Panasonic FP-E Programming Manual page 1082

Precautions Concerning Programs
5. LOOP/LBL
6. MC/MCE
Also, rewritng is not possible during RUN in case of other syntax errors.
2. During the forced input/output operation
Interrupt restrictions
When using interrupt, high−speed counter, pulse output or PWM output functions, do
not perform a rewrite during RUN.
If a rewrite during RUN is executed, the operation as below will be performed. Exercise
caution.
1. Interrupt programs will be disabled. Enable by executing an ICTL
instruction once again.
<Example> Using R9034 (rewrite during RUN completed flag)
R9013
R9034
2. The high−speed counter will continue to count.
Target value match on/off instructions (F166/F167) will continue.
Coincidence interrupt programs will be disabled when the F166/F167
instruction is running.
3. Pulse output and PWM output will be stopped.
State Instruction number Name
Continue F171 (SPDH)
Stop F172 (PLSH)
Stop F173 (PWMH)
Continue F174 (SP0H)
Continue F175 (SPSH)
Stop F176 (SPCH)
4. The fixed time sampling trace will not be stopped.
For FP2/FP2SH
Instructions that cannot be added or deleted by rewriting during RUN
1. Step ladder instructions (SSTP/STPE)
2. Subroutine instructions (SUB/RET)
3. Interrupt instructions (INT/IRET)
4. Control instructions (ED/LBL)
* The LBL instruction can be inserted/written, but cannot be deleted/erased.
Instructions that cannot be added or deleted during subprograms
1. JP/LBL
2. LOOP/LBL
3. MC/MCE
Cases where rewriting is not possible during RUN
1. When a syntax error occurred.
2. When the forced input/output operation is running.
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ICTL, S1, S2
Pulse output (with channel specification) (Home position return)
Pulse output (with channel specification) (JOG operation)
PWM output (with channel specification)
Pulse output (with channel specification) (Selectable data table control operation)
Pulse output (Linear interpolation)
Pulse output (Circular interpolation)