2 Instruction Descriptions
2-52
NJ-series Instructions Reference Manual (W502)
• The Set and Reset instructions operate only when the input value changes to TRUE. They do not
operate when the input value is FALSE. When the input value is FALSE, the output does not change.
• The Out instruction changes the specified variable to TRUE when the result from the previous
instruction is TRUE and to FALSE when the result from the previous instruction is FALSE. It operates
both when the input is TRUE and when it is FALSE.
• The SR and RS instructions require that the Set input and Reset input are in the same place in the
program. You can place the Set and Reset instructions in different places.
• If this instruction is in a master control region and the master control region is reset, the value of Out
is retained.
• If this instruction is not executed due to the execution of a jump instruction (e.g., the JMP instruction),
the value of Out is retained.
• These instructions will not change the value of Out if you specify upward differentiation and the input
is TRUE immediately after the power turns ON. The input must first change to FALSE and then to
TRUE before the value of Out changes.
• These instructions will change the value of Out if you do not specify upward differentiation and the
input is TRUE immediately after the power turns ON. In this case it is not necessary for the input to
change to FALSE first.
Additional Information
Differences between the Set and Reset Instructions and the Out
Instruction
Differences between the Set and Reset Instructions and the SR and
RS Instructions
Precautions for Correct Use
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