Ëæ×Ź¤Òµ¼¼ÊõµÄ¿ìËÙ·¢Õ¹,Ïà¼Ì³öÏÖÁ˼¯É¢¿ØÖÆÏµÍ³ºÍÏÖ³¡×ÜÏß¿ØÖÆÏµÍ³,һЩÐÐÒµµ±ÖÐÓеÄÈËÈÏΪFCSÊÇÓÉPLC·¢Õ¹¶øÀ´µÄ;ÁíһЩÐÐÒµµÄÈËÈÏΪFCSÓÖÊÇÓÉDCS·¢Õ¹¶øÀ´µÄ¡£FCSÓëPLC¼°DCSÖ®¼ä¼ÈÓÐÃܲ»¿É·ÖµÄ¹ØÁª,ÓÖ´æÔÚ×ű¾ÖʵÄÇø±ð¡£
ÔÚ¹¤Òµ¹ý³Ì¿ØÖÆÖеÄÈý´ó¿ØÖÆÏµÍ³,·Ö±ðÊÇPLC¡¢DCS¡¢FCS
PLC¿ØÖÆÆ÷ÊÇÒ»ÖÖÊý×ÖÔËËã²Ù×÷µÄµç×Óϵͳ,רΪ¹¤Òµ»·¾³ÏµÄÓ¦ÓöøÉè¼Æ¡£Ëü²ÉÓÃÒ»Àà¿É±à³ÌµÄ´æ´¢Æ÷,ÓÃÓÚÆäÄÚ²¿´æ´¢³ÌÐò¡¢Ö´ÐÐÂß¼ÔËË㡢˳Ðò¿ØÖÆ¡¢¶¨Ê±¡¢¼ÆÊýÓëËãÊõ²Ù×÷µÈÃæÏòÓû§µÄÖ¸Áî,²¢Í¨¹ýÊý×Öʽ»òÄ£ÄâʽÊäÈë»òÊä³ö,¿ØÖƸ÷ÖÖÀàÐ͵Ļúе»òÉú²ú¹ý³Ì¡£
DCS¼¯É¢¿ØÖÆÏµÍ³£¬ÓֽмÆËã»ú·Ö²¼Ê½¿ØÖÆÏµÍ³,ËüÊÇ20ÊÀ¼Í70Äê´úÖÐÆÚѸËÙ·¢Õ¹ÆðÀ´µÄ,Ëü°Ñ¿ØÖƼ¼Êõ¡¢¼ÆËã»ú¼¼Êõ¡¢Í¼ÏñÏÔʾ¼¼ÊõÒÔ¼°Í¨Ðż¼Êõ½áºÏÆðÀ´,Ò²³Æ×÷4C¼¼Êõ£¬ÊµÏÖÁ˶ÔÉú²ú¹ý³ÌµÄ¼àÊÓ¡¢¿ØÖƺ͹ÜÀí¡£Ëü¼È´òÆÆÁ˳£¹æ¿ØÖÆÒÇ±í¹¦ÄܵľÖÏÞÐÔ,ÓֽϺõĽâ¾öÁËÔçÆÚ¼ÆËã»úϵͳ¶ÔÓÚÐÅÏ¢¡¢¹ÜÀíºÍ¿ØÖÆ×÷ÓùýÓÚ¼¯ÖдøÀ´µÄΣÏÕÐÔ¡£
FCSÏÖ³¡×ÜÏß¿ØÖÆÏµÍ³µÄºËÐÄÊÇ×ÜÏßÐÒé,»ù´¡ÊÇÊý×ÖÖÇÄÜÏÖ³¡É豸,±¾ÖÊÊÇÐÅÏ¢´¦ÀíÏÖ³¡»¯¡£
´óÐÍPLC¹¹³ÉµÄ¹ý³Ì¿ØÖÆÏµÍ³µÄ»ù±¾Ìصã
(1)´ÓÉϵ½ÏµĽṹ,PLC¼È¿ÉÒÔ×÷Ϊ¶ÀÁ¢µÄDCS,Ò²¿ÉÒÔ×÷ΪDCSµÄ×Óϵͳ¡£ (2)PID·ÅÔÚ¿ØÖÆÕ¾ÖÐ,¿ÉʵÏÖÁ¬ÐøPID¿ØÖƵȸ÷ÖÖ¹¦ÄÜ¡£
(3)¿ÉÓÃһ̨PCΪÖ÷Õ¾,¶ą̀ͬÀàÐÍPLCΪ´ÓÕ¾;Ò²¿ÉÓÃһ̨PLCΪÖ÷Õ¾,¶ą̀ͬÀàÐÍPLCΪ´ÓÕ¾,¹¹³ÉPLCÍøÂç¡£
(4)Ö÷ÒªÓÃÓÚ¹¤¿ØÖеÄ˳Ðò¿ØÖÆ,ÐÂÐÍPLCÒ²¼æÓбջ·¿ØÖƹ¦ÄÜ¡£
DCS¿ØÖÆÏµÍ³µÄ»ù±¾Ìصã
(1)´ÓÉϵ½ÏµÄÊ÷״ϵͳ,ÆäÖÐͨÐÅÊǹؼü¡£
(2)PIDÔÚÖжÏÕ¾ÖÐ,ÖжÏÕ¾Áª½á¼ÆËã»úÓëÏÖ³¡ÒÇÆ÷ÒDZíÓë¿ØÖÆ×°¡£
(3)ÊÇÊ÷×´ÍØÆËºÍ²¢ÐÐÁ¬ÐøµÄÁ´Â·½á¹¹,ÓдóÁ¿µçÀ´ÓÖмÌÕ¾²¢Ðе½ÏÖ³¡ÒÇÆ÷ÒÇ±í¡£
(4)ÐźÅϵͳ°üÀ¨¿ª¹ØÁ¿ÐźźÍÄ£ÄâÐźš£
(5)DCSÊÇ¿ØÖÆ(¹¤³Ìʦվ)¡¢²Ù×÷(²Ù×÷Ô±Õ¾)¡¢ÏÖ³¡ÒDZí(ÏÖ³¡²â¿ØÕ¾)µÄÈý¼¶½á¹¹¡£
FCS¿ØÖÆÏµÍ³µÄ»ù±¾Ìصã
(1)FCSÊÇ3C¼¼ÊõµÄÈںϡ£ËüÊÊÓÃÓÚ±¾Öʰ²È«¡¢Î£ÏÕÇøÓò¡¢Ò×±ä¹ý³Ì¡¢ÄÑÓÚ¶Ô¸¶µÄ·Ç³£»·¾³¡£
(2)ÏÖ³¡É豸¸ß¶ÈÖÇÄÜ»¯,ÌṩȫÊý×ÖÐźÅ;Ò»Ìõ×ÜÏßÁ¬½ÓËùÓеÄÉ豸¡£
(3)´Ó¿ØÖÆÊÒµ½ÏÖ³¡É豸µÄË«ÏòÊý×ÖͨÐÅ×ÜÏß,ÊÇ»¥ÁªµÄ¡¢Ë«ÏòµÄ¡¢´®Ðжà½Úµã¡¢¿ª·ÅµÄÊý×ÖͨÐÅϵͳȡ´úµ¥ÏòµÄ¡¢µ¥µã¡¢²¢ÐС¢·â±ÕµÄÄ£Äâϵͳ¡£
(4)¿ØÖƹ¦Äܳ¹µ×·ÖÉ¢¡£
DCS¿ØÖÆÏµÍ³ÓëPLC¿ØÖÆÏµÍ³µÄ±È½Ï
DCSÊÇÒ»ÖÖ¡°·Öɢʽ¿ØÖÆÏµÍ³¡±,¶øPLCÖ»ÊÇÒ»ÖÖ¿ØÖÆ¡°×°Öá±,Á½ÕßÊÇ¡°ÏµÍ³¡±Óë¡°×° Öá±µÄÇø±ð¡£ÏµÍ³¿ÉÒÔʵÏÖÈκÎ×°ÖõŦÄÜÓëе÷,PLC×°ÖÃֻʵÏÖ±¾µ¥ÔªËù¾ß±¸µÄ¹¦ÄÜ¡£ÍøÂç·½Ãæ,ÍøÂçÊÇ¿ØÖÆÏµÍ³µÄÖÐÊàÉñ¾¡£
DCSϵͳÈçHOLLiAS MACSϵͳµÄÍøÂç,ÓÉÉÏÖÁÏ·ÖÎªÏµÍ³ÍøÂçºÍ¿ØÖÆÍøÂçÁ½¸ö²ã´Î,ÏµÍ³ÍøÂçʵÏÖÏÖ³¡¿ØÖÆÕ¾Óëϵͳ²Ù×÷Ô±Õ¾µÄ»¥Á¬,¿ØÖÆÍøÂçʵÏÖÏÖ³¡¿ØÖÆÕ¾ÓëÖÇÄÜI/Oµ¥ÔªµÄͨѶ,ÐÅÏ¢´«Êäʵʱ¿É¿¿¡£
¶øPLCÒòΪ»ù±¾É϶¼Îª¸öÌ幤×÷,ÆäÔÚÓë±ðµÄPLC»òÉÏλ»ú½øÐÐͨѶʱ,Ëù²ÉÓõÄÍøÂçÐÎʽ»ù±¾¶¼Êǵ¥Íø½á¹¹¡£ÔÚÍøÂ簲ȫÉÏ,PLCûÓкܺõı£»¤´ëÊ©¡£
DCSÔÚÕû¸öÉè¼ÆÉÏÁôÓдóÁ¿µÄ¿ÉÀ©Õ¹ÐÔ½Ó¿Ú,Íâ½Óϵͳ»òÀ©Õ¹ÏµÍ³¶¼Ê®·Ö·½±ã,PLCËù´î½ÓµÄÕû¸öϵͳÍê³Éºó,ÏëËæÒâµÄÔö¼Ó»ò¼õÉÙ²Ù×÷Ô±Õ¾¶¼ÊǺÜÄÑʵÏֵġ£DCS°²È«ÐÔΪ±£Ö¤DCS¿ØÖÆÉ豸µÄ°²È«¿É¿¿,DCS²ÉÓÃÁËË«ÈßÓàµÄ¿ØÖƵ¥
Ôª,µ±ÖØÒª¿ØÖƵ¥Ôª³öÏÖ¹ÊÕÏʱ,¶¼»áÓÐÏà¹ØµÄÈßÓ൥ԪʵʱÎÞÈŵÄÇл»Îª¹¤×÷µ¥Ôª,±£Ö¤Õû¸öϵͳµÄ°²È«¿É¿¿¡£
PLCËù´î½ÓµÄϵͳ»ù±¾Ã»ÓÐÈßÓàµÄ¸ÅÄî,¾Í¸ü̸²»ÉÏÈßÓà¿ØÖÆ²ßÂÔ¡£ÌرðÊǵ±Æäij¸öPLCµ¥Ôª·¢Éú¹ÊÕÏʱ,²»µÃ²»½«Õû¸öϵͳͣÏÂÀ´,²ÅÄܽøÐиü»»Î¬»¤²¢ÐèÖØÐ±à³Ì¡£ËùÒÔDCSϵͳҪ±ÈPLC°²È«¿É¿¿ÐÔÉϸßÒ»¸öµÈ¼¶¡£DCSÓëPLCÓ²¼þ¿É¿¿ÐԲ¶à¡£PLCµÄÓÅÊÆÔÚÓÚÈí¼þ·½Ã棬PLC²ÉÓõÄÊÇ˳ÐòɨÃè»úÖÆ,PLCÔÚ¸ßËÙµÄ˳Ðò¿ØÖÆÖÐÕ¼Ö÷µ¼µØÎ»¡£PLCµÄÑ»·ÖÜÆÚÔÚ10msÃë×óÓÒ,¶øDCS¿ØÖÆÕ¾ÔÚ500ms×óÓÒ¡£
DCSʵÏÖ˳ÐòÁªËø¹¦ÄÜÏà¶ÔÓÚPLCÀ´½²ÊÇÈõÊÆ,ÇÒÂß¼Ö´ÐÐËٶȲ»ÈçPLC¡£Ïà¶Ô¶øÑÔ,PLC¹¹³ÉµÄϵͳ³É±¾¸üµÍ¡£DCSµÄÏÖ³¡¿ØÖÆÕ¾²ãͨ³£²ÉÓü¯ÖÐʽ¿ØÖÆ,¾¡¹ÜÖ§³ÖÔ¶³Ì·Ö²¼Ê½I/O,µ«ÓÉÓڳɱ¾ÔÒò,ºÜÉÙ²ÉÓ᣶øPLC»ùÓÚÏÖ³¡×ÜÏßµÄÔ¶³Ì·Ö²¼Ê½I/OÌå»ýС¸üÁé»îÒ×ÓÃ,ÄÜÓÐЧµØ½ÚÊ¡½ÓÏ߳ɱ¾¡£
FCS¿ØÖÆÏµÍ³ÓëDCS¿ØÖÆÏµÍ³µÄ±È½Ï
¿ÉÒÔ˵FCS¼æ±¸ÁËDCSÓëPLCµÄÌØµã,¶øÇÒ¿ç³öÁ˸ïÃüÐÔµÄÒ»²½¡£
1)FCSÊÇÈ«¿ª·ÅµÄϵͳ,Æä¼¼Êõ±ê×¼Ò²ÊÇÈ«¿ª·ÅµÄ,FCSµÄÏÖ³¡É豸¾ßÓл¥²Ù×÷ÐÔ,×°Öû¥Ïà¼æÈÝ,Òò´ËÓû§¿ÉÒÔÑ¡Ôñ²»Í¬³§ÉÌ¡¢²»Í¬Æ·ÅƵIJúÆ·,´ïµ½×î¼ÑµÄϵͳ¼¯³É;DCSϵͳÊÇ·â±ÕµÄ,¸÷³§¼ÒµÄ²úÆ·»¥²»¼æÈÝ¡£
2)FCSµÄÐźŴ«ÊäʵÏÖÁËÈ«Êý×Ö»¯,ÆäͨÐÅ¿ÉÒÔ´Ó×îµ×²ãµÄ´«¸ÐÆ÷ºÍÖ´ÐÐÆ÷Ö±µ½×î¸ß²ã,ΪÆóÒµµÄMESºÍERPÌṩǿÓÐÁ¦µÄÖ§³Ö,¸üÖØÒªµÄÊÇËü»¹¿ÉÒÔ¶ÔÏÖ³¡×°ÖýøÐÐÔ¶³ÌÕï¶Ï¡¢Î¬»¤ºÍ×é̬;DCSµÄͨÐŹ¦ÄÜÊܵ½ºÜ´óÏÞÖÆ,ËäÈ»ËüÒ²¿ÉÒÔÁ¬½Óµ½Internet,µ«ËüÁ¬²»µ½µ×²ã,ËüÌṩµÄÐÅÏ¢Á¿Ò²ÊÇÓÐÏÞµÄ,Ëü²»ÄܶÔÏÖ³¡É豸½øÐÐÔ¶³Ì²Ù×÷¡£
3£©FCSµÄ½á¹¹ÎªÈ«·Öɢʽ,Ëü·ÏÆúÁËDCSÖеÄI/Oµ¥ÔªºÍ¿ØÖÆÕ¾,°Ñ¿ØÖƹ¦ÄÜÏ·ŵ½ÏÖ³¡É豸,ʵÏÖÁ˳¹µ×µÄ·ÖÉ¢,ϵͳÀ©Õ¹Ò²±äµÃÊ®·ÖÈÝÒ×;DCSµÄ·ÖÉ¢Ö»Êǵ½¿ØÖÆÆ÷Ò»¼¶,ËüÇ¿µ÷¿ØÖÆÆ÷µÄ¹¦ÄÜ,Êý¾Ý¹«Â·¸üÊÇÆä¹Ø¼ü¡£
4)FCSµÄÈ«Êý×Ö»¯,¿ØÖÆÏµÍ³¾«¶È¸ß,¿ÉÒÔ´ïµ½ÍÁ0.1£¥;¶øDCSµÄÐźÅϵͳÊǶþ½øÖÆ»òÄ£ÄâʽµÄ,±ØÐëÓÐA/D¡¢D/A»·½Ú,ËùÒÔÆä¿ØÖÆ¾«¶ÈΪÍÁ0.5£¥¡£
5)FCS¿ÉÒÔ½«PID±Õ»·¹¦Äܷŵ½ÏÖ³¡µÄ±äËÍÆ÷»òÖ´ÐÐÆ÷ÖÐ,¼ÓÉÏÊý×ÖͨÐÅ,ËùÒÔËõ¶ÌÁ˲ÉÑùºÍ¿ØÖÆÖÜÆÚ,Ŀǰ¿ÉÒÔ´ÓDCSµÄÿÃë2-5´Î,Ìá¸ßµ½Ã¿Ãë10-20´Î,´Ó¶ø¸ÄÉÆÁ˵÷½ÚÐÔÄÜ¡£
6)ÓÉÓÚFCSʡȥÁË´óÁ¿µÄÓ²¼þÉ豸¡¢µçÀº͵çÀ°²×°¸¨ÖúÉ豸,½ÚÔ¼ÁË´óÁ¿µÄ°²×°ºÍµ÷ÊÔ·ÑÓÃ,ËùÒÔËüµÄÔì¼ÛÒªÔ¶µÍÓÚDCS¡£
FCSÊÇÒ»¸ö¿ª·ÅµÄ¡¢ÍêÈ«·Ö²¼Ê½µÄ¡¢ÖÇÄÜ¿ØÖƵÄϵͳ¡£µ«´«Í³DCS¡¢PLCϵͳÒѾ±»Ê¹ÓÃÁ˼¸Ê®ÄêÀ´,·¢Õ¹³ÉΪһ¸öʵÓÃÐ͵ġ¢¿É¿¿ÐԸߵÄϵͳ¡£Ëæ×ÅËüÃǸ÷×Եķ¢Õ¹,¶¼ÓÐÏò¶Ô·½¿¿Â£µÄÇ÷ÊÆ¡£ÏñÐÂÐ͵ÄDCSÒÑÓкÜÇ¿µÄ˳Ðò¿ØÖƹ¦ÄÜ;¶øÐÂÐ͵ÄPLC,ÔÚ´¦Àí±Õ»·¿ØÖÆ·½ÃæÒ²²»Èõ£¬²¢ÇÒÁ½Õß¶¼ÄÜ×é³É´óÐÍ¿ØÖÆÍøÂç¡£
Ïà¹ØÍÆ¼ö£º