本案例是使用RS485轉(zhuǎn)Profinet網(wǎng)關(guān)鏈接IND320稱重顯示控制器的配置案例,所需設(shè)備:西門子1200PLC一臺、小疆智控RS485轉(zhuǎn)Profinet自由協(xié)議網(wǎng)關(guān)一臺、IND320稱重顯示控制器一臺。
1、首先需要打開西門子博圖配置軟件,添加PLC;
2.、導(dǎo)入RS485轉(zhuǎn)Profinet網(wǎng)關(guān)網(wǎng)關(guān)GSD文件;
3、設(shè)置RS485轉(zhuǎn)Profinet網(wǎng)關(guān)網(wǎng)關(guān)IP及設(shè)備名稱(本例名稱為GW1設(shè)備IP為192.168.20.5);
4、設(shè)置接收數(shù)據(jù)長度(本例為32字節(jié)),下載組態(tài)到PLC;
5、打開稱重控制器手冊設(shè)置為485接線模式;
6、設(shè)置好設(shè)備的485參數(shù)(輸出方式,波特率,數(shù)據(jù)位,地址等);
7、設(shè)置RS485轉(zhuǎn)Profinet網(wǎng)關(guān)的IP地址及設(shè)備名稱(與PLC保持一致);
8、RS485轉(zhuǎn)Profinet網(wǎng)關(guān)網(wǎng)關(guān)可設(shè)置為主從模式和生產(chǎn)/消費(fèi)者模式、主從模式需要從站應(yīng)答方可繼續(xù)發(fā)送指令、生產(chǎn)消費(fèi)者模式輸入與輸出互不干擾,物理標(biāo)準(zhǔn)改為485接口模式,RS485轉(zhuǎn)Profinet網(wǎng)關(guān)網(wǎng)關(guān)分為3個485口需要單獨(dú)設(shè)置;
9、設(shè)置RS485轉(zhuǎn)Profinet網(wǎng)關(guān)的485參數(shù)波特率數(shù)據(jù)位校驗(yàn)停止位等。(與連接設(shè)備保持一致),以主從模式為例,添加節(jié)點(diǎn)及交換命令;
10、添加發(fā)送數(shù)據(jù);
11、根據(jù)設(shè)備手冊得知,發(fā)送下圖命令即可讀取數(shù)據(jù),首先將R E A D cr lf等數(shù)據(jù)換算成10進(jìn)制或者16進(jìn)制通過plc發(fā)送RS485轉(zhuǎn)Profinet網(wǎng)關(guān)配上對應(yīng)長度(本例為6字節(jié));
12、也可添加常量,通過RS485轉(zhuǎn)Profinet網(wǎng)關(guān)而不是PLC自動發(fā)送;
13、將READ命令換成對應(yīng)的十進(jìn)制數(shù)據(jù)填寫入RS485轉(zhuǎn)Profinet網(wǎng)關(guān)網(wǎng)關(guān)自動發(fā)送;
14、同理將接收設(shè)置成對應(yīng)的數(shù)據(jù)長度;
15、配置好后將工程下載到RS485轉(zhuǎn)Profinet網(wǎng)關(guān)即可。
審核編輯 黃宇
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