Yaskawa MP900 Series Machine Controller New Ladder Editor - Manual (Page 75)

1.3 Logical Operation/Comparison Instructions
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1.3.10 RANGE CHECK Instruction (RCHK)
„ Outline
The RCHK instruction checks whether the input value in the Input is within the Lower Limit
and Upper Limit, and then outputs the result to the bit output. The contents of the Input are
retained.
• If the Input value (Input) is greater than the Lower Limit and less than the Upper Limit,
the result (Bit Output) = ON.
• In the cases other than the above, the result (Bit Output) = OFF.
„ Format
Upper limit
Lower limit
Input
Bit output = OFF
Bit output = ON
Bit output = OFF
Symbol: RCHK
Full Name: Range Check
Category: LOGIC
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