ÔÚʵ¼Ê¹¤³ÌÏîÄ¿ÖУ¬ÍùÍù»áÔÚϵͳÖÐʹÓÃÎ÷ÃÅ×Ó¸÷ϵÁеÄ×éºÏÀ´ÊµÏÖÏîÄ¿µÄ¸ü¼Ñ½â¾ö¼Æ»®£¬Õâʱ¾ÍÐèÒª¶ÔÖÖÖÖϵÁеÄÎ÷ÃÅ×Ó PLCÖ®¼äʵÏÖͨѶ¹¦Ð§¡£±¾ÎÄÏÂÃæ½éÉÜÒ»ÏÂÎ÷ÃÅ×ÓPLC?S7-200ϵÁÐÓëÎ÷ÃÅ×ÓPLC S7-300ϵÁÐÖ®¼äµÄPROFIBUS DPͨѶҪÁ죬¹©Óû§ÔÚʵ¼ÊÏîÄ¿µ÷ÊÔÀú³ÌÖнøÐвο¼¡£
Î÷ÃÅ×ÓPLCÖ®¼äPROFIBUS DPͨѶ
ÔÚÎ÷ÃÅ×ÓPLC S7-200ϵÁкÍÎ÷ÃÅ×ÓPLC S7-300ϵÁÐÖ®¼ä£¬Óû§¿ÉÒÔʹÓÃPROFIBUS DPͨѶ·½·¨½øÐÐÊý¾Ý½»»»£¬ÊµÏÖÒªÁìÈçÏ£º
1. Ê×ÏÈ£¬Óû§ÔÚÎ÷ÃÅ×ÓPLC±à³ÌÈí¼þSTEP7ÖÐн¨ÏîÄ¿£¬²¢ÇÒ²åÈëÒ»¸öS7-300µÄÕ¾£»
2. È»ºóÔÚÑ¡ÖÐSTEP7µÄÓ²¼þ×é̬´°¿ÚÖеIJ˵¥£ºÑ¡Ïî->×°ÖÃÐÂGSDÎļþ£¬µ¼ÈëSIEM089D.GSDÎļþ£¬×°ÖÃEM277´ÓÕ¾ÅäÖÃÎļþ£»
3. Óû§ÔÚµ¼ÈëGSDÎļþºó£¬ÔÚÓÒ²àµÄÉ豸ѡÔñÁбíÖÐÕÒµ½EM277´ÓÕ¾£¬PROFIBUS DP->ÌØÁíÍâÏÖ³¡É豸->Î÷ÃÅ×ÓPLC->EM277£¬²¢ÇÒÆ¾¾ÝͨѶ×Ö½ÚÊý£¬Ñ¡ÔñÒ»ÖÖÅäÖã¬ÀýÈ磺ѡÔñ32×Ö½ÚÈë/32×Ö½Ú³öµÄ·½·¨£»
4. ÔÚSTEP7ÖУ¬È·¶¨Î÷ÃÅ×ÓPLC S7-300Ó²¼þ×é̬ÖÐËùÉèÖõÄEM277µØµã£»
5. ×é̬Íê³ÉϵͳµÄÓ²¼þÅäÖúó£¬Óû§½«±àÒëÏÂÔØµ½Î÷ÃÅ×ÓPLC S7-300µÄCPUÖС£ÔÚÎ÷ÃÅ×ÓPLC S7-200¶ÏµçµÄÇé¿öÏ£¬½«EM277µÄ²¦Â뿪¹Ø²¦µ½ÓëÎ÷ÃÅ×ÓPLC S7-300Ó²¼þ×é̬µÄÉ趨ֵһÖ£»
6. Óû§ÔÚÎ÷ÃÅ×ÓPLC S7-200Öбàд³ÌÐò½«½øÐн»»»µÄÊý¾Ý´æ·ÅÔڵصã¶ÎÖУ¬ÀýÈ磺VB0-VB63£¬¶ÔÓ¦Î÷ÃÅ×ÓPLC S7-300µÄPQB0-PQB31ºÍPIB0-PIB31£¬È»ºó·¿ª±à³ÌÈí¼þSTEP7ÖеıäÁ¿±íºÍSTEP7 MicroWin SP9µÄ״̬±í½øÐÐ¼à¿Ø£¬ÅжÏÊý¾Ý´«ÊäÊÇ·ñÕýÈ·¡£
Î÷ÃÅ×ÓPLC S7-200ϵÁкÍS7-300ϵÁж¼¾ßÓÐÇ¿´óµÄͨѶ¹¦Ð§£¬ÎªÓû§ÔÚ¹¤Òµ¿ØÖÆÁìÓòÖÐÌṩ½â¾öÒªÁìµÄͬʱ£¬ËüÃÇÖ®¼ä¿ÉÒÔÁé»îµÄÅäÖã¬Í¨¹ý¶àÖÖ·½·¨ÊµÏÖͨѶ¹¦Ð§£¬ÀýÈ磺PROFIBUS DPͨѶ£¬´Ó¶øÎªÕûÌ׿ØÖÆÏµÍ³µÄÊý¾Ý½»»»ÌṩÁ˰ü¹Ü¡£