Yaskawa Ladder Works Programming Manual - Manual (Page 65)

3.10 RANGE CHECK Instruction (RCHK)
3-12
[Program Example]
Integer type data
Input (MW00100) Output (DB000000)
-1000>MW00100 OFF
-1000<=MW00100<=1000 ON
MW00100>1000 OFF
Double-length integer type data
Input (ML00100) Output (DB000000)
-100000>ML00100 OFF
-100000<=ML00100<=100000 ON
ML00100>100000 OFF
Real number type data
Input (DF00100) Output (DB000000)
-10.5>DF00100 OFF
-10.5<=DF00100<=10.5 ON
DF00100>10.5 OFF