发光二极管显示，例如，硬件、编程、定时器或I/O出错以及运行模式，如RUN、STOP、Startup。

6ES7298-8FA24-8DH0测试功能；
可使用编程器显示程序执行过程中的信号状态，可以不通过用户程序而修改过程变量，以及输出堆栈内容。
信息功能；
通过编程器以文本形式为用户提供存储能力信息、CPU的运行模式，以及主存储器和装载存储器当前的使用情况、当前的循环时间和诊断缓冲区的内容。
集成的通讯功能

编程器/OP 通讯
全局数据通讯
S7 基本通讯
S7 通讯(只是服务器)
集成功能
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