描述
SPHSS03
如果是在做實(shí)驗(yàn),短距離話3連3、8連8,自己焊也沒什么問題,最初開始學(xué)S7-200PLC時(shí),我也都是用的D型接頭自己焊的,(有時(shí)沒D型接頭時(shí),被逼無奈時(shí)用線直接插到通信口孔里)。記得在斷電情況下連接,連接好就上電。
現(xiàn)在條件允許了,就按規(guī)范來作,用PROFIBUS總線連接器和電纜,連接二個(gè)或多個(gè)S7-200PLC,這樣是完全可以的,在實(shí)際現(xiàn)場(chǎng)也是這樣使用的。
這樣只能用于連接二個(gè)或多個(gè)S7-200PLC,也就是說這樣可以用于200PLC之間的通信,比如常用的PPI通信。
如果S7-200與與300、400或者HMI通訊,就不能這樣使用了,你可以使用PROFIBUS通訊或以太網(wǎng)通信,比如S7-200CPU通過EM277模塊連接到PROFIBUS-DP網(wǎng)絡(luò),或通過CP243-1以太網(wǎng)模塊與其它S7-200、S7-300或S7-400控制器進(jìn)行通信。
示教的目的是調(diào)整傳感器靈敏度,起調(diào)整步驟如下:將目標(biāo)放在探頭之間。設(shè)遠(yuǎn)程控制器為SET模式。按示教按鈕,示教指示燈(橙色)亮。
把遠(yuǎn)程控制器的模式設(shè)為RUN,以完成這次示教。
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