Mitsubishi Electric MELSEC iQ-R-R00CPU User Manual page 710

Error Error name
code
11B3H PID operation
error
11B4H PID operation
error
11B5H PID operation
error
11B6H PID operation
error
11B7H PID operation
error
11B8H
1200H Module
moderate error
1210H
1220H Another CPU
module
moderate error
1240H Inter-module
synchronization
processing error
1241H Inter-module
synchronization
processing error
APPX
708
Appendix 1 Error Codes
Error details and cause
• A value outside the range (SHPV
< 0) was specified for the auto
tuning (limit cycle method)
process value threshold
(hysteresis) width (SHPV).
• The system area used for auto
tuning (limit cycle method) was
rewritten.
• As the auto tuning (limit cycle
method) process time was
exceeded, it was not possible to
properly acquire the  and on
time. (on > , on < 0,  < 0)
• An overflow occurred with the
proportional gain (K ) calculated
P
when performing auto tuning (limit
cycle method).
• The integral time (T ) calculated
I
when performing auto tuning (limit
cycle method) was outside the 0
to 32767 range.
• The derivative time (T )
D
calculated when performing auto
tuning (limit cycle method) was
outside the 0 to 32767 range.
• A moderate error has been
notified from the intelligent
function module connected.
• An inter-module synchronous
signal error has been notified from
the intelligent function module
connected.
• A moderate error has been
notified from another CPU
module.
• The execution interval of a
synchronous interrupt program
has exceeded the set value.
• The inter-module synchronous
interrupt program (I44) did not
complete within the inter-module
synchronization cycle.
• The execution interval of a
synchronous interrupt program
has exceeded the set value.
• A cycle where the inter-module
synchronous interrupt program
(I44) was not executed was
detected.
Stop/ Action
continue
Continue • Check and correct the process value
threshold (hysteresis) width (SHPV)
setting value.
Continue • Check whether the occupied system
area has been rewritten with the PID
instruction.
Continue • Increase the difference (ULV-LLV)
between the auto tuning output value
upper and lower limits, or reduce the
input filter constant () and auto tuning
process value threshold (hysteresis)
width (SHPV) values.
Continue • Ensure that the process value (PV)
change increases.
• Reduce the difference (ULV-LLV)
between the auto tuning output value
upper and lower limits.
Continue • Increase the difference (ULV-LLV)
between the auto tuning output value
upper and lower limits, or reduce the
input filter constant () and auto tuning
process value threshold (hysteresis)
width (SHPV) values.
Stop/ • Check the detailed information (system
continue configuration information) of the error
by executing module diagnostics using
the engineering tool, identify the error
Continue
module, and eliminate the error cause.
Stop/ • Check the detailed information (system
continue configuration information) of the error
by executing module diagnostics using
the engineering tool, identify the error
module, and eliminate the error cause.
• Check the mounting status and reset
status of other CPU modules.
Continue • Check the detailed information (time
information) of the error by executing
module diagnostics using the
engineering tool, check the time
setting, and take the following actions:
(1) Check and correct the processing of
the interrupt program (I44) so that it
can be completed within the period
specified in the fixed scan interval
setting.
(2) Check and correct the fixed scan
interval setting value.
Continue • Check and correct the interrupt disable
sections and the interrupt programs
with a high priority so that the inter-
module synchronous interrupt program
can be executed.
Detailed Diagnostic
information timing
Error location At instruction
information execution
Error location At instruction
information execution
Error location At instruction
information execution
Error location At instruction
information execution
Error location At instruction
information execution
System Always
configuration
information
System Always
configuration
information
Time At interrupt
information occurrence

At interrupt
occurrence