, at
RESET, at
write
37A6H Parameter error
(redundant
function)
• "Both Systems Program Executions
Setting" of "Program Setting" in the
CPU parameters is set to "Both
systems executions" for SFC
programs.
Stop • Check "Program Setting". Set
"Both Systems Program
Executions Setting" to "Control
system execution" for all the SFC
programs and write the CPU
parameters to the CPU module
again.
Parameter
information
At power-on, at
RESET, at
STOP RUN
state
37A7H Parameter error
(redundant
function)
• Use of the redundant functions that
are not supported by the modules is
enabled in the parameters.
Stop • Check the detailed information
(parameter information) of the
error by executing module
diagnostics using the engineering
tool and correct the parameter
setting corresponding to the
d
i
splayed number.
• Check the detailed information
(system configuration information)
of the error by executing module
diagnostics using the engineering
tool, and check the module
corresponding to the displayed
slot number. If the module does
not support the redundant
function, remove the module from
the base unit.
Parameter
information,
system
configuration
information
At power-on, at
RESET
Error
code
Error name Error details and cause Stop/
continue
Action Detailed
information
Diagnostic
timing