本案例是應(yīng)用倍訊科技MODBUS轉(zhuǎn)PROFINET網(wǎng)關(guān)連接森蘭變頻器與PLC的配置案例,用到設(shè)備為西門子S7-1200PLC,MODBUS RTU轉(zhuǎn)PROFINET網(wǎng)關(guān),希望森蘭變頻器。
1、首先創(chuàng)建新項目文件;
2、導(dǎo)入GSD 文件。將MODBUS轉(zhuǎn)PROFINET網(wǎng)關(guān)的GSD文件拷貝放到任意位置。打開博圖,建立新項目。進(jìn)入設(shè)備和網(wǎng)絡(luò),在選項中選擇管理通 用站描述文件,安裝 GSD 文件;
3、搜索GSD文件存放文件夾,搜索到GSD后選擇安裝,等待安裝成功;
4、安裝GSD成功后,打開硬件目錄將安裝好的GSD文件添加到組態(tài)中,MODBUS轉(zhuǎn)PROFINET網(wǎng)關(guān)和PLC還沒有進(jìn)行連接處在未分配狀態(tài);
5、點擊未分配與PLC進(jìn)行連接后就可以對MODBUS轉(zhuǎn)PROFINET網(wǎng)關(guān)的屬性進(jìn)行參數(shù)的設(shè)定;
6、MODBUS轉(zhuǎn)PROFINET網(wǎng)關(guān)屬性,修改MODBUS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);
7,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;
8,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;
9,打開配置軟件Gateway Configuration Studio;
10, 點擊新建,選擇設(shè)備為PN2MRM3;
11, 配置軟件中的IP地址與博圖MODBUS轉(zhuǎn)PROFINET網(wǎng)關(guān)組態(tài)中的IP地址必須要一致;
12,配置軟件中的PROFINET與博圖MODBUS轉(zhuǎn)PROFINET網(wǎng)關(guān)組態(tài)必須要一致;
13,根據(jù)設(shè)備說明對波特率、字寬(數(shù)據(jù)位選擇)、奇偶校驗等參數(shù)進(jìn)行配置。從圖上可知變頻器從站協(xié)議為Modbus-Rtu通信數(shù)據(jù)格式8個數(shù)據(jù)位,一個停止位無校驗,同理網(wǎng)關(guān)做相同配置;
14,以下圖設(shè)備說明為例,設(shè)備說明中地址1,功能碼3/10,需要寫入地址是3200H,3201H則對寫入主控制字的配置如下;
15,配置完成所有需要的參數(shù)后進(jìn)行下載,點擊工具在點擊通訊設(shè)置;
16,進(jìn)制地址換算為10進(jìn)制起始地址寫12800寄存器數(shù)量兩個代表可輸入主控制字啟停和給定頻率兩個參數(shù),讀取使用03功能碼,如像讀取如從主狀態(tài)字到FF-17過程字選擇輸出的數(shù)值,那么則要填寫從12816開始的10個寄存器數(shù)據(jù)。點擊Search進(jìn)入到下一界面后再點Search雙擊下方紅框內(nèi)IP及設(shè)備。
審核編輯 黃宇
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