銆怌odesys銆戝崟绮惧害娴偣鏁拌浆鍗佸叚杩涘埗鐨勬柟娉�

钃濊壊娓咕 · 鍙戣〃浜� 2024-11-6 20:00:45

鏈€杩戦噰鐢ㄧ粰Modebus浠庣珯璁惧鍙戞暟鎹亣鍒颁簡鍗曠簿搴︽诞鐐规暟杞崄鍏繘鍒跺彂閫佺殑闂
闇€瑕佸皢绫讳技浜�  1.5 绛夊皬鏁�  -6400绛夋暟杞垚16杩涘埗鍙戦€佺粰浠庣珯
鍘熺悊姣旇緝澶嶆潅  锛�
鍏充簬16杩涘埗娴偣鏁�
瀵逛簬澶у皬涓�32-bit鐨勬诞鐐规暟锛�32-bit涓哄崟绮惧害锛�64-bit娴偣鏁颁负鍙岀簿搴︼紝80-bit涓烘墿灞曠簿搴︽诞鐐规暟锛夛紝
1銆佸叾绗�31 bit涓虹鍙蜂綅锛屼负0鍒欒〃绀烘鏁帮紝鍙嶄箣涓哄鏁帮紝鍏惰鏁板€肩敤s琛ㄧず锛�
2銆佺30锝�23 bit涓哄箓鏁帮紝鍏惰鏁板€肩敤e琛ㄧず锛�
3銆佺22锝�0 bit鍏�23 bit浣滀负绯绘暟锛岃涓轰簩杩涘埗绾皬鏁帮紝鍋囧畾璇ュ皬鏁扮殑鍗佽繘鍒跺€间负x锛�
鍒欐寜鐓ц瀹氾紝璇ユ诞鐐规暟鐨勫€肩敤鍗佽繘鍒惰〃绀轰负锛�
锛� (-1)^s * (1 + x) * 2^(e - 127)
闇€瑕佸厛灏嗘诞鐐规暟杞簩杩涘埗锛屽啀绠楁寚鏁板拰鍙栦綅璁＄畻锛屽緱鍑轰簩杩涘埗鍐嶈浆鍗佸叚杩涘埗銆�
鑰孋odesys鏈夋洿鍔犱紭闆呯殑瑙ｅ喅鏂规锛�
鍒涘缓鑱斿悎浣擄紙Union锛�
濡備笅
TYPE DUT :
UNION
   float: REAL;
   diDint: DINT;
   dwDWORD: DWORD;
END_UNION
END_TYPE

鍗冲彲寰楀埌娴偣鏁�1.5鐨勫崄鍏繘鍒跺€笺€傚啀鍐欎竴涓柟娉曟妸Dword鍒嗚В鎴�4涓猙yte锛屽氨鍙互鍙戦€佺粰浠庣珯璁惧浜嗐€�
鍚岀悊鑱斿悎浣撲篃鍙互瀹屾垚64浣嶅弻绮惧害娴偣鏁扮殑璁＄畻杞崲锛屽嵆浠嶭REAL杞琇WORD銆�

銆怌odesys銆戝崟绮惧害娴偣鏁拌浆鍗佸叚杩涘埗鐨勬柟娉�

鎮ㄥ彲鑳介亣鍒扮殑闂锛�

鑱旂郴鎴戜滑浜嗚В鏇村锛�