CODESYS鐨凢loat锛孌INT锛孌WORD鏁版嵁澶у皬绔浆鎹�

鏃犲績椋炴壃 · 鍙戣〃浜� 2024-11-5 22:23:25

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FUNCTION SWAP : DWORD
VAR_INPUT
IN锛� DWORD;
END_VAR
VAR
END_VAR

SWAP:=SHL(IN,16) OR SHR(IN,16);
璇ユ柟娉曞彧閫傜敤浜嶥WORD锛屽鏋滄偍浣跨敤鐨勫彉閲忔槸DINT鎴朢EAL锛屽垯澶栭儴杩橀渶瑕佽浆鎹紝渚嬪锛�
aa := DWORD_TO_DINT(SWAP(bb));
cc := SWAP(DINT_TO_DWORD(dd));

2銆�Float绫诲瀷鐨勪氦鎹㈠ぇ灏忕锛岄渶瑕佸厛杞崲涓�16杩涘埗锛岀劧鍚庝娇鐢―INT杞崲鐨勬柟寮忎氦鎹㈠ぇ灏忕浠ュ悗锛屽湪杞崲涓哄皬鏁�濡傚浘锛�

TYPE DUT :
UNION
      float:REAL;
      diDint锛� DINT;
      dwDword锛� DWORD;
END_UNION
END_TYPE

FUNCTION 娴偣鏁拌浆鎹� : REAL
VAR_INPUT
      IN:REAL;
END_VAR
VAR_OUTPUT
END_VAR
VAR
      indut锛� Dut;
      outdut锛� Dut;
      outDword锛� DWORD;
      tempDword锛� DWORD;
END_VAR

indut.float:=IN;
tempDword:=indut.dwDword;
outDword:=SHL(tempDword,16) OR SHR(tempDword,16);
outdut.dwDword:=outDword;
娴偣鏁拌浆鎹�:=outdut.float;

3銆佹晥鏋滃鍥炬墍绀猴細

CODESYS鐨凢loat锛孌INT锛孌WORD鏁版嵁澶у皬绔浆鎹�

鎮ㄥ彲鑳介亣鍒扮殑闂锛�

鑱旂郴鎴戜滑浜嗚В鏇村锛�