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NI PXIE-8523代替机械部件简化了液压控制原理图
模拟量I0自诊断信息
CPU为模拟量模块和Genius块的每个通道建立自诊断信息。每个模拟量/O通道的自诊断信息占用一个字节。每个模拟量1/0通道使用%AI和%AQ占用两个字节，所以自
诊断存储器长度为数据存储器的一半。模拟量自诊断数据包括自诊断数据和过程数据，过程数据有高报警和低报警位。自诊断数据参考-[F]-和-[NF]-结点。过程位参考高/低报警结点，-[HA]- 和-[LA]-。模拟量数据的自诊断数据为每个模拟量输入(字)或者模拟量输出(字)数据的自诊断数据长度为一个字节。模拟量故障结点被应用程序引用时，将对自诊断字节中除过程位所有位进行或运算。任何一个自诊断位为ON，则报警结点闭合。所有自诊断位OFF，则报警结点打开。
冗余模块的缺省输入和自诊断数据丢失的应用程序
GBC报告冗余模块丢失时，CPU在下一个输入扫描更新用缺省数据更新输入数据表和自诊断表。在下一次输出扫描时更新输出自诊断信息。
BOSCH R902205680 R902205680 (BRAND NEW)
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