2711-B5A9L2

2711-B5A9L2PLC的工作原理如下：

PLC是由CPU、內(nèi)存、輸入/輸出模塊和通信模塊等組成的系統(tǒng)。在PLC系統(tǒng)中，通常包括輸入模塊和輸出模塊。輸入模塊負(fù)責(zé)將各種傳感器和開關(guān)信號(hào)轉(zhuǎn)換成數(shù)字信號(hào)并輸入到CPU中。輸出模塊負(fù)責(zé)接收CPU輸出的指令，并將其轉(zhuǎn)換成所需的控制信號(hào)并輸出到執(zhí)行器中。

PLC系統(tǒng)的工作流程如下：

1. 在開始工作時(shí)，PLC讀取輸入信號(hào)。

2. CPU對(duì)應(yīng)程序根據(jù)預(yù)設(shè)的邏輯，處理輸入信號(hào)并輸出所需的指令，將其傳遞給輸出模塊。

3. 輸出模塊將輸出信號(hào)轉(zhuǎn)換成控制信號(hào)，并將其輸出到執(zhí)行器中。

2711-B5A9L2 

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