本案例是客戶現(xiàn)場(chǎng)有RS232協(xié)議的稱重儀表一臺(tái),需要接入到西門(mén)子Profinet網(wǎng)絡(luò)中,但是沒(méi)有辦法直接使用,需要通過(guò)RS232轉(zhuǎn)Profinet網(wǎng)關(guān)實(shí)現(xiàn),所需設(shè)備:西門(mén)子1200PLC一臺(tái)、RS232轉(zhuǎn)Profinet自由協(xié)議網(wǎng)關(guān)一臺(tái)、防水稱重儀表一臺(tái);
1、使用方法,首先創(chuàng)建新項(xiàng)目文件;
2、安裝GSD成功后,打開(kāi)硬件目錄將安裝好的GSD文件添加到組態(tài)中,RS232轉(zhuǎn)Profinet網(wǎng)關(guān)和PLC還沒(méi)有進(jìn)行連接處在未分配狀態(tài);
3、點(diǎn)擊未分配與PLC進(jìn)行連接后就可以對(duì)RS232轉(zhuǎn)Profinet網(wǎng)關(guān)的屬性進(jìn)行參數(shù)的設(shè)定;
4、RS232轉(zhuǎn)Profinet網(wǎng)關(guān)屬性,修改RS232轉(zhuǎn)Profinet網(wǎng)關(guān)的IP地址和PROFINET設(shè)備名稱(設(shè)備名稱中不要帶*./這類符號(hào)),需要注意的是設(shè)置PROFINET設(shè)備名稱時(shí),不要勾選自動(dòng)生成PROFINET設(shè)備名稱;
5、添加需要的輸入(inptu)、輸出(output)字節(jié)數(shù)。添加字節(jié)數(shù)根據(jù)需求進(jìn)行添加;
6、根據(jù)下圖所示,設(shè)置好參數(shù)后就可以下載并裝載到PLC;
7、打開(kāi)RS232轉(zhuǎn)Profinet網(wǎng)關(guān)配置軟件;
8、RS232轉(zhuǎn)PROFINET網(wǎng)關(guān)配置軟件中,要設(shè)置設(shè)備名和IP地址并且與博圖的RS232轉(zhuǎn)Profinet網(wǎng)關(guān)組態(tài)要完全一致。RS232轉(zhuǎn)PROFINET網(wǎng)關(guān)配置軟件中,本案例用生產(chǎn)者、消費(fèi)者模式進(jìn)行配置,需要注意的是:設(shè)備名不要添加/*-這類符號(hào);
9、RS232轉(zhuǎn)PROFINET網(wǎng)關(guān)配置軟件中,本案例用生產(chǎn)者、消費(fèi)者模式進(jìn)行配置;
10、RS232轉(zhuǎn)PROFINET網(wǎng)關(guān)配置軟件中,右鍵子網(wǎng)添加節(jié)點(diǎn),根據(jù)天平手冊(cè)設(shè)置波特率等其他相關(guān)參數(shù);
11、RS232轉(zhuǎn)PROFINET網(wǎng)關(guān)配置軟件中設(shè)置好所有參數(shù)后,進(jìn)行配置下載;
12、打開(kāi)防水稱重儀表手冊(cè),設(shè)置好設(shè)備的232總線參數(shù)(輸出方式,波特率數(shù)據(jù)位置等)注意:RS232轉(zhuǎn)PROFINET網(wǎng)關(guān)波特率最高為115200,如需更高波特率請(qǐng)聯(lián)系定制,設(shè)置RS232轉(zhuǎn)PROFINET網(wǎng)關(guān)的IP地址及設(shè)備名稱(與PLC保持一致);
13、設(shè)置RS232轉(zhuǎn)PROFINET網(wǎng)關(guān)232參數(shù);
14、RS232轉(zhuǎn)PROFINET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232接口模式,RS232轉(zhuǎn)PROFINET網(wǎng)關(guān)分為3個(gè)232口需要單獨(dú)設(shè)置可分別帶三臺(tái)232設(shè)備;
15、設(shè)置RS232轉(zhuǎn)PROFINET網(wǎng)關(guān)的232參數(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),以生產(chǎn)消費(fèi)者模式為例,添加生產(chǎn)者或者消費(fèi)者;
16、添加消費(fèi)者接收設(shè)備數(shù)據(jù);
17、根據(jù)設(shè)備手冊(cè)得知,儀表有三種發(fā)送模式;
18、由范例可知儀表發(fā)送字節(jié)數(shù)為12個(gè)字節(jié),所以數(shù)據(jù)長(zhǎng)度為12;
19、數(shù)據(jù)長(zhǎng)度設(shè)置為12如長(zhǎng)度不對(duì)那么從站數(shù)據(jù)長(zhǎng)度對(duì)應(yīng)不上則會(huì)被RS232轉(zhuǎn)PROFINET網(wǎng)關(guān)廢棄,不會(huì)發(fā)送到PLC。內(nèi)存映射起始地址對(duì)應(yīng)PLC的I地址IB68.配置完成后下載至RS232轉(zhuǎn)PROFINET網(wǎng)關(guān)并重啟后即可使用;
20、同理將發(fā)送設(shè)置成對(duì)應(yīng)的數(shù)據(jù)長(zhǎng)度,如果從站沒(méi)有回復(fù),可以把RS232轉(zhuǎn)PROFINET網(wǎng)關(guān)換成生產(chǎn)消發(fā)送即可。內(nèi)存映射起始地址1500對(duì)應(yīng)PLC的Q地址起始本例為QB64開(kāi)始;
21、配置好后將工程下載到RS232轉(zhuǎn)PROFINET網(wǎng)關(guān)即可。
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