【文章內(nèi)容簡(jiǎn)介】 ? Pulse Multiplier? SCurve? PI? Integrator? SecondOrder Controller? Up/Down Accumulator選擇/限制指令? Select? Enhanced Select? Selected Summer? Selectable Negate? Multiplexer? H/L Limit? Rate Limiter3 ControlNet組態(tài)軟件（RSNetworx for CN） ControlNet基本知識(shí)作為國(guó)際標(biāo)準(zhǔn)IEC61158的高速工業(yè)現(xiàn)場(chǎng)總線ControlNet介紹： 最佳的開放性作為國(guó)際標(biāo)準(zhǔn)IEC61158的ControlNet工業(yè)現(xiàn)場(chǎng)總線由ROCKWELL AUTOMATION公司最早開發(fā)并公開，是工業(yè)自動(dòng)化領(lǐng)域的標(biāo)準(zhǔn)網(wǎng)絡(luò)。該總線現(xiàn)由獨(dú)立的 Control International組織負(fù)責(zé)管理。組織成員包括上百家知名的工業(yè)自動(dòng)化產(chǎn)品制造公司。 完全符合工業(yè)現(xiàn)場(chǎng)要求支持星型、樹型、總線型和環(huán)形等多種拓?fù)浞绞?。支持同軸電纜和光纖，通過中繼器，傳輸距離可達(dá)30公里。提供符合各類工業(yè)現(xiàn)場(chǎng)需要的同軸電纜及光纖，如鎧裝、地埋以及高柔性屏蔽電纜等。提供網(wǎng)絡(luò)冗余，網(wǎng)絡(luò)上每個(gè)站點(diǎn)可配置兩個(gè)網(wǎng)絡(luò)通道，冗余網(wǎng)絡(luò)之間無(wú)需任何編程，能夠根據(jù)網(wǎng)絡(luò)信號(hào)質(zhì)量自動(dòng)選擇通訊正常、良好的鏈路。提供本安型網(wǎng)絡(luò)延伸，可直接將符合本安要求的遠(yuǎn)程I/O延伸到可能的防爆區(qū)域。 先進(jìn)的網(wǎng)絡(luò)模式生產(chǎn)者/消費(fèi)者(Producer/Consumer)技術(shù) 快速響應(yīng)及確定性總線通訊速率為 5Mbps,并且通訊速率不會(huì)因網(wǎng)絡(luò)長(zhǎng)度的延伸而下降?？紤]到工業(yè)控制實(shí)時(shí)性要求的特點(diǎn)，借助生產(chǎn)者/消費(fèi)者(Producer/Consumer)技術(shù)。每一智能化輸入模板/設(shè)備作為現(xiàn)場(chǎng)信息的生產(chǎn)者Producer，在現(xiàn)場(chǎng)信號(hào)變化時(shí)，主動(dòng)向相關(guān)處理器傳送刷新；每一智能化輸出模板/設(shè)備可按用戶指定的任何刷新時(shí)間內(nèi)得到處理器當(dāng)前輸出指定。這徹底避免了傳統(tǒng)的以處理器/主站周期掃描或者廣播通知各I/O模塊/從站的方式帶來(lái)的弊病。 高 效 率 ControlNet使用的生產(chǎn)者/消費(fèi)者(Producer/Consumer)技術(shù)，與傳統(tǒng)的源/目的傳送模式有本質(zhì)不同。后者每發(fā)送一個(gè)信息就需要一個(gè)確定的源/目的地址數(shù)據(jù)包。而采用生產(chǎn)者/消費(fèi)者模式，網(wǎng)絡(luò)不需要單獨(dú)的源/目的地址，代之以數(shù)據(jù)標(biāo)識(shí)，不同的消費(fèi)者（信息接收者）可以根據(jù)數(shù)據(jù)標(biāo)識(shí)同時(shí)接收來(lái)自生產(chǎn)者（信息產(chǎn)生者）的信息，如果某些信息是它所不需要的，它可以忽略而只處理那些它所需要的信息。Scheduled, unscheduledConnectionNodes, distanceamp。 RepeatersNUT,RPI,API RSNetworx for CN操作步驟4 DeviceNet組態(tài)軟件（RSNetworx for DN） DeviceNet基本知識(shí)Multiple data exchange methods, including Polled, Cyclic, and Change of State (COS)If “Polled and COS” or “Polled and Cyclic” is used, the adapter receives the I/O from the polled messages. It transmits its Logic Status and Feedback in COS or Cyclic messages. Other data is transmitted in Polled messages.Polled: Polled Rate. Change of State: Heartbeat Rate. Cyclic: Send Rate.I/O Messaging:Explicit Messaging.Important: There must be a request message and a response message for all Explicit Messages, whether you are reading or writing dataDevicenet Object Model:Class (Object type)Instance of Class (Object ID)Service (Service Code, available services depend on the class and instance that you are using)Attribute of Class or Instance (Object Attribute).Explicit and UCMM (Unconnected Message Manager) Messages RSNetworx for DN操作步驟Cyclic and Polled data exchanges are configured in the scanner, COS data exchange must be configured in both the adapter and the scanner.Using I/O Messaging: Some types of I/O messaging allow a parameter value to be changed without using an Explicit Message. When you use them to change a value, the values are not written to the NonVolatile Storage (NVS). They should be used for frequently changed parameters in program.Using Explicit Messages.! Typically, Explicit Messages may write parameter data to NonVolatile Storage (NVS). Do not create a program that uses Explicit Messages to write parameter data to NVS. (When frequently written, the NVS will quickly exceed its life cycle and cause the drive to malfunction.) For MSG: PathThe path includes the following: