NI SCXI-1127通道繼電器多路復用器
新的計算值被寫(xiě)回到CI854/CI854A的設置選項卡中，并存儲在項目中，如圖17所示。下圖顯示了自動(dòng)PROFIBUS主參數計算的不同步驟。如果從設備不支持所選波特率，系統自動(dòng)選擇所有從屬設備支持的下一個(gè)較低波特率，并將該波特率下載到控制器中。除了將計算的PROFIBUS參數寫(xiě)回設置選項卡之外，計算結果和一些額外信息將發(fā)送到名為PROFIBUS_DPV1_calculation.txt的文本文件中。該日志文件位于日志文件目錄中，文本文件包括當前和以前的計算，最大大小為1兆字節。當前計算結果位于文件末尾。
The new calculated values are written back into
the settings tab for CI854/CI854A and stored in the project as shown in Figure 17.
The following figure shows the different steps for the automatic PROFIBUS master
parameter calculation.
If a slave does not support the selected baudrate, the system automatically selects
the next lower baudrate supported by all slaves and downloads this baudrate into
the controller In addition to the write back of the calculated PROFIBUS parameters into the
settings tab the calculation result with some extra information will be sent to a text
file named Profibus_DPV1_Calculation.txt. This logfile is placed in the logfile
directory, called LogFiles, of Control Builder M. The text file includes the current and previous calculations up to a size of 1 Mbyte. The current calculation is placed
at the end of the file.
