發光二極管顯示，例如，硬件、編程、定時器或I/O出錯以及運行模式，如RUN、STOP、Startup。

6ES7298-8FA24-8DH0測試功能；
可使用編程器顯示程序執行過程中的信號狀態，可以不通過用戶程序而修改過程變量，以及輸出堆棧內容。
信息功能；
通過編程器以文本形式為用戶提供存儲能力信息、CPU的運行模式，以及主存儲器和裝載存儲器當前的使用情況、當前的循環時間和診斷緩沖區的內容。
集成的通訊功能

編程器/OP 通訊
全局數據通訊
S7 基本通訊
S7 通訊(只是服務器)
集成功能
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