Internal relay
High-level instruction
ON
OFF
Executed
Single scan
■
Input of differential execution type instruction
● To input a differential execution type instruction using the tool software FPWINGR, press the
[Shift] key and [F6] key, and then select an instruction from the instruction list dialog box.
● (P) comes at the head of differential execution type instructions.
■
How differential execution type instructions work
● While the internal relay that is set as the execution condition for differential execution type
instructions is turned ON, instructions are only executed at the leading edge of the signal,
and after that instructions are not executed.
● Instructions are not executed for the first scan if the internal relay for differential execution
type instruction is established from the beginning when the mode is switched to RUN mode
or when the power supply is turned on in RUN mode.
Internal relay
Operation of instruction
RUN
(Power ON)
Not executed
Executed
● When differential execution instruction (P instruction) is used with instructions that change
the order of execution of instructions such as MC-MCE or JP-LBL ((1) to (6), shown below),
the action executed by the instruction may change depending on the timing of the execution
of the instruction or the timing of the count input. Take care regarding this point.
(1) MC to MCE instructions
(2) JP to LBL instructions
2.1 Structure of Instructions
2-6 WUME-FP7CPUPGR-12
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