Profinet實(shí)時(shí)

1、實(shí)時(shí)Profinet A&D CS2 FA2 2 Service & Support2PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)PN IO with RTPN IO with RTPN CBA with RTPN CBA with RTPN IO with IRTPN IO with IRT需求和發(fā)展趨勢(shì)需求和發(fā)展趨勢(shì)PROFINETPROFINET自動(dòng)化發(fā)展趨勢(shì)n集中控制-分布式控制 n在所有的自動(dòng)化層上使用以太網(wǎng)n在自動(dòng)化系統(tǒng)中開放式的IT 標(biāo)準(zhǔn)得到更多的應(yīng)用 nIT和自動(dòng)化系統(tǒng)一起發(fā)展需求需求& & 發(fā)展趨勢(shì)發(fā)展趨勢(shì)3 3 Service & S

2、upport3PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)PN IO with RTPN IO with RTPN CBA with RTPN CBA with RTPN IO with IRTPN IO with IRT需求和發(fā)展趨勢(shì)需求和發(fā)展趨勢(shì)PROFINETPROFINET形成統(tǒng)一網(wǎng)絡(luò)的結(jié)構(gòu)n減少接口n設(shè)備的安裝范圍更廣闊n至上而下從企業(yè)控制層直到現(xiàn)場(chǎng)層的連續(xù)在自動(dòng)化系統(tǒng)中使用IT-技術(shù)的優(yōu)勢(shì)n遠(yuǎn)程訪問(wèn)nWeb 服務(wù)n軟件更新相對(duì)當(dāng)前系統(tǒng)的高級(jí)之處n更高的性能n沒(méi)有數(shù)量的限制n操作簡(jiǎn)單為什么在工業(yè)環(huán)境中使用以太網(wǎng)?需求需求& & 發(fā)展趨勢(shì)發(fā)展趨勢(shì)4 4 Service

3、& Support4PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)PN IO with RTPN IO with RTPN CBA with RTPN CBA with RTPN IO with IRTPN IO with IRT需求和發(fā)展趨勢(shì)需求和發(fā)展趨勢(shì)PROFINETPROFINETIndustrial AutomationIndustrial Automation工業(yè)自動(dòng)化對(duì)于以太網(wǎng)的特殊要求Industrial Industrial approved approved InstallationInstallationPlant widePlant wideEngineering

4、EngineeringHigh High AvailabilityAvailabilityQuickQuickReaction TimesReaction TimesEfficientEfficientNetwork and Network and DeviceDeviceDiagnosticsDiagnosticsConfigurableConfigurableAccess ProtectionAccess ProtectionSafety approvedSafety approvedApplicationsApplicationsIntegrationIntegrationof exis

5、tingof existingPlantsPlants需求需求& & 發(fā)展趨勢(shì)發(fā)展趨勢(shì)5 5 Service & Support5PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)PN IO with RTPN IO with RTPN CBA with RTPN CBA with RTPN IO with IRTPN IO with IRT需求和發(fā)展趨勢(shì)需求和發(fā)展趨勢(shì)PROFINETPROFINETPROFINET 基于工業(yè)以太網(wǎng)標(biāo)準(zhǔn)全面地解決方案全面地解決方案! !PROFINETIT-StandardsIT-Standards& Security& Se

6、curityProcessProcessDistributedDistributedIntelligenceIntelligenceDistributedDistributedField DevicesField DevicesMotionMotionControlControlReal-timeReal-timeCommunicationCommunicationNetwork Network InstallationInstallationSafetySafetyAnswer: PROFINETAnswer: PROFINET6 6 Service & Support6PROFIN

7、ET PROFINET 實(shí)時(shí)實(shí)時(shí)PN IO with RTPN IO with RTPN CBA with RTPN CBA with RTPN IO with IRTPN IO with IRT需求和發(fā)展趨勢(shì)需求和發(fā)展趨勢(shì)PROFINETPROFINETPROFINET 是由PROFIBUS & PROFINET International (PI)PROFIBUS & PROFINET International (PI)推出推出的的開放式工業(yè)以太網(wǎng)標(biāo)準(zhǔn)PROFINET 是基于工業(yè)以太網(wǎng)PROFINET 遵循 TCP/IP 和 IT標(biāo)準(zhǔn)PROFINET 是實(shí)時(shí)以太網(wǎng)PROF

8、INET 可以無(wú)縫集成現(xiàn)場(chǎng)總線系統(tǒng) PROFINET 解決方案!PROFINETPROFINET7 7 Service & Support7PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)PN IO with RTPN IO with RTPN CBA with RTPN CBA with RTPN IO with IRTPN IO with IRT需求和發(fā)展趨勢(shì)需求和發(fā)展趨勢(shì)PROFINETPROFINETPROFINET from PROFIBUS International此體系的開發(fā)是依靠 n12 工作組n大約 140 員工n來(lái)自 60 公司PROFINET PROFINET 來(lái)自

9、世界上最大的現(xiàn)場(chǎng)總線組織來(lái)自世界上最大的現(xiàn)場(chǎng)總線組織PROFIBUS & PROFINET International (PI)PROFIBUS & PROFINET International (PI)在世界上擁有超過(guò)在世界上擁有超過(guò) 1,400 1,400 成員成員 25 Regional 25 Regional AssociationsAssociations(RPA)(RPA)35 PI Competence 35 PI Competence Center (PICC)Center (PICC)8 PI Test 8 PI Test Laboratories (PITL

10、)Laboratories (PITL)PROFINETPROFINET8 8 Service & Support8PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)PN IO with RTPN IO with RTPN CBA with RTPN CBA with RTPN IO with IRTPN IO with IRT需求和發(fā)展趨勢(shì)需求和發(fā)展趨勢(shì)PROFINETPROFINET模塊化設(shè)計(jì)可以更好的對(duì)工程進(jìn)行保存和移植可以保護(hù)投資方利益，可以集成現(xiàn)有的 PROFIBUS 設(shè)備等由于基于以太網(wǎng)和IT標(biāo)準(zhǔn)，因而有很強(qiáng)的適應(yīng)性 運(yùn)動(dòng)控制的性能提高了40倍PROFINET the main

11、topicsPROFINETPROFINET9 9 Service & Support9PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)PN IO with RTPN IO with RTPN CBA with RTPN CBA with RTPN IO with IRTPN IO with IRT需求和發(fā)展趨勢(shì)需求和發(fā)展趨勢(shì)PROFINETPROFINETPROFINET 用一條電纜執(zhí)行所有任務(wù)IndustrialIndustrialEthernetEthernetWeb/TCP/IPWeb/TCP/IPDiagnosticsDiagnosticsWLANWLANHMIHMIPLCPLC

12、PG/PCPG/PCField deviceField deviceField deviceField device一般情況下的自動(dòng)化系統(tǒng)拓?fù)湟话闱闆r下的自動(dòng)化系統(tǒng)拓?fù)?PLCPLCPROFINETPROFINETField deviceField device1010 Service & Support10PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)PN IO with RTPN IO with RTPN CBA with RTPN CBA with RTPN IO with IRTPN IO with IRT需求和發(fā)展趨勢(shì)需求和發(fā)展趨勢(shì)PROFINETPROFINETField d

13、eviceField deviceIndustrialIndustrialEthernetEthernetWeb/TCP/IPWeb/TCP/IPDiagnosticsDiagnosticsIWLANIWLAN PROFINETPROFINET體系下的自動(dòng)化系統(tǒng)拓?fù)潴w系下的自動(dòng)化系統(tǒng)拓?fù)銱MIHMIPG/PCPG/PCPLCPLCField deviceField deviceDriveDriveMotionMotionControlControlAccess-Access-PointPoint PROFINET 用一條電纜執(zhí)行所有任務(wù)PROFINETPROFINET1111 Service

14、& Support11PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)PN IO with RTPN IO with RTPN CBA with RTPN CBA with RTPN IO with IRTPN IO with IRT需求和發(fā)展趨勢(shì)需求和發(fā)展趨勢(shì)PROFINETPROFINET對(duì)用戶產(chǎn)生的利益和附加值連接任意一個(gè)自動(dòng)化設(shè)備到任意一點(diǎn)上所有自動(dòng)化應(yīng)用程序的運(yùn)行僅僅通過(guò)一條電纜，如：Real-time 和 TCP/IP標(biāo)準(zhǔn)自動(dòng)化系統(tǒng)和故障安全系統(tǒng)也僅通過(guò)一條電纜;如果必要的話, 通過(guò)工業(yè) WLAN也可以把無(wú)線接入自動(dòng)化系統(tǒng)中對(duì)于工程實(shí)施，設(shè)備安裝和維護(hù)來(lái)說(shuō)具有更好的靈活性和更低

15、對(duì)于工程實(shí)施，設(shè)備安裝和維護(hù)來(lái)說(shuō)具有更好的靈活性和更低的成本的成本PROFINET 用一條電纜執(zhí)行所有任務(wù)!PROFINETPROFINET1212 Service & Support12PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)PN IO with RTPN IO with RTPN CBA with RTPN CBA with RTPN IO with IRTPN IO with IRT需求和發(fā)展趨勢(shì)需求和發(fā)展趨勢(shì)PROFINETPROFINET術(shù)語(yǔ)實(shí)時(shí)性 (Real time) 系統(tǒng)在預(yù)定的時(shí)間內(nèi)處理外部事件確定性 (Determinism) 系統(tǒng)的動(dòng)作可預(yù)測(cè) (確定的)反應(yīng)時(shí)

16、間 (Latency) 事件發(fā)生到對(duì)該事件做出響應(yīng)的時(shí)間間隔抖動(dòng) (Jitter) 反應(yīng)時(shí)間的波動(dòng)同步 (Synchronism) 事件的同時(shí)發(fā)生等時(shí)性 (Isochronisms) 確保傳輸帶寬PROFINETPROFINET1313 Service & Support13PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)PN IO with RTPN IO with RTPN CBA with RTPN CBA with RTPN IO with IRTPN IO with IRT需求和發(fā)展趨勢(shì)需求和發(fā)展趨勢(shì)PROFINETPROFINET訪問(wèn)方法訪問(wèn)方法 Ethernet 采用隨機(jī)爭(zhēng)用

17、型介質(zhì)訪問(wèn)方法(CSMA/CD) 存在的問(wèn)題：如果網(wǎng)絡(luò)負(fù)載過(guò)高，無(wú)法預(yù)測(cè)網(wǎng)絡(luò)延遲時(shí)間 TransmittTransmittererSwitchSwitchSwitchSwitchSwitchSwitchSwitchSwitchSwitchSwitchSwitchSwitchReceiverReceiverA AB BC CD DE EF FFurther stationsFurther stations 只要有通信需求，各以太網(wǎng)節(jié)點(diǎn) (A-F) 均可向網(wǎng)絡(luò)發(fā)送數(shù)據(jù) 報(bào)文可能在主干網(wǎng)中被緩沖 PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)使用使用CSMA/CDCSMA/CD進(jìn)行沖突識(shí)別進(jìn)行沖突識(shí)別

18、1414 Service & Support14PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)PN IO with RTPN IO with RTPN CBA with RTPN CBA with RTPN IO with IRTPN IO with IRT需求和發(fā)展趨勢(shì)需求和發(fā)展趨勢(shì)PROFINETPROFINET交換技術(shù) 以太網(wǎng)幀的優(yōu)先級(jí)劃分在 IEEE 802.1q 標(biāo)準(zhǔn)中定義 四個(gè)額外的數(shù)據(jù)字節(jié)用于控制不同優(yōu)先級(jí)數(shù)據(jù)幀的傳輸 數(shù)據(jù)幀 1 正在發(fā)送中 ，無(wú)法中斷正在進(jìn)行的傳輸任務(wù) 數(shù)據(jù)幀 2 的優(yōu)先級(jí)低于數(shù)據(jù)幀 3 ，因而被暫時(shí)擱置Port 1Port 1Queue Queue f

19、or port 1for port 1Port 2Port 2Port 3Port 31 13 32 21 13 32 21 12 23 3PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)1515 Service & Support15PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)PN IO with RTPN IO with RTPN CBA with RTPN CBA with RTPN IO with IRTPN IO with IRT需求和發(fā)展趨勢(shì)需求和發(fā)展趨勢(shì)PROFINETPROFINET改善的通信堆棧性能數(shù)據(jù)準(zhǔn)備和處理所需的時(shí)間與通信無(wú)關(guān)優(yōu)化通信堆棧循環(huán)時(shí)間線路傳輸時(shí)間可忽略

20、(100 Mb/s) 提供提供 數(shù)據(jù)數(shù)據(jù)通信堆棧通信堆棧提供者提供者處理處理 數(shù)據(jù)數(shù)據(jù)通信堆棧通信堆棧消費(fèi)者消費(fèi)者傳輸傳輸 T1 T2 T3PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)1616 Service & Support16PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)PN IO with RTPN IO with RTPN CBA with RTPN CBA with RTPN IO with IRTPN IO with IRT需求和發(fā)展趨勢(shì)需求和發(fā)展趨勢(shì)PROFINETPROFINET現(xiàn)場(chǎng)通信中的 QoS 要求QoS QoS 級(jí)別級(jí)別1 12 23 34 4應(yīng)用類型應(yīng)用類型控

21、制器之間控制器之間分布式分布式 IO IO 設(shè)備設(shè)備運(yùn)動(dòng)控制運(yùn)動(dòng)控制組態(tài)編程組態(tài)編程/ /參數(shù)參數(shù)反應(yīng)時(shí)間反應(yīng)時(shí)間100ms100ms10ms10ms1ms1ms盡力盡力抖動(dòng)抖動(dòng)/ / /1us1usPROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)1717 Service & Support17PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)PN IO with RTPN IO with RTPN CBA with RTPN CBA with RTPN IO with IRTPN IO with IRT需求和發(fā)展趨勢(shì)需求和發(fā)展趨勢(shì)PROFINETPROFINET如何獲得以太網(wǎng) QoS使用專用交

22、換技術(shù)和全雙工 FCX 通道 遵循 IEEE802.1D/Q 的優(yōu)先級(jí)別，采用服務(wù)分類 CoS 機(jī)制 時(shí)間要求嚴(yán)格的應(yīng)用場(chǎng)合，如：RT “盡力“ 應(yīng)用場(chǎng)合,如：VLAN 優(yōu)化設(shè)備處理時(shí)間PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)1818 Service & Support18PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)PN IO with RTPN IO with RTPN CBA with RTPN CBA with RTPN IO with IRTPN IO with IRT需求和發(fā)展趨勢(shì)需求和發(fā)展趨勢(shì)PROFINETPROFINETReal-time 通信DezentraleF

23、eldgerteDezentraleDezentraleFeldgerteFeldgertePROFINETIT StandardsIT Standards& Security& SecurityProcessProcessDistri-Distri-butedbutedAutomationAutomationDistributedDistributedfield devicesfield devicesMotionMotionControlControlReal-timecommunicationNetworkNetworkInstallationInstallationSa

24、fetySafetyPROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)1919 Service & Support19PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)PN IO with RTPN IO with RTPN CBA with RTPN CBA with RTPN IO with IRTPN IO with IRT需求和發(fā)展趨勢(shì)需求和發(fā)展趨勢(shì)PROFINETPROFINETPROFINET 實(shí)時(shí)通信PROFINET 根據(jù)性能不同可劃分為兩種實(shí)時(shí)類型 (Ethertype 0 x8892).實(shí)時(shí) (RT): 使用標(biāo)準(zhǔn)網(wǎng)絡(luò)器件 工作特性與目前的現(xiàn)場(chǎng)總線類似 (如 PROFIBUS) 典

25、型應(yīng)用場(chǎng)合：工廠自動(dòng)化 基于地址的通信等時(shí)實(shí)時(shí) (IRT): 時(shí)鐘同步的通信 借助硬件 Switch-ASIC 芯片 典型應(yīng)用場(chǎng)合：運(yùn)動(dòng)控制中的驅(qū)動(dòng)控制 基于時(shí)間的通信PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)2020 Service & Support20PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)PN IO with RTPN IO with RTPN CBA with RTPN CBA with RTPN IO with IRTPN IO with IRT需求和發(fā)展趨勢(shì)需求和發(fā)展趨勢(shì)PROFINETPROFINETRT 通信要求更新時(shí)間工廠自動(dòng)化： 5-10 ms運(yùn)動(dòng)控制：1

26、ms，抖動(dòng) 1s (時(shí)間同步)處理器負(fù)責(zé)應(yīng)用程序的處理，實(shí)時(shí)通信不應(yīng)過(guò)分占據(jù)處理器資源 處理器的主要任務(wù)是處理應(yīng)用程序?qū)崟r(shí)通信必須可應(yīng)用于現(xiàn)有的以太網(wǎng)絡(luò)結(jié)構(gòu)中對(duì)現(xiàn)有通信不造成影響使用標(biāo)準(zhǔn)網(wǎng)絡(luò)器件 (如交換機(jī)) 裝置采用標(biāo)準(zhǔn)以太網(wǎng)控制器PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)2121 Service & Support21PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)PN IO with RTPN IO with RTPN CBA with RTPN CBA with RTPN IO with IRTPN IO with IRT需求和發(fā)展趨勢(shì)需求和發(fā)展趨勢(shì)PROFINETPROFINE

27、T實(shí)時(shí)通信： RTRTRTRT 具備類似于 PROFIBUS 的實(shí)時(shí)特性 總線循環(huán)時(shí)間實(shí)際可達(dá) 5 至 10 msPROFINET 與 TCP/IP 標(biāo)準(zhǔn)完全兼容，不受任何限制IT servicesIT services1 ms1 ms10 ms10 ms100 ms100 msInternetInternet工廠自動(dòng)化運(yùn)動(dòng)控制TCP/IPTCP/IPIRTIRTRTRTPROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)2222 Service & Support22PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)PN IO with RTPN IO with RTPN CBA with RTP

28、N CBA with RTPN IO with IRTPN IO with IRT需求和發(fā)展趨勢(shì)需求和發(fā)展趨勢(shì)PROFINETPROFINETRT 通信堆棧標(biāo)準(zhǔn)通道 TCP/IP 和 UDP/IP 組態(tài)和參數(shù)化 診斷數(shù)據(jù) 裝載 網(wǎng)絡(luò)連接 建立用戶數(shù)據(jù)通信通道實(shí)時(shí)通道 RT 高性能、循環(huán)用戶數(shù)據(jù)傳輸 事件出發(fā)的消息/報(bào)警實(shí)時(shí)實(shí)時(shí)RTRT實(shí)時(shí)實(shí)時(shí) 1 1EthernetEthernetTCP/UDPTCP/UDP PROFINET PROFINET 應(yīng)用程序應(yīng)用程序IT IT 應(yīng)用應(yīng)用e.g.e.g.n HTTP HTTPn SNMP SNMPn DHCP. DHCP.標(biāo)準(zhǔn)數(shù)據(jù)標(biāo)準(zhǔn)數(shù)據(jù)過(guò)程數(shù)據(jù)過(guò)程

29、數(shù)據(jù)IP IP 2 21 12 2PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)2323 Service & Support23PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)PN IO with RTPN IO with RTPN CBA with RTPN CBA with RTPN IO with IRTPN IO with IRT需求和發(fā)展趨勢(shì)需求和發(fā)展趨勢(shì)PROFINETPROFINETPROFINET報(bào)文的結(jié)構(gòu) 依照 IEEE 802.3標(biāo)準(zhǔn)的報(bào)文格式PROFINET real-time報(bào)文的Ether typen0 x0800: IP 報(bào)文n0 x8892: PROFINET

30、real-time 報(bào)文通過(guò) Frame-ID確定接收數(shù)據(jù)的分配n循環(huán)傳輸 (過(guò)程值)n事件觸發(fā)傳輸(報(bào)警和事件)狀態(tài)信息n設(shè)備和數(shù)據(jù)狀態(tài) (如：運(yùn)行，停止，錯(cuò)誤)Pre-ambel7 ByteSourceMAC6 ByteDest.MAC6 BytePriorityTagging*4 ByteFrameID2 ByteFCS4 ByteProzess dataup to 1440 ByteSync1 ByteEther-type2 ByteEthernet FrameStatusInformation4 BytePROFINET specificEthernet-Standard* * Ac

31、cording to 802.1 QAccording to 802.1 QPROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)2424 Service & Support24PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)PN IO with RTPN IO with RTPN CBA with RTPN CBA with RTPN IO with IRTPN IO with IRT需求和發(fā)展趨勢(shì)需求和發(fā)展趨勢(shì)PROFINETPROFINETSTEP 7 中組態(tài)PROFINET IO RTPN IO with RTPN IO with RT2525 Service & Support25

32、PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)PN IO with RTPN IO with RTPN CBA with RTPN CBA with RTPN IO with IRTPN IO with IRT需求和發(fā)展趨勢(shì)需求和發(fā)展趨勢(shì)PROFINETPROFINET更新時(shí)間組態(tài)中定義了時(shí)間 Phase=Send clock, 在此時(shí)間內(nèi)過(guò)程數(shù)據(jù)將被發(fā)送 在同一個(gè)時(shí)間片內(nèi)，實(shí)時(shí)數(shù)據(jù)和TCP/IP數(shù)據(jù)可以被一起發(fā)送 所有設(shè)備數(shù)據(jù)更新數(shù)據(jù)的時(shí)間和就是update time1 12 23 31 13 3TCP/IPTCP/IPTCP/IPTCP/IPTCP/IPTCP/IP1 12 23 3TCP/

33、IPTCP/IP.Update time e.g.2msSend clock e.g. 1ms1 1Phase2Phase3Phase1PN IO with RTPN IO with RT2626 Service & Support26PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)PN IO with RTPN IO with RTPN CBA with RTPN CBA with RTPN IO with IRTPN IO with IRT需求和發(fā)展趨勢(shì)需求和發(fā)展趨勢(shì)PROFINETPROFINETiMap 組態(tài) PROFINET CBA RTPN CBA with RTPN CBA

34、with RT2727 Service & Support27PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)PN IO with RTPN IO with RTPN CBA with RTPN CBA with RTPN IO with IRTPN IO with IRT需求和發(fā)展趨勢(shì)需求和發(fā)展趨勢(shì)PROFINETPROFINETIT servicesIT services1 ms1 ms10 ms10 ms100 ms100 msInternetInternet工廠自動(dòng)化運(yùn)動(dòng)控制TCP/IPTCP/IPIRTIRTRTRT等時(shí)實(shí)時(shí)通信IRTIRT運(yùn)動(dòng)控制要求 總線周期小于 1 ms 時(shí)

35、鐘同步及確定性 抖動(dòng)小于 1s Time scheduled transmissionPN IO with IRTPN IO with IRT2828 Service & Support28PROFINET PROFINET 實(shí)時(shí)實(shí)時(shí)PN IO with RTPN IO with RTPN CBA with RTPN CBA with RTPN IO with IRTPN IO with IRT需求和發(fā)展趨勢(shì)需求和發(fā)展趨勢(shì)PROFINETPROFINETIRT 通信堆棧標(biāo)準(zhǔn)通道 TCP/IP and UDP/IP 組態(tài)和參數(shù)化 診斷數(shù)據(jù) 裝載 網(wǎng)絡(luò)連接 建立用戶數(shù)據(jù)通信通道實(shí)時(shí)通道 IRT 同步用戶數(shù)據(jù)傳輸 抖動(dòng) 1sec實(shí)時(shí)實(shí)時(shí)RTRTIRTIRT實(shí)時(shí)實(shí)時(shí) 1 1EthernetEthernetTCP/UDPTCP/UDP PROFINET PROFINET 應(yīng)用程序應(yīng)用程序IT IT 應(yīng)用應(yīng)用e.g.e.g.n HT