Chapter 6 0BApplied Instructions API 0030~ 0035 Symbol: S 1 ： Data source 1 Double word/Long word Taking FOR= and DFOR= for example S 2 ： Data source 2 Double word/Long word Explanation: 1. The instructions are used to compare the value in S 1 with that in S 2 , and the values compared are floating-point numbers. Take the instruction FOR= for example. When the comparison result is that the value in S 1 is equal to that in S 2 , the condition of the instruction is met. When the comparison result is that the value in S 1 is not equal to that in S 2 , the condition of the instruction is not met. Example: When X1.0 is ON, or when the value in D1 is equal to that in D2, Y1.0 is ON.
6-14 Instruction code Operand Function D FOR※ S , S 1 2 Comparing the floating-point numbers Device X Y M S T C HC D L SM SR E PR K 16# “$” DF S 1 S 2 Pulse instruction 32-bit instruction (5-7 steps) 64-bit instruction (5-7 steps) - AH500 AH500 API 32-bit 64-bit Comparison operation result number instruction instruction ON OFF 0030 FOR＝ DFOR＝ S ＝S 1 2 S ≠S 1 2 0031 FOR＜＞ DFOR＜＞ S ≠S 1 2 S ＝S 1 2 0032 FOR＞ DFOR＞ S ＞S 1 2 S ≦S 1 2 0033 FOR＞＝ DFOR＞＝ S ≧S 1 2 S ＜S 1 2 0034 FOR＜ DFOR＜ S ＜S 1 2 S ≧S 1 2 0035 FOR＜＝ DFOR＜＝ S ≦S 1 2 S ＞S 1 2