坚信诚信经营,质量为首,诚信至上合作双赢,互赢自动化宣! 1756-OF8IH 1756-OF8IHK 1756-OF8IK 1756-OF8K 1756-OG16 1756-OG16-CC 1756-OH8I 1756-OH8I-CC 1756-ON8 1756-ON8-CC 1756-OV16E 1756-OV16E-CC 1756-OV32E 1756-OV32E-CC 1756-OW16I 1756-OW16IK 1756-OX8I 1756-OX8I-CC 1756-PA30XT 1756-PA50 1756-PA72 1756-PA72K 1756-PA75 1756-PA75K Okuma Main Card I - II Board # E4809-436-014-A Warranty Okuma CRPB-II Board # E4809-436-013-D, Warranty Okuma CRP Card II Board # E4809-436-018-C, Warranty OKUMA E4809-436-002-A USPP E4809436002A OKUMA E4809-436-016-D USPP E4809436016D OKUMA Memory Card 2 E4809-436-032A OKUMA OPUS 7000 FR board E4809-436-093, A911-2124 OKUMA E4809-436-015-B Okuma OSP E4809-436-CD-N-1 Back Plane Board OKUMA E4809-436-033-A USPP E4809436033A OKUMA OPUS 5000 2 MAIN BOARD 2 E4809-436-011-E 现在PLC的通讯功能越来越强大,很多PLC都支持多种通讯协议(有些需要配备相应的通讯模块),选择时要根据实际需要选择合适的通讯方式。 PLC系统的通信网络主要形式有下列几种形式: (1)PC为主站,多台同型号PLC为从站,组成简易PLC网络; (2)1台PLC为主站,其他同型号PLC为从站,构成主从式PLC网络; (3)PLC网络通过特定网络接口连接到大型DCS中作为DCS的子网; (4)**PLC网络(各厂商的**PLC通信网络)。