MC02412000000
11131280-11173637
MC02412000000
11131280-11173637
MC02412000000
11131280-11173637
為使您可以限制由極短的更新時間引起的網絡負載,將為 IRT 數據組態更新組。如果只有
幾臺設備需要極短的更新時間,則將這些設備分配到個更新組。每個額外的更新組的更
新時間都是前一個組的 n 倍,其中 n 可以組態。這意味著數據更新頻率降低且網絡負載減少。
在 STEP 7 V5.4 中,僅規劃一個更新組。
IRT 與實時和 TCP/IP 通訊一起運行。
除了在更新時間內為 IRT 通訊保留了固定帶寬外,在更新時間內還允許進行 RT 通訊和 TCP/
IP 通訊。
在 RT 通信(實時通信)中,在 IO 控制器和 IO 設備之間傳輸周期性數據,但是,無法獲得
佳的同步效果。
未同步的 IO 設備將使用 RT 通訊自動交換數據。
由于也可進行 TCP/IP 通訊,因此可以傳送其它非實時數據或組態/診斷數據。
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