Mitsubishi Q01CPU User Manual page 497

12
TROUBLESHOOTING
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
FEND instruction of the main routine
program.
• The IRET instruction was executed in
4223 the fixed scan execution type
program.
• The STOP instruction was executed
in the fixed scan execution type
program.
The interrupt pointer for the module
4225 mounted on the extension base unit is
set in the redundant system.
*3 The module whose first 5 digits of serial No. is 04012 or later.
*4 The module whose first 5 digits of serial No. is 07012 or later.
*5 The module whose first 5 digits of serial No. is 07032 or later.
*6 The module whose first 5 digits of serial No. is 09012 or later.
*7 The Universal model QCPU except the Q02UCPU.
*8 This applies to the QnUDE(H)CPU.
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.
Delete the setting of interrupt pointer for
the module mounted on the extension
base unit, since it cannot be used.
12.3 Error Code List
12.3.6 Error code list (4000 to 4999)
9
Corresponding
CPU
10
11
12
QnU
*6
QnPRH
12
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