Mitsubishi Electric FX5 User Manual page 412

Error Error name
code
3057H System bus error
3060H System bus error
3061H System bus error
3120H Program error
3121H Program error
3142H Program
structure error
APPX
410
Appendix 3 Error Code
Error details and cause
• A timeout occurred during
communication with a connected module
during system processing.
• A signal error was detected with a
connected module when an instruction
was executed.
• A signal error was detected during
system processing.
• The CPU module does not support the
dedicated instruction executed.
• The dedicated instructions specified in
the program cannot be executed with the
specified module.
• The number of devices used in the
dedicated instruction specified in the
program is incorrect.
• The temporary area was used
incorrectly.
Action
• Verify that extension cables are correctly
connected.
• Verify that the version of the CPU module is
compatible with the module where the error
was detected.
• Implement anti-noise measures.
• If there is no problem, there may be a
malfunction in the connected module or in
the extension cables.
• When an error occurs alongside positioning
function, positioning may not stop at the
specified position. After removing the cause
of the system bus error, perform zero return
and clear error.
• Verify that extension cables are correctly
connected.
• Verify that the version of the CPU module is
compatible with the module where the error
was detected.
• Implement anti-noise measures.
• If there is no problem, there may be a
malfunction in the connected module or in
the extension cables.
• When an error occurs alongside positioning
function, positioning may not stop at the
specified position. After removing the cause
of the system bus error, perform zero return
and clear error.
• Verify that extension cables are correctly
connected.
• Verify that the version of the CPU module is
compatible with the module where the error
was detected.
• Implement anti-noise measures.
• If there is no problem, there may be a
malfunction in the connected module or in
the extension cables.
• When an error occurs alongside positioning
function, positioning may not stop at the
specified position. After removing the cause
of the system bus error, perform zero return
and clear error.
• Check the detailed information (error
location information) of the error by
executing module diagnostics using the
engineering tool, display the error program
(step) by the error jump, and correct the
program.
• Check the detailed information (error
location information) of the error by
executing module diagnostics using the
engineering tool, display the error program
(step) by the error jump, and correct the
program.
• 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 check the program. The step number
displayed in the error location information is
counted from the top of the file. (It may be
different from the step number in the
program displayed by the jump function.)
Detailed Diagnostic
information timing
System At END
configuration instruction
information execution, at
interrupt
occurrence,
at module
access
Error location At instruction
information execution
System At instruction
configuration execution
information
Error location At power-on,
information at RESET, at
STOP →
RUN state, at
instruction
execution
Error location At instruction
information execution
Error location At instruction
execution
information