Mitsubishi Q2ASCPU User Manual page 119

Melsec-qna series
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Error
Code
Error Contents and Cause
(SD0)
No NEXT instruction was executed
following the execution of a FOR
4200
instruction.
Alternatively, there are fewer NEXT
instructions than FOR instructions.
A NEXT instruction was executed
although no FOR instruction has been
4201
executed.
Alternatively, there are more NEXT
instructions than FOR instructions.
More than 16 nesting levels are
4202
programmed.
A BREAK instruction was executed
4203
although no FOR instruction has been
executed prior to that.
The CALL instruction is executed, but
4210
there is no subroutine at the specified
pointer.
There was no RET instruction in the
4211
executed subroutine program.
The RET instruction exists before the
4212
FEND instruction of the main routine
program.
More than 16 nesting levels are
4213
programmed.
Though an interrupt input occurred, the
4220
corresponding interrupt pointer does not
exist.
An IRET instruction does not exist in the
4221
executed interrupt program.
The IRET instruction exists before the
4223
FEND instruction of the main routine
program.
The number of CHK and CHKEND
4230
instructions is not equal.
The number of IX and IXEND
4231
instructions is not equal.
The configuration of the check
conditions for the CHK instruction is
incorrect.
4235
Alternatively, a CHK instruction has
been used in a low speed execution
type program.
Corrective Action
Read the common information of the
error using the peripheral device, check
error step corresponding to its
numerical value (program error
location), and correct the problem.
Keep nesting levels at 16 or under.
Read the common information of the
error using the peripheral device, check
error step corresponding to its
numerical value (program error
location), and correct the problem.
Keep nesting levels at 16 or under.
Read the common information of the
error using the peripheral device, check
error step corresponding to its
numerical value (program error
location), and correct the problem.
Read the common information of the
error using the peripheral device, check
error step corresponding to its
numerical value (program error
location), and correct the problem.
104
Corresponding
CPU
QnA
QnA
QnA
QnA
QnA
QnA
QnA
QnA
QnA
QnA
QnA
QnA
QnA
QnA

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