PPI是西門子公司專為S7-200系列PLC開發(fā)的通訊協(xié)議,主要用RS485串口
MPI是多點接口(Multi Point Interface)的簡稱,是西門子公司開發(fā)的用于PLC之間通訊的保密的協(xié)議。主要使用在西門子S7-200/300/400等型號的PLC上。
ModbusTCP協(xié)議是開放的,很多人愿意使用ModbusTCP的原因也在于其開放性和易用性,特別是工廠車間信息化設備聯(lián)網(wǎng),會有很多品牌的PLC控制系統(tǒng),這個時候如果統(tǒng)一成ModbusTCP通訊,那么上位軟件編寫會很方便。要實現(xiàn)modbus訪問PPO/MPI設備,需要用的物通博聯(lián)協(xié)議轉(zhuǎn)換網(wǎng)關(guān)
![poYBAGMAcW2AR4KEAAWlCIwXaOg410.png](https://file.elecfans.com/web2/M00/63/20/poYBAGMAcW2AR4KEAAWlCIwXaOg410.png)
通過物通博聯(lián)WG系列工業(yè)智能網(wǎng)關(guān)Modbus TCP轉(zhuǎn)發(fā)功能,能夠?qū)崿F(xiàn)將不同協(xié)議(modbus、opc、ppi、mpi……)的工業(yè)現(xiàn)場設備數(shù)據(jù)同時通過MQTT協(xié)議上傳到云平臺,和轉(zhuǎn)換為modbus tcp協(xié)議上傳到本地的工業(yè)軟件(如組態(tài)軟件)或者PLC控制器。
![poYBAGLqQmGAVFD1AAYzmsnJg1A812.png](https://file.elecfans.com/web2/M00/59/FD/poYBAGLqQmGAVFD1AAYzmsnJg1A812.png)
物通博聯(lián)自主研發(fā)生產(chǎn)的WG系列工業(yè)智能網(wǎng)關(guān),支持5G、4G、WIFI、有線以太網(wǎng)等接入方式接口豐富,適配各種場景,具有強大的數(shù)據(jù)采集能力,支持眾多協(xié)議、快速采集算法,同時采集多種設備;數(shù)據(jù)采集后還會進行數(shù)據(jù)過濾、報警、跳變、公式、本地編程等邊緣計算,將數(shù)據(jù)標準化后支持MQTT協(xié)議接入各種平臺和工業(yè)軟件,內(nèi)嵌看門狗、看護程序、工業(yè)級設計,實現(xiàn)無人值守,安全可靠。
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