NI SCXI-1520通道模块接口
如果属于至少一个从设备或CI854/CI854A主设备的配置或参数数据发生变化，则属于CI854/CIL854A主单元和所有连接的从设备的完整下载配置和参数数据将写入该文件。日志文件还包含Control Builder M中不可用的内部计算数据。对于正常操作，不需要此日志文件。它主要用于发生错误时的维修目的。在线数据选择“单元状态”选项卡（请参阅图18）以获取有关CI854/CI854A单元硬件状态的在线信息。有关详细信息，请参阅第30页的Control Builder M文档和状态处理。I/O和通信行为I/O单元的插入和删除如果插入和删除I/O单元，则相应的输出设置为零。
If configuration or parameter data belonging to at least one slave or to the
CI854/CI854A master unit is changed then the complete downloaded configuration
and parameter data belonging to the CI854/CI854A master unit and all connected
slaves will be written into this file.
The logfile contains also internal calculated data that are not available in Control
Builder M. For the normal operation this logfile is not needed. It is mainly used for
service purpose in the case of an error.
Online Data
Choose the Unit Status tab (please refer toFigure 18) to get online information on
the hardware status of the CI854/CI854A unit. For details please refer to the Control
Builder M documentation and Status Handling on page 30.Behavior of I/O and Communication
Insertion and deletion of I/O units
In case of insertion and deletion of I/O units the corresponding outputs are set to
zero.
