Mitsubishi Electric MELSEC iQ-R-R00CPU User Manual page 742

Error Error name
code
3170H SFC program
block, step error
3171H SFC program
block, step error
3180H SFC program
configuration
error
3190H
3191H
3192H SFC program
configuration
error
3193H
31A0H SFC program
block, step
specification
error
31A1H SFC program
block, step
specification
error
31A2H SFC program
block, step
specification
error
APPX
740
Appendix 1 Error Codes
Error details and cause
• The number of SFC program
steps exceeds the total number of
step relays (S).
• The total number of SFC program
blocks (max. step No. + 1)
exceeds the total number of step
relays (S).
• The SFC program configuration is
illegal.
• A self step number was specified
for the specification destination
step number for the jump
transition.
• A self step number was specified
for the specification destination
step number for the reset step.
• An attempt was made to start an
SFC program block that was
already running.
• A non-existent SFC program block
was specified.
• The specified block exceeds the
range that can be used in the SFC
program.
Stop/ Action
continue
Stop • Correct the program so that the
number of SFC program steps does
not exceed the total number of step
relays (S).
• Check and correct the number of
device setting step relays (S) in the
CPU parameters.
Stop • Correct the program so that the total
number of SFC program blocks (max.
step No. + 1) does not exceed the total
number of step relays (S).
• Check and correct the number of
device setting step relays (S) in the
CPU parameters.
Stop • Take measures to reduce noise.
• Write the SFC program to the CPU
module again. Then, 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. Please consult your
local Mitsubishi representative.
Stop • Check the detailed information (error
location information) of the error by
executing module diagnostics using
the engineering tool, display the error
program (step) by clicking the [Error
Jump] button, and correct the program.
• Take measures to reduce noise.
• Write the SFC program to the CPU
module again. Then, 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. Please consult your
local Mitsubishi representative.
Stop • Check the detailed information (error
location information) of the error by
executing module diagnostics using
the engineering tool, display the error
program (step) by clicking the [Error
Jump] button, and correct the program.
• Turn on Start/stop SFC program
(SM321) if it is off.
Stop • Check the detailed information (error
location information) of the error by
executing module diagnostics using
the engineering tool, display the error
program (step) by clicking the [Error
Jump] button, and correct the program.
• Turn on SM321 (Start/stop SFC
program) if it is off.
• Check the SFC program has existed.
• Check the execution status of the SFC
program.
Stop • Check the detailed information (error
location information) of the error by
executing module diagnostics using
the engineering tool, display the error
program (step) by clicking the [Error
Jump] button, and correct the program.
• Turn on SM321 (Start/stop SFC
program) if it is off.
Detailed Diagnostic
information timing
Error location At power-on,
information at RESET, at
STOP  RUN
state, at SFC
program
execution
Error location At power-on,
information at RESET, at
STOP  RUN
state, at SFC
program
execution
Error location At power-on,
information at RESET, at
STOP  RUN
state, at SFC
program
execution
At SFC
program
execution
Error location At SFC
information program
execution
Error location At SFC
information program
execution
Error location At instruction
information execution, at
SFC program
execution
Error location At instruction
information execution