西門(mén)子S7-1200/1500系列的PLC,需要連接帶EtherCAT的通訊功能的伺服驅(qū)動(dòng)器等設(shè)備。西門(mén)子的PLC采用PROFINET實(shí)時(shí)以太網(wǎng)通訊協(xié)議,要連接EtherCAT轉(zhuǎn)PROFINET的設(shè)備,就必須進(jìn)行通訊協(xié)議轉(zhuǎn)換。小疆智控GW-PN-ECATM系列的網(wǎng)關(guān)提供了,快速可行的解決方案。
方案介紹:
GW-PN-ECATM支持兩種實(shí)時(shí)以太網(wǎng)通訊協(xié)議之間的轉(zhuǎn)換,可以主通訊主站(加主站授權(quán)),也可以做通訊從站,兩個(gè)網(wǎng)絡(luò)獨(dú)立運(yùn)行,通過(guò)網(wǎng)關(guān)內(nèi)部進(jìn)行數(shù)據(jù)映射。每個(gè)以太網(wǎng)網(wǎng)絡(luò)都提供雙端口交換機(jī),方便連接和網(wǎng)絡(luò)擴(kuò)展。
1、首先添加網(wǎng)關(guān)GSD文件;
2、找到網(wǎng)關(guān)模塊進(jìn)行組態(tài);
3、設(shè)置網(wǎng)關(guān)的IP地址和設(shè)備名稱(chēng);
需要注意的是:不要把自動(dòng)生成PROFINET設(shè)備名稱(chēng)勾選
4、設(shè)置網(wǎng)關(guān)的輸入輸出字節(jié)數(shù)長(zhǎng)度;
5、下載組態(tài)到PLC;
6、打開(kāi)網(wǎng)關(guān)配置軟件進(jìn)行ECAT設(shè)置;
7、新建項(xiàng)目選擇PN2ECAT;
8、配置軟件的ip地址和設(shè)備名稱(chēng)要和博圖一致;
9、在設(shè)備列表中查找并選定所需設(shè)備;
10、對(duì)歐姆龍伺服驅(qū)動(dòng)器進(jìn)行參數(shù)配置, PDOs在下方參數(shù)欄中添加所用參數(shù)項(xiàng);
11、配置完成后運(yùn)行;
12、直接對(duì)對(duì)應(yīng)的IQ地址讀寫(xiě)即可;
結(jié)論
在本案例中,網(wǎng)關(guān)模塊GW-PN-ECATM作為歐姆龍伺服驅(qū)動(dòng)器設(shè)備與西門(mén)子PLC之間的橋梁,通過(guò)配置軟件進(jìn)行簡(jiǎn)單的數(shù)據(jù)映射,快速的實(shí)現(xiàn)了S7-1200 PLC通過(guò)PROFINET協(xié)議對(duì)伺服器進(jìn)行控制。
審核編輯黃昊宇
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