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INTERBUS成为国际上最广泛使用的现场总线之一，其主要原因就在于INTERBUS总线系统具有强大的诊断功能，每个输入/输出模块一直到总线控制板都有诊断显示功能。INTERBUS系统的状态可以根据现场模块的显示直接进行诊断，也可以通过专门的软件来判断。表1阐述了在整个自动化控制
INTERBUS become one of the most widely used fieldbus in the world, the main reason is that the INTERBUS bus system has a powerful diagnostic capabilities, each I / O module has a diagnostic display to the bus control panel. The status of the INTERBUS system can be diagnosed directly on the display of the field module or it can be determined by special software. Table 1 illustrates the entire automation control