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CHAPTER 3 CPU MODULE FUNCTIONS
3
3.21 Writing Programs in RUN Status
3.21.3 Precautions for online change
(b) SCJ instruction
When the SCJ instruction is in the data written to the CPU module in the RUN status and the execution
condition of the instruction has been on at completion of the online change, the instruction jumps to the
specified pointer without waiting for one scan.
Online change
completed
END
1 scan
END END00 0
OFF OFF
ON ON
X0 status
[ SCJ P0 ]
X0
A
A
OFF ON
Jumps to the specified pointer.
Jumps to the specified pointer.
Jumps to the specified pointer
without waiting for one scan.
X0
OFF
ON
SCJ instruction
X0
OFF
ON
SCJ instruction
X0
OFF
ON
SCJ instruction