Method and device for checking the error-free function of modules in a bus system comprising a central unit
    1.
    发明授权
    Method and device for checking the error-free function of modules in a bus system comprising a central unit 失效
    用于检查包括中央单元的总线系统中的模块的无差错功能的方法和装置

    公开(公告)号:US07197667B2

    公开(公告)日:2007-03-27

    申请号:US10495314

    申请日:2002-11-13

    IPC分类号: G06F11/00

    摘要: The error-free function of modules in a bus system with a central unit is tested. First, all (error-free) modules are set into a silent operating mode in response to an agreed silence-command, and then in this silent operating mode it is tested whether all modules still remain silent, i.e. do not transmit data, in response to an agreed data request allocated to these modules. A module that nonetheless transmits data is recognized as faulty and is deactivated. Subsequently, all modules except for a module to be tested are set into the silent operating mode, and then it is tested whether this test module transmits its data in response to the agreed data requests allocated to it and remains silent in response to the data requests not allocated to it. Additionally, the position of the return-transmitted data can be determined and compared with a nominal position.

    摘要翻译: 具有中央单元的总线系统中模块的无错误功能被测试。 首先,所有(无错误)模块都被设置为无声操作模式,以响应一个默认的静默命令,然后在这个无声操作模式下,测试所有模块是否保持静默,即不传输数据。 分配给这些模块的约定的数据请求。 然而,尽管如此,传输数据的模块被识别为故障并被禁用。 随后,除了要测试的模块之外的所有模块都被设置为静默操作模式,然后测试该测试模块是否响应于分配给它的约定的数据请求来发送其数据,并且响应于数据请求保持静默 没有分配给它 此外,可以确定返回发送数据的位置并将其与标称位置进行比较。