首先,我們需要明確電磁流量計的通信協(xié)議是Modbus,而西門子1200PLC的通信協(xié)議是Profinet。這兩種協(xié)議在功能和特性上存在一定的差異,因此需要使用興達(dá)易控Modbus轉(zhuǎn)Profinet網(wǎng)關(guān)設(shè)備進(jìn)行轉(zhuǎn)換。興達(dá)易控的XD-MDPN100是Profinet轉(zhuǎn)ModbusTCP的網(wǎng)關(guān)設(shè)備,具有高度兼容的特點。
打開博圖,添加PLC,加載從興達(dá)易控免費提供的modbus到profinet的GSD文件。
安裝網(wǎng)關(guān)GSD文件后,點擊網(wǎng)絡(luò)視圖下的硬件目錄,添加XD-GATEWAY驅(qū)動程序并選擇此驅(qū)動程序
修改PLC的IP地址(IP地址應(yīng)與本機(jī)一致)
點擊Profinet從站點接口連接1200PLCProfinet總線,選擇并將modbus轉(zhuǎn)換為profinet網(wǎng)關(guān)驅(qū)動的Profinet。
修改網(wǎng)關(guān)的IP地址(IP地址應(yīng)與PLC保持相同的網(wǎng)段)
將modbus分配到profinet網(wǎng)關(guān)設(shè)備的名稱也可以默認(rèn)分配給系統(tǒng)。
打開流量計通信手冊
通訊參數(shù)為9600、N、8、1
在博圖中添加讀報指令,讀瞬時流量和瞬時流量速
起始地址1011H,轉(zhuǎn)換10進(jìn)制為4113,數(shù)據(jù)雙字,連續(xù)讀取4個寄存器
根據(jù)流量計的起始地址、數(shù)據(jù)類型和插槽中的數(shù)據(jù)長度,可以實現(xiàn)電磁流量計數(shù)據(jù)讀寫控制
通過興達(dá)易控modbus轉(zhuǎn)profinet網(wǎng)關(guān)(XD-MDPN100)無需編程即可連接1200plc,實現(xiàn)profinet與modbus的雙向協(xié)議轉(zhuǎn)換,同時兼容網(wǎng)口modbusTCP協(xié)議。
總結(jié):
興達(dá)易控Modbus轉(zhuǎn)Profinet網(wǎng)關(guān)是一款專為流量變送器設(shè)計的高兼容性轉(zhuǎn)換設(shè)備。它采用先進(jìn)的技術(shù),將Profinet協(xié)議快速轉(zhuǎn)換為ModbusTCP協(xié)議,為用戶提供方便快捷的使用體驗。
審核編輯 黃宇
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