Mitsubishi Q2ACPU

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22. TROUBLE SHOOTING
4201
[FOR NEXT ERROR]
A NEXT instruction was executed although no FOR
instruction has been executed.
Alternatively, there are more NEXT instructions
than FOR instructions.
■Collateral informationmmon
• Common Information:Program error location
• Individual Information:–
■Diagnostic Timing
• When instruction executed
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.
RUN:
Off
ERR.:
Flicker
CPU Status:
Stop
QnA
4202
[FOR NEXT ERROR]
More than 16 nesting levels are programmed.
■Collateral informationmmon
• Common Information:Program error location
• Individual Information:–
■Diagnostic Timing
• When instruction executed
Keep nesting levels at 16 or under.
4203
[FOR NEXT ERROR]
A BREAK instruction was executed although no
FOR instruction has been executed prior to that.
■Collateral informationmmon
• Common Information:Program error location
• Individual Information:–
■Diagnostic Timing
• When instruction executed
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.
4210
[CAN'T EXECUTE(P)]
The CALL instruction is executed, but there is no
subroutine at the specified pointer.
■Collateral informationmmon
• Common Information:Program error location
• Individual Information:–
■Diagnostic Timing
• When instruction executed
4211
[CAN'T EXECUTE(P)]
There was no RET instruction in the executed
subroutine program.
■Collateral informationmmon
• Common Information:Program error location
• Individual Information:–
■Diagnostic Timing
• When instruction executed
4212
[CAN'T EXECUTE(P)]
The RET instruction exists before the FEND
instruction of the main routine program.
■Collateral informationmmon
• Common Information:Program error location
• Individual Information:–
■Diagnostic Timing
• When instruction executed
4213
[CAN'T EXECUTE(P)]
More than 16 nesting levels are programmed.
■Collateral informationmmon
• Common Information:Program error location
• Individual Information:–
■Diagnostic Timing
• When instruction executed
Keep nesting levels at 16 or under.
Error
Code
Error Contents and Cause Corrective Action
LED Status
CPU Status
Corresponding
CPU