Mitsubishi Electric MELSEC iQ-R-R00CPU - Page 758

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APPX
Appendix 1 Error Codes
37C1H Program
execution error
• In the CPU module which
operates in redundant mode, an
SFC program is set in the CPU
parameters ("Program Setting").
Stop • Check the detailed information (drive/
file information) of the error by
executing module diagnostics using
the engineering tool, and delete all
SFC programs registered. Then, write
CPU parameters to the CPU module
again.
Drive/file
information
At write, at
power-on, at
RESET, at
STOP  RUN
state
37E0H Memory format
by memory copy
• The memory copy was executed
and the memory in the standby
system has been formatted.
Stop • Power off and on or reset the CPU
module after the memory copy
completed.
 At memory
copy
3C00H Hardware failure • A hardware failure has been
detected.
Stop ■CPU module
• Take measures to reduce noise.
• Check the mounting status of the CPU
module, SIL2 function module, and
safety function module.
• 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 CPU module
or module (SIL2 function module or
safety function module) connected.
Please consult your local Mitsubishi
representative.
■Redundant function module
• The possible cause is malfunction due
to noise. Take measures to reduce
noise by checking the distance of wires
and cables, and the grounding status of
each device.
• Execute a module communication test.
If the same error code is displayed
again, the possible cause is a
hardware failure of the redundant
function module. Please consult your
local Mitsubishi representative.
Failure
information
Always
3C01H
3C02H At power-on,
at RESET, at
END
instruction
execution, at
interrupt
occurrence
3C03H Always
3C0FH ■CPU module
• Take measures to reduce noise.
• Check the mounting status of the CPU
module, SIL2 function module, and
safety function module.
• 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 CPU module,
extended SRAM cassette, battery-less
option cassette, or module (SIL2
function module or safety function
module) connected. Please consult
your local Mitsubishi representative.
■Redundant function module
• The possible cause is malfunction due
to noise. Take measures to reduce
noise by checking the distance of wires
and cables, and the grounding status of
each device.
• Execute a module communication test.
If the same error code is displayed
again, the possible cause is a
hardware failure of the redundant
function module. Please consult your
local Mitsubishi representative.
Error
code
Error name Error details and cause Stop/
continue
Action Detailed
information
Diagnostic
timing