開疆智能Modbus轉(zhuǎn)profinet網(wǎng)關(guān)KJ-PNG-201可以將Modbus協(xié)議轉(zhuǎn)化為profinet協(xié)議,以實(shí)現(xiàn)設(shè)備之間的數(shù)據(jù)交互。通過(guò)Modbus轉(zhuǎn)Profinet網(wǎng)關(guān)的應(yīng)用,PLC能夠準(zhǔn)確地掌握電力儀表的工作狀態(tài),實(shí)時(shí)獲取數(shù)據(jù)并進(jìn)行處理分析。用MODBUS轉(zhuǎn)PROFINET網(wǎng)關(guān)連接ISV2-RS 系列智能一體式低壓伺服與PLC的配置案例,用到設(shè)備為西門子S7-1200PLC, MODBUS轉(zhuǎn)PROFINET網(wǎng)關(guān), ISV2-RS 系列智能一體式低壓伺服。
先安裝開疆智能Modbus轉(zhuǎn)profinet網(wǎng)關(guān)模塊gsd文件。
查找gsd所在文件夾位置,選擇安裝即可。
安裝完畢后在如下地址找到MODBUS轉(zhuǎn)profinet網(wǎng)關(guān)模塊。
設(shè)置MODBUS轉(zhuǎn)profinet網(wǎng)關(guān)的IP地址和設(shè)備名稱。要和配置軟件保持一致。添加MODBUS轉(zhuǎn)profinet網(wǎng)關(guān)所需的輸入輸出字節(jié)長(zhǎng)度
打開軟件新建項(xiàng)目選擇PN2MRM3;
配置PN端的IP地址和網(wǎng)關(guān)名稱,需和博圖配置保持一致。
從站的通訊應(yīng)用格式和設(shè)備說(shuō)明書示例說(shuō)明;
由案例可知,讀取功能碼為03,從站功地址為1,讀取2個(gè)寄存器。
手冊(cè)中范例起始地址為0004H,需換算成10進(jìn)制為0004,連續(xù)讀取2個(gè)地址的數(shù)據(jù)。填入下圖之中。
內(nèi)存映射起始地址對(duì)應(yīng)博圖中的IQ地址,那么地址為4096話寄存器地址4096號(hào)的數(shù)據(jù)就會(huì)映射到IW地址第一位后面數(shù)據(jù)依此往后按順序排列。需要注意的是,配置完IP和設(shè)備名稱下載到網(wǎng)關(guān)后需要重新上電配置才會(huì)生效。
以上是通過(guò)Modbus轉(zhuǎn)Profinet網(wǎng)關(guān)實(shí)現(xiàn)了智能PLC與ISV2-RS一體式伺服之間的Modbus通訊,案例在現(xiàn)代工業(yè)領(lǐng)域中具有非常重要的應(yīng)用價(jià)值。其高效、靈活、可靠的特性將為生產(chǎn)和制造行業(yè)的發(fā)展帶來(lái)更多的機(jī)遇和貢獻(xiàn)
審核編輯 黃宇
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