S7-300自動化系統采用模塊化設計。它擁有豐富的模塊，且這些模塊均可以獨立地組合使用。

一個系統包含下列組件：

• CPU：
  不同的 CPU 可用于不同的性能范圍，包括具有集成 I/O 和對應功能的 CPU 以及具有集成 PROFIBUS DP、PROFINET 和點對點接口的 CPU。

• 用于數字量和模擬量輸入/輸出的信號模塊 (SM)。

• 用于連接總線和點對點連接的通信處理器 (CP)。

• 用于高速計數、定位（開環/閉環）及 PID 控制的功能模塊（FM）。

根據要求，也可使用下列模塊：

• 用于將 SIMATIC S7-300 連接到 120/230 V AC 電源的負載電源模塊(PS)。

• 接口模塊 (IM)，用于多層配置時連接中央控制器 (CC) 和擴展裝置 (EU)。
  通過分布式中央控制器 (CC) 和 3 個擴展裝置 (EU)，SIMATIC S7-300 可以操作多達 32 個模塊。所有模塊均在外殼中運行，并且無需風扇。

• SIPLUS 模塊可用于擴展的環境條件：
  適用于 -25 至 +60℃ 的溫度范圍及高濕度、結露以及有霧的環境條件。防直接日曬、雨淋或水濺，在防護等級為 IP20 機柜內使用時，可直接在汽車或室外建筑使用。不需要空氣調節的機柜和 IP65 外殼。

  • 

6ES7 138-4CA01-0AA0138-4CA01-1AA0

以下產品基本都是要訂貨，周期有4-6周，也有9-11周，價格優惠，歡迎詢價！
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