
°éËæÒÔÌ«ÍøµÄ½øÒ»²½³É³¤£¬¼°ÆäÔÚ¹¤¿ØÉ̽çµÄÓ¦Óã¬Ô½À´Ô½¶àµÄ²úÆ·»áÌṩÒÔÌ«Íø½Ó¿Ú;µ«ÔÚÒ»¶¨Ê±¼äÄÚ£¬Ö»Ìṩ´®¿ÚͨѶµÄÉ豸ÈÔ½«´æÔÚ¡£Òò´Ë£¬ÒªÍ¨¹ýÒÔÌ«Íø¼¯³É´®¿ÚÉ豸£¬Ê¹Óô®¿Úµ½ÒÔÌ«ÍøµÄת»»Æ÷¡ª¡ª´®¿ÚÉ豸ÁªÍø·þÎñÆ÷ÊDz»´íµÄÑ¡Ôñ¡£
´®¿Ú·þÎñÆ÷½â¾öµÄÊÇRS232/485/422´®¿Úµ½Íø¿ÚµÄת»¯£¬ÄÇôת»¯ÎªÍø¿ÚÖ®ºó£¬¿Í‘ôÈí¼þÈçºÎºÍת»»Æ÷ͨÐÅÄØ¡£´®¿Úת»»Æ÷ÌṩÈí¼þ¹æ»®´óÖÂÓÐ4ÖÖ£ºÐéÄâ´®¿Ú¡¢Socket±à³Ì¡¢Ê¹ÓÃDLL¿â¡¢Modbus TCP¡£
ÐéÄâ´®¿Ú£º¼´¿Í‘ôÔÚʹÓÃTCP/IP´®¿Ú·þÎñÆ÷ºó£¬ÎÞÐèÐÞ¸ÄÔÓеÄÈí¼þ(´®¿ÚÉ豸Ӧ¸ÃÓÐÒ»¸öÔÚ¼ÆËã»úÉÏÔËÐеÄÓëÉ豸ͨÐŵÄÈí¼þ)£¬Ê¹ÓÃÓÐÈË´®¿Ú·þÎñÆ÷Èí¼þ³ÌÐò¿ÉÒÔÐéÄâ³öÀàËÆCOM4¡¢COM5µÈµÄÐéÄâ´®¿Ú£¬È»ºóͨ¹ýÈí¼þ½«COM4¡¢COM5ºÍÖÆ¶¨µÄ´®¿Ú·þÎñÆ÷°ó¶¨¡£Ö®ºó£¬¿Í‘ôÈí¼þ´ò¿ªCOM4¡¢COM5£¬¾ÍͬÔÀ´´ò¿ªCOM1µÈÓ²¼þ´®¿ÚÒ»ÑùʹÓÃÁË¡£Ê¹ÓÃÐéÄâ´®¿Ú¶ÔÓÚÒÑÓд®¿ÚÈí¼þµÄ¿Í‘ôÊÇ¿ÉÒÔ¿¼Âǵ쬵«ÊǶÔÓÚ»¹Î´Éè¼ÆÈí¼þµÄ¿Í‘ô£¬½¨ÒéʹÓÃSocket±à³Ì£¬ÒòΪSocket±à³Ì±ÈÐéÄâ´®¿ÚµÄЧÂʸü¸ß£¬Ò²ÎÞÐè°²×°Çý¶¯¡£
Socket±à³Ì£º¾ÍÊÇÀûÓÃWindows/LinuxµÈ²Ù×÷ϵͳÉϵĿª·¢»·¾³¿ª·¢ÍøÂç³ÌÐò£¬Ö±½ÓºÍTCP/IPת»»Æ÷ͨÐÅ¡£ÐÒéÊÇ͸Ã÷´«Ê䣬¼´ÍøÂç·¢ËÍʲô´®¿Ú¾ÍÊÕµ½Ê²Ã´£¬·´Ö®ÒàÈ»¡£¿Í‘ô¿ÉÒÔÑ¡ÔñVC¡¢VB¡¢Delphi¡¢C#µÈ¿ª·¢»·¾³ÌṩµÄSocket±à³Ì£¬ÀýÈçÏò´¦ÓÚ·þÎñÆ÷ģʽµÄ´®¿Ú·þÎñÆ÷Á¬½Ó¾ÍÊǵ÷ÓÃConnectº¯Êý£¬²ÎÊý¾ÍÊÇ´®¿Ú·þÎñÆ÷µÄIPºÍ¶Ë¿Ú¡£
ʹÓÃDLL¿â£ºDLLÊÇʹÓÃSocket±à³Ì·â×°£¬¶Ô´®¿Ú·þÎñÆ÷»ù±¾²Ù×÷µÄ¶¯Ì¬Á¬½Ó¿â¡£¿Í‘ô¿ÉÒÔʹÓÃDLL¿âʵÏÖ¶Ô´®¿Ú·þÎñÆ÷µÄËÑË÷¡¢²ÎÊýÉèÖá¢Í¨ÐʦÄÜ¡£ÓëSocket±à³ÌÏà±È£¬DLL¿âµÄ¹¦ÄܸüΪǿ´ó£¬Ò²¸ü·½±ãµ÷Óᣵ«ÊǶÔÓÚÊìÏ¤ÍøÂç±à³ÌµÄ¿Í‘ôÀ´Ëµ£¬¿Í‘ô»¹ÊÇÏ£Íû×Ô¼ºÓÃSocket±à³ÌÉè¼Æ³ÌÐò£¬Ò²²»Ïë×Ô¼ºµÄÈí¼þ´øÒ»´ó¶ÑDLL¡£
Modbus TCP£º¾ÍÊǿ͑ôÈí¼þʹÓñê×¼µÄModbus TCPÐÒ飬´®¿ÚתTCP/IP¿ÉÒÔÖ±½Ó½«Íø¿ÚµÄModbus TCPÊý¾ÝÁ÷ת»¯ÎªModbus RTUÊý¾ÝÁ÷£¬ÔÚ´®¿Ú·þÎñÆ÷µÄ´®¿Ú¶Ë¿ÉÒÔÒÔModbus RTU·½Ê½ºÍ¿Í‘ôµÄ´®¿ÚÉ豸ͨÐÅ¡£´®¿Ú·þÎñÆ÷¿ÉÒÔ×÷ΪModbusÍø¹ØÊ¹Óã¬ÊµÏÖ±ê×¼Modbus TCPÈí¼þ·ÃÎʱê×¼µÄModubus RTUÉ豸¡£
´®¿Ú·þÎñÆ÷ÊÇÓÃÀ´½«TCPÍøÂçÊý¾Ý°ü»òUDPÊý¾Ý£¬Óë1·RS232ºÍ1·RS485½Ó¿ÚÊý¾ÝʵÏÖ͸Ã÷´«ÊäµÄÉ豸¡£¹¦ºÄµÍ¡¢´îÔØARM´¦ÀíÆ÷£¬Ëٶȿ졣ģ¿éÄÚ²¿¼¯³ÉTCP/IPÐÒéÕ»¿ÉÒÔÇáËÉÍê³ÉǶÈëʽÉ豸µÄÍøÂ繦ÄÜ¡£¼¯³É10/100M ×ÔÊÊÓ¦ÒÔÌ«Íø½Ó¿Ú¡£´®¿ÚͨÐÅ×î¸ß²¨ÌØÂʸß1024Kbps£¬¾ßÓÐTCP Server¡¢TCP Client¡¢UDP¡¢Httpd ClientµÈ¹¤×÷ģʽ²úÆ·ÒѾ¾¹ýÑϸñ¿¼Ñ飬ÔÚÒøÐС¢¹«Â·¡¢´óÐ͹«Ë¾ÍøÂç¡¢ÓÐÉãÏñÍ·µÄ·±Ã¦ÍøÂçÒÔ¼°Í¨¹ý¹âÏËתÒÔÌ«ÍøµÈ¹¹½¨µÄ¸´ÔÓÍøÂç»·¾³¾ùÓгɹ¦Ó¦Óá£
ÒÔÌ«ÍøºÍ´®ÐÐͨÐÅÓÐÊ²Ã´Çø±ð?
1¡¢ÒÔÌ«ÍøÉ豸µÄÅäÖøü¼ÓÁé»î·½±ã
¶à¸öRS232´®¿ÚÉ豸Óë¼ÆËã»úͨÐÅÒ»°ã¶¼ÊÇÔÚ¼ÆËã»úPCI²å²ÛÉÏͨ¹ý¶à´®¿Ú¿¨»òÕßͨ¹ýUSB´®¿ÚÁ¬½ÓUSBת´®¿Ú¼¯Ï߯÷À´ÊµÏÖRS232´®¿ÚµÄÀ©Õ¹£¬Ã¿¸ö¼ÆËã»úµÄPCI²å²Û»òÕßUSB½Ó¿Ú¶¼ÊÇÓÐÒ»¶¨µÄÊýÁ¿ÏÞÖÆ£¬´Ó¶øÊ¹µÃÓë¼ÆËã»úͨÐŵÄRS232´®¿ÚÉ豸µÄÊýÁ¿Êܵ½ÏàÓ¦µÄÏÞÖÆ¡£¶øRS485×ÜÏßËäÈ»²¼Ïß¼òµ¥£¬¸ºÔØÉ豸¶à£¬Í¨ÐžàÀë¿ÉÒÔ´ïµ½1200Ã×£¬µ«ÊÇÆä²¼Ïß±ØÐë²ÉÓÃÊÖÇ£ÊÖ¾Õ»¨Á´ÍØÆË½á¹¹£¬ÔÚRS485×ÜÏßÉÏÔö¼ÓÉ豸ÐèÒª½«Ïß·²¼Éè¹ýÈ¥»òÕßͨ¹ýÔö¼Ó485ÖÐ¼ÌÆ÷»òÕß485¼¯Ï߯÷À´½â¾ö²¼ÏßÎÊÌ⣬¶øÒÔÌ«ÍøÔò²»Í¬£¬Ö»ÒªÊÇÓÐÍøÂçÐÅÏ¢¿ÚµÄµØ·½£¬¾Í¿ÉÒÔÖ±½Ó½«Ïà¹ØµÄÒÔÌ«ÍøÉ豸Á¬Ïß½ÓÈëÒÔÌ«Íø£¬¶øÇÒ½ÓÈëÉ豸µÄÊýÁ¿»ù±¾ÉÏÊÇûÓÐÏÞÖÆµÄ¡£
2¡¢Ö§³ÖÈȲå°Î¹¤×÷
Äܹ»ÔÚϵͳ¹¤×÷µÄʱºòÅäÖÃÏà¹ØÉ豸£¬ÎÞÐèֹͣϵͳ¹¤×÷¡£±ÈÈç¼ÆËã»úÐèÒªÔö¼Ó¶à´®¿Ú¿¨ÒÔÀ©³äRS232´®¿ÚÊýÁ¿µÄʱºò£¬ÐèÒª½«¼ÆËã»úÍ£»ú²¢´ò¿ª»úÏä²Å¿ÉÒÔÔö¼Ó¶à´®¿Ú¿¨£¬Í¬ÑùµÄµÀÀí£¬ÔÚRS485×ÜÏßÉÏÌí¼ÓÏàÓ¦µÄ485É豸µÄʱºò£¬Ò²ÊÇÐèÒª½«Ïß·ÖжϲſÉÒÔÔö¼ÓÏàÓ¦µÄÉ豸£¬¶øÔÚÒÔÌ«ÍøÉÏÔö¼ÓÏàÓ¦µÄÒÔÌ«ÍøÉ豸£¬Ö»ÐèÒªÔÚ¸½½üµÄÐÅÏ¢¿ÚÉϽÓÉÏÍøÏ߾ͿÉÒÔ£¬ÔÙͨ¹ý¼ÆËã»úÉϵÄÏà¹ØÈí¼þ½øÐÐÅäÖþͿÉÒÔÕý³£¹¤×÷¡£
3¡¢¼òµ¥Ò×Ó㬺óÆÚµÄά»¤·½±ã¼ò½Ý
²»¹ÜÊÇRS232É豸»¹ÊÇRS485×ÜÏßͨÐÅÒ»°ã¶¼ÊÇÖ»Ó뵥̨¼ÆËã»ú½øÐÐͨÐÅ£¬ºÜÄÑÐγÉË«·þÎñÆ÷ÈßÓàÈȱ¸·Ýϵͳ£¬¶øÔÚÒÔÌ«ÍøÉÏ¿ÉÒԷdz£ÈÝÒ×µÄÅäÖÃË«·þÎñÆ÷ÈßÓàÈȱ¸·Ýϵͳ¡£Í¬ÑùµÄµÀÀí£¬»ùÓÚRS232´®¿ÚͨÐÅ»ò»ùÓÚRS485×ÜÏßͨÐÅ£¬²»ÄÜÐγÉÈßÓàÁ´Â·£¬Ò»µ©³öÏÖÎÊÌâ¾Í¿ÉÄÜÕû¸öϵͳ±ÀÀ££¬ÌرðÊÇRS485×ÜÏߣ¬ÔÚRS485×ÜÏßÉϳöÏÖÎÊÌâ(±ÈÈç¶Ì·)£¬ºÜÈÝÒ×µ¼ÖÂÕû¸öϵͳ²»ÄÜʹÓ㬶øÇÒÔÚRS485×ÜÏßÉϲéÕÒ¹ÊÕϵã·Ç³£À§ÄÑ£¬ÐèÒªÒ»¸öÒ»¸öµÄÈ¥ÅŲ顣¶ø»ùÓÚ¹¤ÒµÒÔÌ«Íø×÷ΪͨÐÅÊÖ¶ÎÔò¿ÉÒÔÐÒÃâÀàËÆÎÊÌ⣬²ÉÓù¤ÒµÒÔÌ«Íø½»»»»ú²¼Éè»·ÐÎÈßÓàÁ´Â·µÄ¹¤ÒµÍøÂ磬һµ©Ä³¸öÁ´Â·³öÏÖÎÊÌ⣬¿ÉÒÔÔÚ20msÖ®ÄÚ×ÔÓú»Ö¸´²¢¼°Ê±¸æ¾¯Ìáʾά»¤¡£
4¡¢¸ßÀ©Õ¹ÐԺ͸ßÀ©³äÐÔ£¬·Ç³£ÊÊÓ¦µ¯ÐÔ²¼Ïß
ÒÔÌ«ÍøÉ豸ʹÓÃÈȲå°Î¹¤×÷ÒÔ¼°ÅäÖÃÁé»î·½±ã£¬²ÉÓÃÒÔÌ«Íø×÷ΪͨÐÅÊֶοÉÒÔûÓоàÀëÉϺÍÊýÁ¿ÉϵÄÏÞÖÆ£¬RS485×ÜÏßͨОàÀëΪ1200Ã×£¬¿ÉÒÔͨ¹ýÔö¼Ó485ÖÐ¼ÌÆ÷»òÕßͨ¹ý¹âÏËmodemת»»Îª¹âÐźÅͨ¹ý¹âÏË´«Êä´Ó¶ø´ïµ½ÑÓ³¤Í¨ÐžàÀëµÄ×÷Ó㬵«ÊÇ´«Êä¾àÀë×ÜÊÇÓÐÒ»¶¨µÄÏÞÖÆ£¬¶øÍ¨¹ýÒÔÌ«Íø¿ÉÒÔÁ¬½ÓÖÁ»¥ÁªÍø£¬Í¨¹ý»¥ÁªÍø¿ÉÒÔÔÚÊÀ½çÈκÎÒ»¸öÓÐÍøÂçÁ¬½ÓµÄµØ·½½øÐÐÊý¾Ý½»»»£¬Í¬ÑùµÄ£¬RS485×ÜÏß³¤¾àÀëͨÐŵÄ×î´óËÙÂÊΪ110Kbps£¬¶øÏÖÔÚ¿ìËÙÒÔÌ«Íø(100M)ÒѾ»ù±¾ÆÕ¼°£¬Ç§Õ×ÒÔÌ«ÍøÔòÕýÔÚÖð²½½øÈ빤ҵ¿ØÖÆÉ̽磬ËùÒÔÒÔÌ«ÍøµÄͨÐÅÈÝÁ¿ÒÔ¼°ÔÚÒÔÌ«ÍøÉÏͨÐŵÄÉ豸ÊýÁ¿»ù±¾ÉÏûÓÐÈκÎÏÞÖÆ¡£
ͨ¹ýÒÔÌ«ÍøÍ¨ÐÅʵÏÖÕæÕýµÄ¡°¹Ü¿ØÒ»Ì廯¡±£¬Ëæ×Ź¤Òµ¿ØÖÆ×Ô¶¯»¯³Ì¶ÈÒÔ¼°°ì¹«ÏµÍ³×Ô¶¯»¯³Ì¶ÈµÄ¼ÓÉÏÖÔÚÌá³öÁ˹¤Òµ¿ØÖÆÉ̽硰¹Ü¿ØÒ»Ì廯¡±µÄÄ¿µÄ£¬Ò²¾ÍÊÇ˵¹¤Òµ¿ØÖÆÏµÍ³Óë°ì¹«×Ô¶¯»¯ÏµÍ³Äܹ»½ôÃܽáºÏ£¬ÐÅÏ¢»¥Í¨ÓÐÎÞʵÏÖÎÞ·ì¶Ô½Ó¡£ÓÉÓÚÏÖÔڰ칫ϵͳ¶¼ÊÇ»ùÓÚÒÔÌ«Íø½øÐÐÊý¾Ý½»»»£¬ËùÓеÄÈí¼þ¶¼ÊÇ»ùÓÚÒÔÌ«ÍøÔËÐУ¬ÓëÒÔÌ«ÍøÉ豸ͨÐÅÎÞÐè×÷ÈκÎÐ޸ģ¬¿ÉÒÔÖ±½ÓÓë֮ͨÐÅ£¬Äܹ»¿ìËٵĽ«¹¤Òµ¿ØÖÆÍøÂçÖеÄÒÔÌ«ÍøÉ豸µÄÏà¹ØÊý¾ÝÕûºÏ½ø°ì¹«×Ô¶¯»¯ÏµÍ³¡£