Mitsubishi Electric MELSEC iQ-R-R00CPU User Manual page 124

• Falling instruction
When a falling instruction exists within the range to be changed, the falling instruction will not be executed even if the
execution condition (ON to OFF) is satisfied after completion of the online change (ladder block) or writing data to the
programmable controller.
Online change
completion
END 0 A
Status of X0
ON
X0
OFF
→
OFF OFF
ON
M0
OFF
ON
X0
OFF
→
ON OFF
ON
M0
OFF
(1) The falling instruction will not be executed even if the execution condition is OFF to OFF.
(2) If a completion of the online program change and a timing of satisfying the execution condition (ON to OFF) occur simultaneously, the falling instruction will
not be executed.
• SCJ instruction
If an SCJ instruction exists within the range to be changed and the execution condition is satisfied at the completion of the
online change (ladder block) or writing data to the programmable controller, the program will jump without waiting for a single
scan.
Online change
completion
END
ON
Status of X0
X0
OFF
OFF → OFF
SCJ instruction
ON
X0
OFF
ON → ON
SCJ instruction
ON
X0
OFF
OFF → ON
SCJ instruction
5 WRITING DATA TO THE CPU MODULE
122
5.3 Precautions
X0
[ PLF M0 ]
END 0 A END 0
1 scan
(1)
(2)
X0
[ SCJ P0 ]
A
0 END 0 A END 0
1 scan
(2)
(1) The program jumps to the specified pointer.
(2) The program jumps to the specified pointer without waiting for a single scan.
(1)
(1)