52
System error information (use the contents of D9004)
Error Code Error Cause
Opportunity to Detect the Error
PLC Status Status of the ERR Indicator
Check Sum incorrect
ROM access error
Twinkling by 1Hz
9064
9065
9066
9067
6100
6101
6105
PLC ID≠Project ID
PLC model is incorrect
Operation error
RAM access error
Watch Dog Timer exceeding
STOP → RUN
STOP → RUN
STOP → RUN
During the program processing
Power OFF → ON
Power OFF → ON
During the program processing
STOP
STOP
STOP
RUN
STOP
STOP
STOP
OFF
ON
ON
Operation error information (use the contents of D9067)
0
6701
6702
6704
6705
6706
6708
6710
Normal, no processing error
The destination pointer of the CJ or CALL instruction is not exist. Usually the pointer is modified by an incorrect index
register.
More than 5 Levels of the CALL instruction have been nested together.
More than 5 Levels of the FOR / NEXT loop have been nested together.
An incompatible device has been specified as an operand for an application instruction.
Specified devices or contents at the operand has been exceeded the range for the application instruction.
The source or destination for the FROM / TO instruction is not existed.
The assigned parameter does not match with the application instruction.
The code below is for the PID instruction
6730
6732
6733
6734
6735
6736
6740
6742
6743
6744
6745
6746
6747
The setting value of Sampling Time (Ts) is beyond the range (Ts < 1).
The setting value of Input Filter constant (α) is beyond the range (α < 0 orα≥100).
The setting value of Proportional Gain constant (KP) is beyond the range (KP < 1).
The setting value of Integral Time constant (TI) is beyond the range (TI < 0)
The setting value of Differential Gain constant (KD) is beyond the range (KD < 0 or
KD > 100).
The setting value of Derivative Time constant (TD) is beyond the range (TD < 0).
The change of the measured Present Value is too large ( △ PV < –32768
or △PV > 32767).
The calculating value of Integral process exceeds –32768~32767.
The value of Proportional Gain (KP) is too large, it cause the calculating value
of proportion which exceeds the range.
The calculating value of Differential process exceeds –32768~32767.
The calculating result value of the PID instruction which exceeds -32768~32767.
The PID instruction will stop
to operate
The variance of current Error Value is too large ( △ EV < –32768 or △ EV > 32767).
The PID instruction will
continue to operate
Effect to the Instruction
2-14-3 Error Code Description
Twinkling by 1Hz
Twinkling by 1Hz
Twinkling by 1Hz
Error Code
Error Code
Error Cause
Error Cause
The Sampling Time <= The Scan Time of PLC
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