ÏÖÔÚÉÏλ»úϵͳÖÐÐí¶àÒªÇó¾ß±¸Á÷Á¿¼ÆµÄÁ÷Á¿Àۼƹ¦Ð§£¬ÓÉ´ËÒý³öµÄ¼¸¸öÎÊÌ⣬ÆÚÍûÓë¸÷ÈË·ÖÏí¡£
ÎÊÌâ1£º×ÔÐбàдÁ÷Á¿ÀۼƳÌÐò
×ÔÐбàдÁ÷Á¿ÀۼƳÌÐòµÄÔÀí£¬×Åʵ¾ÍÊÇ»ý·ÖµÄ¸üÔʼËã·¨¿´·¨£¬°Ñµ¥Î»Ð¡¾àÀëʱ¼äÄÚµÄ˲ʱÁ÷Á¿³ËÒÔµ¥Î»¾àÀëʱ¼ä£¬»ñµÃµ¥Î»Ð¡¾àÀëʱ¼äÄÚµÄÁ÷Á¿£¬ÔÙ°ÑÕâЩСÁ÷Á¿ÀÛ¼ÓÆðÀ´£¬¾ÍµÄµ½ÁËÀÛ¼ÆÁ÷Á¿¡£
ÔÚÁ÷Á¿ÀۼƱà³ÌÖо³£»áÓöµ½ÊµÊý¼Ó·¨ÎÊÌ⣬ʵÊý¼Ó·¨ÔËËãµÄ×¢ÖØÊÂÏîÒ²Ó¦µ±ÒýÆð±à³ÌÖ°Ô±µÄÖØÊÓ£¬Çë¿´ÏÂÀý³ÌÐò(¼ÙÉèÆäÔÚOB35Öб»Å²Óã¬Ä¿µÄΪÿ¸ôһ׼ʱ¼ä¾àÀë¾ÍÀÛ¼ÆÒ»´ÎÁ÷Á¿)
L MD0 //ÀÛ¼ÆÁ÷Á¿´æ´¢Öµ
L MD4 //Á÷Á¿Ë²Ê±Öµ
+R
T MD 0
ÒÔÉϵijÌÐòÊÇ·ñ±£´æÎÊÌ⣿
Ðí¶àÈË»áÒÔΪûÓÐÎÊÌ⣬µ«ÏÖÕæÏàÐÎÊǴ˳ÌÐòÔÚÔËÐÐÒ»¶Îʱ¼äºó¾Í½«·ºÆð¹ýʧ¡£´Ë³ÌÐòÔÚÔËÐÐÖ®³õÊÇÕý³£µÄ£¬ÓÉÓÚÀÛ¼ÆÁ÷Á¿³õʼֵ¼°Á÷Á¿Ë²Ê±Öµ¶¼ÎªÒ»¸öºÜСµÄ¸¡µãÊý£¬Á½ÊýÏà¼Óºó£¬Ð§¹û׼ȷ¡£¿ÉÊǵ±Ò»¶Îʱ¼äºó£¬ÀÛ¼ÆÁ÷Á¿µÄÊýÖµÖð½¥Ôö´ó£¬µ±ËüÓë˲ʱÁ÷Á¿µÄÊýÖµÏà²îºÜÔ¶µÄʱ¼ä£¬Á½ÕßÖ´Ðмӷ¨²Ù×÷ºó£¬Ë²Ê±Á÷Á¿µÄÊýÖµ½«±»ºöÂÔµô(Èç9999990.0Óë0.2×ö¼Ó·¨²Ù×÷)¡£×Åʵ¾ß±¸ÅÌËã»ú֪ʶµÄÈ˶¼Ó¦µ±ÇåÎúÕâÒ»µã£¬ÕâÊÇÓÉÓÚ¸¡µãÊýµÄ´æ´¢»úÖÆÔì³ÉµÄ£¬ÊÇËùÓÐÅÌËã»ú·½Ãæ±à³Ì¶¼ÐèҪ˼Á¿µÄÎÊÌâ¡£Õâ¸öÎÊÌâ¿ÉÒÔͨ¹ýʹÓöþ´ÎÀÛ¼Ó»ò¶à´ÎÀÛ¼ÓµÄÒªÁìÀ´½â¾ö¡£ÒÔÊÇÔÚ±à³ÌʱӦ×èÖ¹ÊýÄ¿¼¶Ïà²îÌ«¶àµÄ¸¡µãÊýÖ®¼ä¾ÙÐÐÔËËã¡£Ðí¶àÈË·´Ó¦¡°¼Ó·¨Ö¸ÁîÇ·ºÃÓÃÁË¡±£¬ºÜÓпÉÄܾÍÊÇÊýÄ¿¼¶Ïà²îÐí¶àµÄʵÊý¾ÙÐÐÁ˼ӷ¨ÔËËã¡£
ÎÊÌâ2£ºÀÛ¼ÆÁ÷Á¿Îó²îÎÊÌâ
¹ØÓÚ»ý·ÖËã·¨£¬È¡Ð¡µÄ¾ØÐζÔÁ÷Á¿¾ÙÐÐÀۼƣ¬Ò»¶¨ÊǾØÐλ®·ÖԽϸ£¬Îó²îԽС£¬²»±£´æÎó²îÊDz»¿ÉÄܵġ£
ÎÊÌâ3£ºÁ÷Á¿¼ÆÓëPLC×é³ÉµÄϵͳµÄÎó²î
Á÷Á¿¼ÆÓжàÖÖ¶àÑù£¬ÏÂÃæ¾ÙЩÀý×Ó£º
1¡¢Á÷Á¿¼Æ×Ô¼ºÃ»ÓÐÀÛ¼ÆÁ÷Á¿¹¦Ð§£¬µ«¿ÉÒÔ°Ñ˲ʱÁ÷Á¿ÒÔÄ£ÄâÁ¿µÄ·½·¨(ÀýÈç4-20mA)Êä³ö¡£
´ËʱÀÛ¼ÆÁ÷Á¿µÄ¸ü´óÎó²î¿ÉÒÔ¹ÀËãΪ£º
Á÷Á¿¼Æ×Ô¼ºÎó²î * Á÷Á¿¼ÆD/AÎó²î * Ä£ÄâÁ¿Ä£¿éA/DÎó²î * PLCÁ÷Á¿ÀÛÅÌËã·¨Îó²î
¼ÙÉèÉÏÃæËùÓÐÎó²î¶¼ÊÇ1%£¬Ôò¸üºóµÄÎó²îԼΪ£º4.06%
1.01*1.01*1.01*1.01=1.0406
¹ØÓÚijЩÁ÷Á¿¼Æ£¬×Ô¼ºµÄ˲ʱÁ÷Á¿Îó²î¿ÉÄܾÍÊÇ3%£¬ÒÔÊÇÕâÑùµÄϵͳÀÛ¼ÆÁ÷Á¿µÄÎó²î¿ÉÄÜ»¹Òª´óЩ¡£
2¡¢Á÷Á¿¼Æ×Ô¼ºÃ»ÓÐÀÛ¼ÆÁ÷Á¿¹¦Ð§£¬µ«¿ÉÒÔ°Ñ˲ʱÁ÷Á¿ÒÔÊý×ÖÁ¿µÄ·½·¨Êä³ö¡£
ÓÐЩÁ÷Á¿¼ÆÌṩÊý×ÖÁ¿½Ó¿Ú£¬¿ÉÒÔÅþÁ¬PLCµÄÊý×ÖÁ¿ÊäÈëÄ£°å£¬Á÷Á¿¼ÆÿÁ÷¹ýÒ»¶¨Á÷Á¿ºó(ÀýÈç0.1¶Ö)£¬´ËÊäÈëµã¾Íµ¼Í¨Ò»´Î£¬PLC¾Í°ÑÀÛ¼ÆÁ÷Á¿ÀÛ¼Ó0.1¶Ö¼´¿É¡£´ËÀàϵͳ×èÖ¹ÁËA/D£¬D/Aת»¯µÄÎó²î£¬ÒÔ¼°PLCÀÛÅÌËã·¨Îó²î¡£¿ÉÊǻ᷺Æðһ׼ʱ¼äÄÚÀÛ¼ÆÁ÷Á¿Îȹ̻¯µÄÇéÐΣ¬ÊµÊ±ÐÔÇ·ºÃ(ÿ0.1¶ÖÀÛ»ýµÄʱ¼ä)¡£
3¡¢Á÷Á¿¼Æ×Ô¼ºÓÐÀÛ¼ÆÁ÷Á¿¹¦Ð§£¬Í¬Ê±¿ÉÒÔ°Ñ˲ʱÁ÷Á¿ÒÔÄ£ÄâÁ¿µÄ·½·¨(ÀýÈç4-20mA)Êä³ö£¬µ«ÎÞ·¨½«ÀÛ¼ÆÁ÷Á¿ÊýÖµËͳö¡£
Á÷Á¿¼Æ×Ô¼ºÀÛ»ýÁ÷Á¿µÄÊýÖµ£¬¸üºóºÜÓпÉÄÜÓëPLCµÄÀÛ¼ÆÁ÷Á¿ÊýÖµÏà²îºÜ´ó£¬Ôµ¹ÊÔÓÉ¿ÉÄÜÊǶ෽ÃæÔì³ÉµÄ£¬³ýȥϵͳÀÛ¼ÆÁ÷Á¿Îó²îµÄÒòËØ£¬ÈôÊÇPLCϵͳĥÁ·Ê±£¬Á÷Á¿¼Æ»¹¼ÆÁ¿£¬ÔòPLCÎÞ·¨ÀÛ»ýÕⲿ·ÖÁ÷Á¿¡£
4¡¢Á÷Á¿¼Æ×Ô¼ºÓÐÀÛ¼ÆÁ÷Á¿¹¦Ð§£¬Í¬Ê±¿ÉÒÔͨ¹ýͨѶµÄ·½·¨£¬°Ñ˲ʱÁ÷Á¿¼°ÀÛ¼ÆÁ÷Á¿ÊýÖµË͸øPLC¡£ÕâÖÖÇéÐθüÀíÏ룬µ«ÏµÍ³µÄ±¾Ç®Ò²¸ü¸ß¡£
......
¸ü¶àÄÚÈݽӴýÓëÎÒÃǽ»Á÷¡£