1794-ACNR15 1794-ACNR15
西门子PLC的网络是适合不同的控制需要制定的,也为各个网络层次之间提供了互连模块或装置,利用它们可以设计出满足各种应用需求的控制管理网络。西门子S7系列PLC网络采用3级总线复合型结构,zui底一级为远程I/O链路,负责与现场设备通信,在远程I/O链路中配置周期I/O通信机制。中间一级为Profibus现场总线或主从式多点链路。前者是一种新型现场总线,可承担现场、控制、监控三级的通信,采用令牌方式与主从轮询相结合的存取控制方式;后者为一种主从式总线,采月主从轮询式通信。zui高一层为工业以太网,它负责传送生产管理信息。在工业以太网通信协议的下层中配置以802.3为核心的以太网协议,在上层向用户提供TF接口,实现AP协议与MMS协议。
PLC要提供金字塔功能或者说要实现NBS或ISO模型要求的功能,采用单层子网显然是不行的。因为不同层所实现的功能不同,所承担的任务的性质不同,导致它们对通信的要求也就不一样。在上层所传送的主要是些生产管理信息,通信报文长,每次传输的信息量大,要求通信的范围也比较广,但对通信实时性的要求却不高。而在底层传送的主要是些过程数据及控制命令,报文不长,每次通信量不大,通信距离也比较近,但对实时性及可靠性的要求却比较高。中间层对通信的要求正好居于两者之间。
PLC网络的分级与生产金字塔的分层不是—一对应的关系,相邻几层的功能,若对通信要求相近,则可合并,由一级子网去实现。采用多级复合结构不仅使通信具有适应性,而且具有良好的可扩展性,用户可以根据投资情况及生产的发展,从单台PLC到网络、从底层向高层逐步扩展。下面列举几个有代表性公司的PLC网络结构。
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3150-mcm 3150-mcm
HMD01_1N-W0020-A-07-NNNN
HMD01.1N-W0036-NNNN
HMD01_1N-W0036-A-07-NNNN
力士乐驱动\板卡HNL系列型号:
编号 Cat.description Part NO.
HNL01.1E-0100-N0202-A-480-NNNN /R911306578 HNL01.1E-0200-N0125-A-480-NNNN/ R911306579 HNL01.1E-0400-N0051-A-480-NNNN /R911306580 HNL01.1E-0600-N0032-A-500-NNNN/ R911306773 HNL01.1E-1000-N0020-A-500-NNNN /R911306777
HNL01.1E-0240-N0106-A-500-NNNN /R911307203 HNL01.1E-0362-N0080-A-500-NNNN /R911307204 HNL01.1E-0571-N0050-A-500-NNNN /R911307205
HNL01.1E-1000-N0012-A-500-NNNN/R911306775
HNL01.1 E-1000-N0012-A-500-NNNN/R911306775
HNL01.1 E-1000-N0020-A-500-NNNN/R911306777
HNL01.1 E-0600-N0032-A-500-NNNN/R911306773
HNL01.1E-0571-N0050-A-500-NN NN R911307205
HNL01.1E-0100-N0202-A-480-NNNN R911306578 HNL01.1E-3400-S0202-A-480-NNNN R911306590
HNL01.1E-0200-N0125-A-480-NNNN R911306579
HNL01.1E-2800-S0125-A-480-NNNN R911306589
HNL01.1E-0400-N0051-A-480-NNNN R911306580 HNL01.1E-5700-S0051-A-480-NNNN R911306591
HNL01.1 E-0362-N0080-A-500-NN NN R911307204
HNL01.1R-0540-C0094-A-480-NNNN R911306582 HNL01.1R-0540-C0094-A-480-NNNA R911307981 HNL01.1R-3000-S0094-A-480-NNNN R911306602 HNL01.1R-0590-C0065-A-480-NNNN R911306583 HNL01.1R-6300-S0065-A-480-NNNN R911306605
HNL01.1R-0980-C0026-A-480-NNNN R911306584 HNL01.1R-4200-S0026-A-480-NNNN R911306603
HNL01.1R-0540-C0094-A-480-NNNN /R911306582 HNL01.1R-0590-C0065-A-480-NNNN/R911306583
HLR01.1N-0300-N17R5-A-007-NNNN R911305931 HLR01.1N-01K6-N18R0-A-007-NNNN R911306869 HLR01.1N-03K4-N19R0-A-007-NNNN R911306748 HLR01.1N-04K2-N18R0-A-007-NNNN R911306878 HLR01.1N-05K9-N18R0-A-007-NNNN R911306879 HLR01.1N-09K0-N18R0-A-007-NNNN R911305863 HLR01.1 N-0470-N 11R7-A-007-NNNN R911305932 HLR01.1 N-02K0-N 15R0-A-007-NNNN R911306870 HLR01.1 N-05K0-N 15R0-A-007-NNNN R911306881 HLR01.1 N-06K3-N 14R0-A-007-NNNN R911306871 HLR01.1 N-09K1-N13R0-A-007-NNNN R911306880 HLR01.1 N-13K3-N 13R0-A-007-NNNN R911305864
HNL01.1E-0240-N0106-A-500-NN NN R911307203 HLR01.1N-0780-N07R0-A-007-NNNN R911305933 HLR01.1N-04K5-N07R4-A-007-NNNN R911306921 HLR01.1N-08K3-N08R0-A-007-NNNN R911306872 HLR01.1N-10K3-N07R3-A-007-NNNN R911306873 HLR01.1N-15K0-N08R1 -A-007-NNNN R911306875 HLR01.1N-22K0-N07R2-A-007-NNNN R911305865
力士乐驱动\板卡HNF系列型号:
编号 Cat.description Part NO.
HNF01.1A-F240-R0094-A-480-NNNN/ R911306295
HNF01.1A-M900-E0125-A-480-NNNN /R911306436 HNF01.1A-F240-E0125-A-480-NNNN/ R911306437 HNF01.1A-M900-E0051-A-480-NNNN/ R911306532 HNF01.1A-F240-R0065-A-480-NNNN/ R911306533 HNF01.1A-M900-E0202-A-480-NNNN /R911306536
HNF01.1A-F240-E0051-A-480-NNNN/ R911307937 HNF01.1A-F240-E0202-A-480-NNNN /R911307938
HNF01.1A-F240-R0094-A-480-NNNN R911306295 HNF01.1A-M900-R0094-A-480-NNNN R911306296 HNF01.1A-F240-R0065-A-480-NNNN R911306533 HNF01.1A-M900-R0065-A-480-NNNN R911306534 HNF01.1A-F240-E0202-A-480-NNNN R911307938 HNF01.1A-M900-E0202-A-480-NNNN R911306536 HNF01.1A-F240-E0125-A-480-NNNN R911306437 HNF01.1A-M900-E0125-A-480-NNNN R911306436 HNF01.1A-F240-R0026-A-480-NNNN R911306539 HNF01.1A-M900-R0026-A-480-NNNN R911306535 HNF01.1A-F240-E0051-A-480-NNNN R911307937
HNF01.1A-M900-E0051-A-480-NNNN R911306532