Mitsubishi FX1S Series Programming Manual page 371

FX Series Programmable Controller
Error Detection
Device
D8067
Operation
error
D8067
PID
Operation
error
Stored Error
Number
0000 No error
1)No jump destination (pointer) for CJ or
CALL instructions
2)(P)ointer is designated in a block that
6701
comes after the END instruction
3)An independent label is designated in a
FOR-NEXT loop or a subroutine
6 or more CALL instruction nesting levels
6702
have been used
3 or more interrupt nesting levels have
6703
been used
6 or more FOR - NEXT instruction nesting
6704
levels have been used
An incompatible device has been
6705 specified as an operand for an applied
instruction
A device has been specified outside of
6706 the allowable range for an applied
instruction operand
A file register has been accessed which is
6707
outside of the users specified range
6708 FROM/ TO instruction error
Other error, i.e. missing IRE/ SRET,
6709
unauthorized FOR - NEXT relationship
6730 Sampling time T
Input filter value α (α<0 or >=101)
6732
6733 Proportional gain K
6734 Integral time constant T
6735 Derivative gain K
Derivative time constant T
6736
(T <0 or >32767)
D
Sampling time TS is less than the
6740
program scan time.
Current value ∆ exceeds its limits
6742
Calculated error ε exceeds its limits
6743
6744 Integral result exceeds its limits
Derivative gain over, or differential value
6745
exceeds allowable range
6746 Derivative result exceeds its limits
6747 Total PID result exceeds its limits
SV - PV
6750
(SV - PV
6751 Large Overshoot of the Set Value
Large fluctuations during Autotuning Set
6752
Process
Associated Meaning
(T <0 or >32767)
S S
(K <0 or >32767)
P P
(T <0 or >32767)
I I
(K <0 or >=101)
D D
D
< 150, or system is unstable
nf
has wide, fast variations)
nf
Diagnostic Devices 6
Action
These error occur during
the execution of an
operation.
When an operation error
occurs, STOP the PLC
enter programming ode
and correct the fault.
Note: operation errors
can occur even when the
syntax or circuit design
is correct, e.g.
D500Z is a valid
statement within an
FX PLC. But if Z had a
1N
value of 10000, the data
register D10500 would
be attempted to be
accessed. This will
cause an operation error
as there is no D10500
device available.
The identified parameter
is specified outside of its
allowable range
Execution ceases PID
instruction must be reset
before execution will
resume
TS is set to program
scan time -
Execution will continue.
Data affected resets to
the nearest limit value.
For all errors except
6745, this will either be a
minimum of -32768 or a
maximum of +32767.
Execution will continue,
but user should reset
PID instruction.
The error fluctuation is
outside the normal
operation limits for the
PID instruction.
Execution ceases. PID
instruction must be
reset.
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