3L046-5 KPC CG
3L046-5 KPC CG
3L046-5 KPC CG
模块化的S7-300/400系统，可通过特殊模块实现系统的扩展，这个特殊模块叫接口模块。S7-300有两种扩展方式，IM365-IM365和IM360-IM361; S7-400 IM460-1/461-1可为扩展机架提供电源，IM460-0/461-0实现集中式扩展，IM460-3/461-3以及IM460-4/461-4则可实现分布式扩展，IM463-2可连结S5扩展机架。本文对所使用的接口模块，以及配置方式进行说明。 介绍了针对西门子S7-300/400系统供电设计的一般原则，详细介绍了针对CPU电源、机架电源、模块工作电源、传感器电源的设计原则，给出了详细的处理措施，另外还对S7-300/400 110模块的接线的一些注意事项进行了汇总，希望通过本文档，能给用户以工程实施的帮助和指导。
工业现场严重的干扰，会通过工控机电源对工控系统造成严重危害，供电系统设计的好坏直接影响到控制系统的可靠性。对于应用PLC的工控系统，在设计供电系统时应考虑下列因素：供电与接地系统的合理设计；电源系统的抗干扰性；外部设备失电时不应影响P LC的供电，控制系统不允许断电的场合供电电源的冗余等．西门子S7-300/400系列可编程控制器是专门为工业控制设计的，对于S7-300/400来说，电源系统一般会设计到三种电源类型：CPU电源，模块工作电源，传感器电源，如何合理布局三种电源对系统的工作稳定性至关重要，合理的电源设计才能保证整个系统的可靠．
S485, RS232. All interfaces are electrical isolation
Away. And the redundant operation is realized by two redundant field controllers.
Fi8i0f card is a triple can bus protocol interface card (rate 1mbd) used to connect industrial ial “conventional process control station
The i/0 protection unit of the PS is used to receive process signals from the rack mounted i/0 modules supported by the PS. Each field controller PS can only be configured
-Block fi810f card. — The two fi810f interface cards on the redundant PS. can be switched redundantly.
S800 and S900 are distributed i/0 for process control stations. They communicate with their controllers through Prof ibusdp Fieldbus
Communication, which can be installed in the controland PA three levels, DP communication rate can be as high as 12Mb. The CAN (DIN/IS011898 standard) bus
The biggest feature is its super sturdiness and data security. The system of course also supports Modbus. The communication with the intelligent field instrument is through
IART protocol or field bus (31. 25Kb ProfibusPA and FF bus).
The system communication between the operation management level and the process control level is realized by Di giNetS network (Industrial Ethernet/IEEE802.3 standard),
Users can choose the communication transmission medium
